Blockchain Engineer

p> strong>Senior Blockchain Engineer /strong> /p> p> strong>Global Settlement · Miami, Florida (in person) /strong> · Full-time · Blockchain Infrastructure /p> p> em>Senior Blockchain Engineer to build and scale the core chain behind institutional settlement infrastructure: node infrastructure, consensus mechanisms, cross-chain systems, and protocol-level design. Hands-on engineering on production systems. Rust, Go, or comparable. 5+ years engineering, 3+ in blockchain. /em> /p> p> em>The salary range for this role is $120,000 - $240,000 per year. /em> /p> p> br> /p> p> strong>About Global Settlement /strong> /p> p>Global Settlement ( u>globalsettlement.com /u>) is building institutional-grade blockchain settlement infrastructure that bridges traditional banking and digital markets through stablecoins, commodities, FX, and real-world assets (RWAs). Think the global settlement reach of SWIFT, rebuilt for real-time, regulated digital asset transactions. /p> p> br> /p> p> strong>The role /strong> /p> p>You build and scale the core chain architecture on our blockchain infrastructure team: node infrastructure, consensus mechanisms, cross-chain systems, and protocol-level design, working alongside our application team. This is a hands-on engineering role on production systems, not a research or advisory one. You will be in the node, consensus, and settlement-protocol code daily. /p> p> br> /p> p> strong>What you ll do /strong> /p> ul> li>Design, build, and maintain blockchain node infrastructure and settlement protocol architecture. /li> li>Implement and optimize consensus mechanisms (PoA, PoS, BFT variants) for enterprise-grade performance and deterministic finality. /li> li>Architect cross-chain communication and bridging systems for multi-network interoperability. /li> li>Drive security, scalability, and reliability across all chain-level systems, and identify and mitigate the risks they carry. /li> li>Debug and harden production systems: consensus edge cases, node performance, and on-chain security. /li> li>Lead technical research on emerging protocols, L1/L2 architectures, and settlement patterns, and translate it into shipped code. /li> li>Collaborate with smart contract, application, and banking-integration teams to deliver integrated settlement solutions. /li> li>Own the RFCs, architecture decision records, and implementation standards engineering builds against, and mentor engineers through code and design review. /li> li>This role is a hands-on coding role with roughly 80% of your time spent coding, 10% of time spent strategizing and coordinating with team members, and 10% of your time spent documenting. /li> /ul> p> br> /p> p> strong>What you bring /strong> /p> ul> li>5+ years of software engineering, with 3+ years focused on blockchain development. /li> li>Deep hands-on experience with blockchain node infrastructure, consensus algorithms, and protocol-level system design. /li> li>Strong proficiency in one or more of Rust, Go, Solidity, Java, or Python, and the flexibility to switch stacks as the roadmap moves. /li> li>Production experience with Ethereum, Cosmos, Hyperledger, Canton, or comparable L1/L2 networks. A track record of shipping production blockchain infrastructure, not just smart contracts, is the strongest signal. /li> li>Command of cryptographic primitives, key management, and on-chain security practices. /li> li>Cloud infrastructure (AWS, GCP, or Azure) and containerization (Docker, Kubernetes). /li> li>Startup work ethic and heavy use of productivity and coding tools to multiply your own output and the team s. You can take a three-bullet brief and execute without hand-holding. /li> /ul> p> br> /p> p> strong>Nice to have /strong> /p> ul> li>Stablecoin systems, CBDC infrastructure, or RWA tokenization. /li> li>Cross-chain and interoperability protocols. /li> li>Financial services, payments, or regulated settlement background. /li> li>Digital asset compliance and regulatory requirements. /li> /ul> p> br> /p> p> strong>Note: /strong> This is a blockchain infrastructure role scoped to the core chain. The core focus is node infrastructure, consensus mechanisms, cross-chain systems, and protocol-level design. If your experience is solely in smart contract development or application backends without protocol-level work, this may not be the right fit. /p> p> br> /p> p> strong>Why join Global Settlement /strong> /p> ul> li>Ground-floor opportunity to architect settlement infrastructure used by sovereign and enterprise clients /li> li>Direct impact on how digital assets move through the global financial system /li> li>Work at the intersection of blockchain infrastructure, traditional finance, and regulatory innovation /li> /ul> p> br> /p> p> strong>Location /strong> /p> p> strong>This role is IN PERSON at our office in Miami, Florida. /strong> /p> p>New hires may start remote with the expectation of relocating to Miami within 60 days of start date. Must be legally authorized to work in the United States. /p> p> strong>How to apply /strong> /p> p>Apply to our open job on linkedin or go to the careers page on our website to apply. /p> p>Join us at Global Settlement and help build the future of digital payments on institutional-grade blockchain infrastructure. /p> p> br> /p>When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

Blockchain Engineer

eClercx

Raleigh, NC

Job Description Blockchain Engineer Location: Raleigh, NC or New York City, NY Type: Full-time Job Summary eClerx is seeking a motivated Software Engineer to join our Application Development team's technical implementation for enterprise software and its blockchain and digital-asset infrastructure. As a Software Engineer, you'll own and deliver features end to end. You must have a strong technical foundation in full-stack engineering, including hands-on experience integrating blockchain and Web3 technologies into enterprise systems, along with a passion for scalable and secure design Responsibilities Own the technical delivery of features and projects from design through deployment, ensuring quality, performance, and scalability Contribute to architectural discussions and code reviews Adhere to coding standards, architectural principles, and security best practices Collaborate with Product and UX teams to translate client needs into high-impact solutions Build test automation across the full stack of our software and follow engineering best practices Optimize application performance and reliability in a cloud environment Implement blockchain integrations, node connectivity, transaction submission, event monitoring, wallet/custody interactions, and signing/approval workflows, using enterprise-grade backend and Web3 libraries Write, test, and deploy smart contracts (Solidity or equivalent) following established security practices, handle full transaction lifecycle, submission, confirmation, idempotency, and failure/reversal handling, with audit-friendly logging Partner with Product Managers and Technical Project Managers to understand scope, timelines, and priorities. Communicate project status, risks, and dependencies to stakeholders Eligibility Requirements BS or BA in Computer Science or related field 5+ years of full-stack development experience, with strong backend expertise in one or more languages (e.g., Java/Spring Boot, Node.js, Python, Go) Hands-on experience building on blockchain/DLT platforms (e.g., Ethereum, Solana, Hyperledger Besu, or Canton/Daml), including transaction lifecycle (gas, nonce, confirmations, finality) and event processing Experience with frontend frameworks (React/Angular) using TypeScript/JavaScript Strong understanding of application architecture, design patterns, and performance optimization Proficiency with REST APIs, and database technologies (SQL and NoSQL) Hands-on experience with Git, Maven/Gradle, and CI/CD pipelines Excellent communication, analytical, and problem-solving skills Curiosity and willingness to learn and grow within a collaborative team environment In the US, the target base salary for this role is $130K-$190K. Compensation is based on a range of factors that include relevant experience, knowledge, skills, other job-related qualifications, and geography. We expect the majority of candidates who are offered roles at our company to fall throughout the range based on these factors About eClerx eClerx is a leading provider of productized services, bringing together people, technology and domain expertise to amplify business results. The firm provides business process management, automation, and analytics services to a number of Fortune 2000 enterprises, including some of the world's leading financial services, communications, retail, fashion, media & entertainment, manufacturing, travel & leisure, and technology companies. Incorporated in 2000, eClerx is traded on both the Bombay and National Stock Exchanges of India. The firm employs more than 19,000 people across Australia, Canada, France, Germany, Switzerland, Egypt. India, Italy, Netherlands, Peru, Philippines, Singapore, Thailand, the UK, and the USA. For more information, visit You can also find us on: ;br> ;br> eClerx is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. We are also committed to protecting and safeguarding your personal data. Please find our policy here

As a Blockchain Engineer at Ondo, you will help design our smart contract systems - not just the contracts themselves, but how they're deployed, secured, monitored, and managed across their entire lifetime, and how they connect to the people and products that depend on them. You'll design secure, efficient, and scalable smart contract solutions across many blockchain ecosystems powering Real World Asset (RWA) tokenization. But the harder and more important part of this role is everything around the contract: keeping it secure from deploy through every day it's live, building tooling that lets non-technical teammates safely view and manage on-chain state, and creating automated systems that take manual, error-prone work off the table. You'll think about how a smart contract design decision ripples outward, to the web app, to the teams operating the system day to day, and ultimately to our end users. You'll collaborate with product, legal, compliance, web, and ops to make sure contracts are technically sound, regulatorily aligned, and genuinely operable by the teams who rely on them day to day. Throughout, you'll favor simple, elegant designs that let us move quickly and safely. This is a unique opportunity to shape the future of finance by building the systems that bring real-world assets on-chain, and by making those systems something a whole organization can build on with confidence. Responsibilities Smart Contract System Design : Contribute to the architecture of smart contract systems for Ondo's evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start. Lifecycle Security & Operations: Help ensure contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve. Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly. Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users. Collaborative Execution: Work closely with senior engineers and leadership on high-impact blockchain projects, contributing sound technical decisions aligned with long-term goals. Requirements Based in PT, MT, CT, or ET time zones. Excellent technical and non-technical communication skills, verbal and written. Bachelor's degree in Computer Science, Engineering, or a related technical field. 3+ years of software engineering experience. 1+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains. Strong competency with Solidity; exposure to non-EVM smart contract languages a plus — particularly Solana. Demonstrated ability to design systems , not just contracts — including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams. Proven results building and scaling a DeFi protocol. Python and/or TypeScript experience preferred (for building tooling and automation). Strong technical grasp and excellent judgment on task prioritization. Strong emphasis on understanding the "why" behind requirements and a commitment to defining the "minimum scope." What we offer Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we're well-funded and believe that great talent deserves great compensation. Full benefits (medical, vision, and dental) and flexible vacation policy (PTO). Small remote-first team across many countries — you'll be an early team member helping shape our vision, culture, and design practices. A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, McKinsey, Circle, Uniswap. Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures.

Blockchain Engineer

Ondo Finance

United States

As a Blockchain Engineer at Ondo, you will help design our smart contract systems - not just the contracts themselves, but how they're deployed, secured, monitored, and managed across their entire lifetime, and how they connect to the people and products that depend on them. You'll design secure, efficient, and scalable smart contract solutions across many blockchain ecosystems powering Real World Asset (RWA) tokenization. But the harder and more important part of this role is everything around the contract: keeping it secure from deploy through every day it's live, building tooling that lets non-technical teammates safely view and manage on-chain state, and creating automated systems that take manual, error-prone work off the table. You'll think about how a smart contract design decision ripples outward, to the web app, to the teams operating the system day to day, and ultimately to our end users. You'll collaborate with product, legal, compliance, web, and ops to make sure contracts are technically sound, regulatorily aligned, and genuinely operable by the teams who rely on them day to day. Throughout, you'll favor simple, elegant designs that let us move quickly and safely. This is a unique opportunity to shape the future of finance by building the systems that bring real-world assets on-chain, and by making those systems something a whole organization can build on with confidence. Responsibilities Smart Contract System Design: Contribute to the architecture of smart contract systems for Ondo's evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start. Lifecycle Security & Operations: Help ensure contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve. Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly. Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users. Collaborative Execution: Work closely with senior engineers and leadership on high-impact blockchain projects, contributing sound technical decisions aligned with long-term goals. Requirements Based in PT, MT, CT, or ET time zones. Excellent technical and non-technical communication skills, verbal and written. Bachelor's degree in Computer Science, Engineering, or a related technical field. 3+ years of software engineering experience. 1+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains. Strong competency with Solidity; exposure to non-EVM smart contract languages a plus — particularly Solana. Demonstrated ability to design systems, not just contracts — including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams. Proven results building and scaling a DeFi protocol. Python and/or TypeScript experience preferred (for building tooling and automation). Strong technical grasp and excellent judgment on task prioritization. Strong emphasis on understanding the "why" behind requirements and a commitment to defining the "minimum scope." What we offer Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we're well-funded and believe that great talent deserves great compensation. Full benefits (medical, vision, and dental) and flexible vacation policy (PTO). Small remote-first team across many countries — you'll be an early team member helping shape our vision, culture, and design practices. A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, McKinsey, Circle, Uniswap. Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures. Originally posted on Himalayas

As a Blockchain Engineer at Ondo, you will help design our smart contract systems - not just the contracts themselves, but how they re deployed, secured, monitored, and managed across their entire lifetime, and how they connect to the people and products that depend on them. You ll design secure, efficient, and scalable smart contract solutions across many blockchain ecosystems powering Real World Asset (RWA) tokenization. But the harder and more important part of this role is everything around the contract: keeping it secure from deploy through every day it s live, building tooling that lets non-technical teammates safely view and manage on-chain state, and creating automated systems that take manual, error-prone work off the table. You ll think about how a smart contract design decision ripples outward, to the web app, to the teams operating the system day to day, and ultimately to our end users. You ll collaborate with product, legal, compliance, web, and ops to make sure contracts are technically sound, regulatorily aligned, and genuinely operable by the teams who rely on them day to day. Throughout, you ll favor simple, elegant designs that let us move quickly and safely. This is a unique opportunity to shape the future of finance by building the systems that bring real-world assets on-chain, and by making those systems something a whole organization can build on with confidence. Responsibilities Smart Contract System Design: Contribute to the architecture of smart contract systems for Ondo s evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start. Lifecycle Security & Operations: Help ensure contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve. Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly. Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users. Collaborative Execution: Work closely with senior engineers and leadership on high-impact blockchain projects, contributing sound technical decisions aligned with long-term goals. Requirements Based in PT, MT, CT, or ET time zones. Excellent technical and non-technical communication skills, verbal and written. Bachelor s degree in Computer Science, Engineering, or a related technical field. 3+ years of software engineering experience. 1+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains. Strong competency with Solidity; exposure to non-EVM smart contract languages a plus — particularly Solana. Demonstrated ability to design systems, not just contracts — including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams. Proven results building and scaling a DeFi protocol. Python and/or TypeScript experience preferred (for building tooling and automation). Strong technical grasp and excellent judgment on task prioritization. Strong emphasis on understanding the why behind requirements and a commitment to defining the minimum scope. What we offer Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we re well-funded and believe that great talent deserves great compensation. Full benefits (medical, vision, and dental) and flexible vacation policy (PTO). Small remote-first team across many countries — you ll be an early team member helping shape our vision, culture, and design practices. A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, McKinsey, Circle, Uniswap. Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures.When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

strong>Job Description br> br> /strong> strong>Blockchain Engineer br> br> /strong>Location: Raleigh, NC or New York City, NY br> br>Type: Full-time br> br> strong>Job Summary br> br> /strong>eClerx is seeking a motivated Software Engineer to join our Application Development team s technical implementation for enterprise software and its blockchain and digital-asset infrastructure. br> br>As a Software Engineer, you ll own and deliver features end to end. You must have a strong technical foundation in full-stack engineering, including hands-on experience integrating blockchain and Web3 technologies into enterprise systems, along with a passion for scalable and secure design br> br> strong>Responsibilities br> br> /strong> ul> li> Own the technical delivery of features and projects from design through deployment, ensuring quality, performance, and scalability /li> li> Contribute to architectural discussions and code reviews /li> li> Adhere to coding standards, architectural principles, and security best practices /li> li> Collaborate with Product and UX teams to translate client needs into high-impact solutions /li> li> Build test automation across the full stack of our software and follow engineering best practices /li> li> Optimize application performance and reliability in a cloud environment /li> li> Implement blockchain integrations, node connectivity, transaction submission, event monitoring, wallet/custody interactions, and signing/approval workflows, using enterprise-grade backend and Web3 libraries /li> li> Write, test, and deploy smart contracts (Solidity or equivalent) following established security practices, handle full transaction lifecycle, submission, confirmation, idempotency, and failure/reversal handling, with audit-friendly logging /li> li> Partner with Product Managers and Technical Project Managers to understand scope, timelines, and priorities. /li> li> Communicate project status, risks, and dependencies to stakeholders br> br> /li> /ul> strong>Eligibility Requirements br> br> /strong> ul> li> BS or BA in Computer Science or related field /li> li> 5+ years of full-stack development experience, with strong backend expertise in one or more languages (e.g., Java/Spring Boot, Node.js, Python, Go) /li> li> Hands-on experience building on blockchain/DLT platforms (e.g., Ethereum, Solana, Hyperledger Besu, or Canton/Daml), including transaction lifecycle (gas, nonce, confirmations, finality) and event processing /li> li> Experience with frontend frameworks (React/Angular) using TypeScript/JavaScript /li> li> Strong understanding of application architecture, design patterns, and performance optimization /li> li> Proficiency with REST APIs, and database technologies (SQL and NoSQL) /li> li> Hands-on experience with Git, Maven/Gradle, and CI/CD pipelines /li> li> Excellent communication, analytical, and problem-solving skills /li> li> Curiosity and willingness to learn and grow within a collaborative team environment br> br> /li> /ul>In the US, the target base salary for this role is $130K-$190K. Compensation is based on a range of factors that include relevant experience, knowledge, skills, other job-related qualifications, and geography. We expect the majority of candidates who are offered roles at our company to fall throughout the range based on these factors br> br> strong>About EClerx br> br> /strong>eClerx is a leading provider of productized services, bringing together people, technology and domain expertise to amplify business results. br> br>The firm provides business process management, automation, and analytics services to a number of Fortune 2000 enterprises, including some of the world s leading financial services, communications, retail, fashion, media & entertainment, manufacturing, travel & leisure, and technology companies. Incorporated in 2000, eClerx is traded on both the Bombay and National Stock Exchanges of India. The firm employs more than 19,000 people across Australia, Canada, France, Germany, Switzerland, Egypt. India, Italy, Netherlands, Peru, Philippines, Singapore, Thailand, the UK, and the USA. br> br>For more information, visit www.eclerx.com br> br>You can also find us on: br> br>https://www.linkedin.com/company/eclerx/ br> br>https://www.indeed.com/cmp/Eclerx/about br> br>https://www.glassdoor.com/eClerx br> br>eClerx is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. We are also committed to protecting and safeguarding your personal data. Please find our policy hereWhen applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

ul> li>Bachelor s degree in Computer Science, Engineering, or a related discipline; MS is a plus /li> li> strong>8+ years /strong> of overall software engineering experience, with a strong backend development foundation /li> li> strong>2 to 4 years /strong> of hands-on experience in strong>Web3 and blockchain application development /strong>, including smart contract development and blockchain protocol integration /li> li> strong>3 to 5 years /strong> of experience with strong>backend development /strong> using Java/Spring, Node.js, or equivalent enterprise frameworks /li> li>Proficiency in strong>Solidity /strong> smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices /li> li>Hands-on experience with strong>Web3 libraries /strong> such as Web3J, Web3JS, Ethers.js, or Viem /li> li>Solid understanding of strong>blockchain fundamentals /strong> — consensus mechanisms, transaction lifecycle, gas models, wallet infrastructure, and key management /li> li>Experience with strong>token standards /strong> (ERC-20, ERC-721, ERC-1155, ERC-3525, or equivalent) and tokenization patterns /li> li>Familiarity with strong>permissioned blockchain networks /strong> (Hyperledger Besu, Fabric, Corda, or R3) is a strong plus /li> li>Experience with strong>asynchronous programming /strong>, event-driven systems, and message queuing (Kafka, RabbitMQ, or equivalent) /li> li>Familiarity with strong>DevOps practices /strong>, containerization (Docker, Kubernetes), and CI/CD pipelines /li> li>Understanding of strong>cryptographic concepts /strong> — digital signatures, hashing, PKI, and secure key management — as applied to blockchain systems /li> li>Exposure to strong>Layer 2 scaling solutions /strong> (Polygon, Optimism, zkSync, etc.) and cross-chain interoperability protocols is a plus /li> li>Experience in strong>financial services or regulated industries /strong> is a plus /li> li>Familiarity with strong>Agile/Scrum /strong> methodologies and distributed team collaboration tools /li> /ul> p> strong>Competencies / Skills /strong> /p> ul> li> strong>Web3 Engineering Depth: /strong> Strong command of the Web3 technology stack — from smart contract development to on-chain/off-chain integration patterns and blockchain node interaction /li> li> strong>Backend Engineering Fundamentals: /strong> Solid grounding in enterprise software engineering — API design, microservices, data structures, algorithms, and design patterns /li> li> strong>Security Mindset: /strong> Awareness of common smart contract vulnerabilities (reentrancy, front-running, integer overflow, etc.) and best practices for secure on-chain development /li> li> strong>Curiosity & Adaptability: /strong> Genuine enthusiasm for the Web3 ecosystem and the ability to rapidly learn and apply new protocols, standards, and tooling /li> li> strong>Collaborative Spirit: /strong> Strong team player who communicates clearly and constructively with engineers, architects, and non-technical stakeholders /li> li> strong>Delivery Orientation: /strong> Ability to manage personal delivery commitments, prioritize effectively, and produce high-quality output within sprint cycles /li> li> strong>Attention to Detail: /strong> Rigorous approach to testing, code quality, and documentation — particularly important given the immutable nature of on-chain deployments /li> li> strong>Tooling Proficiency: /strong> Working knowledge of engineering tools including Git, Jira, Jenkins, Hardhat/Foundry, Docker, Helm, and observability platforms /li> /ul> p> br> /p>When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

The role We are hiring a Blockchain Engineer to design and implement smart contracts and chain integrations. You will work closely with backend and product teams to ship secure, production-ready on-chain systems. This is a hands-on role focused on correctness, gas efficiency, and operational safety. What you'll do Design and implement smart contracts Integrate on-chain systems with backend and frontend services Write tests, deployment scripts, and upgrade paths Review contract security and operational risks Support indexing, events, and transaction monitoring Collaborate on token, custody, and market flows What we're looking for Must-have experience and skills for this role. 3+ years of software engineering experience Strong Solidity or equivalent smart contract experience Understanding of EVM fundamentals and common patterns Experience with Hardhat / Foundry (or similar) Ability to reason about security and edge cases Comfort collaborating with backend and product teams Nice to have Audit experience or formal verification exposure L2 networks (Polygon, Arbitrum, Optimism) ethers.js / web3.js integrations RWA, DeFi, or fintech product experience Tech stack Solidity Hardhat / Foundry Ethereum · L2s ethers.js Node.js PostgreSQL Why join Work on modern Web3, RWA, and digital products High ownership and visible product impact Close collaboration with engineering, product, and design Fast-paced environment with real production systems Remote-friendly across global time zones Hiring process Application review Technical interview Final discussion How to apply We review every relevant profile. Keep it concise and concrete. Resume or LinkedIn GitHub profile or portfolio (preferred) Examples of relevant work you're proud of Apply with the button on this page.

Blockchain Engineer 2

Prometheum

United States

About Us:- Prometheum is building the market infrastructure that brings securities onto the blockchain. Our SEC-registered broker-dealer network carries a digital asset through its entire life, from issuance and distribution to qualified custody, correspondent clearing, and secondary market trading, all within U.S. securities law. That work has put us first more than once. We became the first SEC-registered special purpose broker-dealer, and the first to trade ETH inside a traditional brokerage account. Those milestones rest on systems our engineers build every day, and we are searching for engineers like you to help us grow our team. Role:- Blockchain Engineer 2 - Full time W2 Salary Range:- $130,000 - $165,000 Overview:- As a Blockchain Engineer 2, you take ownership of a whole feature once an epic is agreed on. Epics come from the Architect and CTO, but they are shaped in team brainstorms where you are expected to bring a view, including what is happening across the blockchain and cryptography landscape and how it should change our approach. Once we have consensus, you break the work into pieces the team can pick up, get it ready to build, guide it through to release, and keep stakeholders honestly informed along the way. You will work with the Architect on technical design, with guidance from senior engineers as you grow into that part of the job. We are a specialist team. Other teams depend on us for custody contracts, transaction signing and orchestration, and the key management that ties them together, work they cannot do themselves, so our output is measured by how well it serves those teams and the customers behind them, not by how much of it you shipped. When something is not moving, we expect you to say so early and come with options. Our engineering team is fully remote. Responsibilities:- Build and maintain secure and optimized blockchain applications Own epics end to end, from story writing and pointing through delivery and release Build across many different languages taking on the large, complex problems in your team's scope Report progress on your epic regularly and accurately, and raise risks before they become surprises Partner with senior engineers on technical design, architecture decisions, and future epics Demonstrate a passion for learning, building, and constantly improving cutting-edge applications Communicate often to encourage tight and quick feedback loops and remove potential blockers Use AI coding tools as a default part of your workflow, and review what they produce with the same rigor you would apply to your own code Review teammates' code in a way that catches design concerns, edge cases, and test gaps Work directly with neighboring systems throughout delivery, not just at the handoff Investigate and resolve issues found in QA, UAT, and production Qualifications:- 3 or more years of professional software engineering experience building and shipping production software Strong blockchain fundamental knowledge including in-depth knowledge of top chains (i.e. Bitcoin and Ethereum) Familiarity with basic cryptography commonly utilized by blockchains Strong administrative/organizational skills (ability to effectively prioritize, manage time, and meet deadlines on multiple projects) Automated testing as a habit rather than an afterthought Hands-on experience with AI coding assistants, plus the judgment to know when their output is wrong Clear written communication with a strong command of the English language, which matters more on a fully remote team Able to reason through technical disagreements with evidence, and to update your view when the evidence shifts Authorized to work in the U.S. or Canada Able to pass a comprehensive background check, which is required for this role Nice to have:- Experience mentoring or onboarding other engineers Background in finance, brokerage, trading, or custody Exposure to regulated environments and the audit trails they require Experience with Jira, Confluence, or similar How we work:- Fully remote engineering. We work together in real time, with overlapping hours for pairing, reviews, and ceremonies. AI-forward. We actively champion AI and tooling that ships customer value faster without giving up quality. Engineers at every level are expected to use these tools well and to bring what they find back to the team. Feedback is specific and regular. Quarterly reviews, weekly 1:1s, and a candid conversation when something is not landing, not a surprise at year end. Benefits:- Health, dental, vision, disability, and life insurance Stock options Competitive vacation time, paid sick days, and time off for observed federal holidays Equipment provided Prometheum is an equal opportunity employer. Originally posted on Himalayas

Senior Blockchain Engineer Location: Southlake, Texas Role Overview We are hiring a Senior Engineer, Blockchain Platforms to help build and integrate the blockchain infrastructure layer that underpins our organization's digital asset custody and tokenization platforms. This is a hands-on engineering role focused on Layer-1 blockchain integration, core blockchain infrastructure components, wallet engineering, and custody-related blockchain workflows. This engineer operates at the intersection of blockchain protocol mechanics and institutional custody systems. Key Responsibilities Integrate company systems with existing Layer-1 blockchains.Evaluate and, where appropriate, contribute to building or extending Layer-1 capabilities to meet custody, scalability, or resiliency needs.Understand chain-level mechanics such as transaction lifecycle, finality, forks, reorgs, and event propagation.Design and build core blockchain infrastructure services, including indexers, event processors, block explorers, and chain data services.Contribute to wallet architecture and development, including blockchain-facing wallet services and transaction creation/signing workflows.Share responsibility for custody-related blockchain workflows, including on-chain transaction execution and event monitoring.Help define safe patterns for interacting with smart contracts and token standards from custody platforms.Apply modern engineering practices to build reliable, testable, and observable blockchain services. Required Qualifications 7+ years of professional software engineering experience.Hands-on experience building or integrating blockchain or distributed ledger systems.Strong understanding of Layer-1 blockchain protocols and transaction lifecycles.Experience building backend services, APIs, and infrastructure components.Proficiency in one or more languages such as Go, Java, Rust, or Python.Ability to work effectively across custody, security, and platform teams. Preferred Qualifications Experience with blockchain indexers, explorers, or chain analytics systems.Familiarity with wallet architecture and blockchain signing workflows.Exposure to crypto custody platforms or security-sensitive financial systems.Strong debugging instincts in distributed, asynchronous environments.Experience using AI tooling to support complex software development. What Success Looks Like Blockchain integrations are predictable, observable, and resilient.Wallet and transaction pipelines behave correctly across normal and edge-case chain conditions.Custody systems interact with blockchains safely and consistently.Incidents related to blockchain dependencies are well understood and quickly diagnosed.Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policyEverforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at accommodations@apexsystems.com or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

About Velixus Labs Velixus Labs is building the next generation of AI, blockchain, and Web3 infrastructure. We help organizations leverage decentralized technologies to create more secure, transparent, and intelligent digital products. We're a team of builders who enjoy solving difficult technical problems and turning ambitious ideas into production systems used by real people. The Role We're looking for a Senior Blockchain Engineer to help architect and build the blockchain products that power our clients' and partners' ecosystems. You'll work closely with product leaders, designers, and engineers to develop smart contracts, decentralized applications, and blockchain infrastructure that are secure, scalable, and ready for production. This is a hands-on engineering role for someone who enjoys writing code, making architectural decisions, and taking ownership of products from concept to deployment. What You'll Do Design and develop smart contracts and blockchain-based applications. Build backend services and integrations that interact with blockchain networks. Participate in architecture discussions and help shape technical direction. Review code, improve engineering standards, and contribute to security best practices. Work closely with product and design teams to turn ideas into working products. Identify performance, scalability, and reliability improvements across the stack. Mentor other engineers and contribute to a strong engineering culture. Stay current with developments across blockchain, Web3, and decentralized infrastructure. What We're Looking For Strong software engineering fundamentals and experience building production systems. Professional experience developing blockchain applications or smart contracts. Deep understanding of Ethereum, EVM-based networks, or similar blockchain ecosystems. Experience with Solidity and modern Web3 development tools. Ability to make sound technical decisions and work independently. A practical approach to building secure, maintainable software. Strong communication skills and a collaborative mindset. Nice to Have Experience building DeFi, tokenization, wallet, NFT, or infrastructure products. Familiarity with Layer 2 networks or cross-chain technologies. Experience working in startups or fast-moving product teams. Contributions to open-source projects or active participation in the blockchain community. Why Join Velixus Labs Work on meaningful blockchain and AI projects with global clients. Join a team that values ownership, curiosity, and technical excellence. Flexible remote-first environment. Competitive compensation and performance incentives. Learning and development support for conferences, certifications, and training. Opportunity to help shape products and technical direction from an early stage. Compensation We believe exceptional engineers should be rewarded for the value they create. Annual base salary: $180,000 – $260,000 USD Compensation is determined based on experience, technical expertise, location, and overall impact. In addition to base salary, eligible employees may receive performance-based bonuses, equity participation, or token incentives where applicable. Exceptional candidates may be considered above the stated range. Benefits & Perks Remote-first flexibility and flexible working hours. Competitive compensation package. Annual learning and development budget. Company-provided equipment and home office support. Flexible paid time off policy. Career growth opportunities in a rapidly evolving industry.

strong>Bright Vision Technologies /strong> is seeking an experienced strong>Senior Blockchain Engineer /strong> to join our growing engineering team and build secure, scalable blockchain solutions for enterprise applications. br> br>This is a fantastic opportunity to join an established and well-respected organization offering tremendous career growth potential. br> br> strong>Job Title: /strong> Senior Blockchain Engineer br> br> ul> li>Location: 100% Remote (U.S.) /li> li>Employment Type: Full-time | Direct W2 /li> li>Salary: $140,000–$200,000 per year /li> li>Experience: 6+ Years br> br> /li> /ul> strong>Work Authorization: /strong> U.S. Citizens, Green Card Holders, EAD Holders, and H-1B transfer candidates are welcome to apply. We are unable to sponsor new H-1B visa petitions for this position. br> br> strong>Responsibilities br> br> /strong> ul> li>Design, develop, and deploy secure smart contracts using Solidity /li> li>Build scalable blockchain applications (dApps) and backend services /li> li>Integrate enterprise systems with Ethereum, Hyperledger Fabric, Polygon, Avalanche, or other blockchain platforms /li> li>Develop REST APIs, GraphQL services, and blockchain integrations /li> li>Implement wallet integrations, tokenization, digital identity, and transaction processing solutions /li> li>Optimize blockchain performance, security, and scalability /li> li>Collaborate with architects, DevOps, and cross-functional teams throughout the software development lifecycle br> br> /li> /ul> strong>Required Qualifications br> br> /strong> ul> li>6+ years of software development experience /li> li>3+ years of hands-on blockchain development experience /li> li>Strong expertise with Solidity, Ethereum, and EVM-compatible networks /li> li>Experience with Node.js, Java, or .NET Core /li> li>Experience building dApps using React, Angular, or Vue.js /li> li>Knowledge of ERC-20, ERC-721, ERC-1155 token standards /li> li>Experience with REST APIs, GraphQL, SQL/NoSQL databases, Git, CI/CD, Azure, or AWS /li> li>Strong understanding of blockchain architecture, cryptography, distributed systems, and Agile development br> br> /li> /ul> strong>Preferred Skills br> br> /strong> ul> li>Hyperledger Fabric /li> li>Layer-2 solutions (Polygon, Arbitrum, Optimism) /li> li>Hardhat, Foundry, Truffle, Remix /li> li>Docker, Kubernetes, Terraform /li> li>Blockchain security and smart contract auditing br> br> /li> /ul>Apply Now br> br>For immediate consideration, send your resume to strong>jaya@bvteck.com or call 908-505-3545 br> br> /strong> strong>Bright Vision Technologies is an Equal Opportunity Employer. br> br> /strong>Equal Employment Opportunity (EEO) Statement br> br>Bright Vision Technologies (BV Teck) is committed to equal employment opportunity (EEO) for all employees and applicants without regard to race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, veteran status, or any other protected status as defined by applicable federal, state, or local laws. This commitment extends to all aspects of employment, including recruitment, hiring, training, compensation, promotion, transfer, leaves of absence, termination, layoffs, and recall. br> br>BV Teck expressly prohibits any form of workplace harassment or discrimination. Any improper interference with employees ability to perform their job duties may result in disciplinary action up to and including termination of employment. br> br>Powered by JazzHR br> br>nZ4gLEgUZPWhen applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

p> strong>Role: Web3 & Blockchain Engineer /strong> /p> p> strong>Location: NY/NJ- Hybrid /strong> /p> p> strong>Fulltime Position /strong> /p> p> strong> /strong> /p> p> br> /p> p> strong>Qualifications / Experience /strong> /p> ul> li>Bachelor s degree in Computer Science, Engineering, or a related discipline; MS is a plus /li> li> strong>8+ years /strong> of overall software engineering experience, with a strong backend development foundation /li> li> strong>2 to 4 years /strong> of hands-on experience in strong>Web3 and blockchain application development /strong>, including smart contract development and blockchain protocol integration /li> li> strong>3 to 5 years /strong> of experience with strong>backend development /strong> using Java/Spring, Node.js, or equivalent enterprise frameworks /li> li>Proficiency in strong>Solidity /strong> smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices /li> li>Hands-on experience with strong>Web3 libraries /strong> such as Web3J, Web3JS, Ethers.js, or Viem /li> li>Solid understanding of strong>blockchain fundamentals /strong> — consensus mechanisms, transaction lifecycle, gas models, wallet infrastructure, and key management /li> li>Experience with strong>token standards /strong> (ERC-20, ERC-721, ERC-1155, ERC-3525, or equivalent) and tokenization patterns /li> li>Familiarity with strong>permissioned blockchain networks /strong> (Hyperledger Besu, Fabric, Corda, or R3) is a strong plus /li> li>Experience with strong>asynchronous programming /strong>, event-driven systems, and message queuing (Kafka, RabbitMQ, or equivalent) /li> li>Familiarity with strong>DevOps practices /strong>, containerization (Docker, Kubernetes), and CI/CD pipelines /li> li>Understanding of strong>cryptographic concepts /strong> — digital signatures, hashing, PKI, and secure key management — as applied to blockchain systems /li> li>Exposure to strong>Layer 2 scaling solutions /strong> (Polygon, Optimism, zkSync, etc.) and cross-chain interoperability protocols is a plus /li> li>Experience in strong>financial services or regulated industries /strong> is a plus /li> li>Familiarity with strong>Agile/Scrum /strong> methodologies and distributed team collaboration tools /li> /ul> p> strong>Competencies / Skills /strong> /p> ul> li> strong>Web3 Engineering Depth: /strong> Strong command of the Web3 technology stack — from smart contract development to on-chain/off-chain integration patterns and blockchain node interaction /li> li> strong>Backend Engineering Fundamentals: /strong> Solid grounding in enterprise software engineering — API design, microservices, data structures, algorithms, and design patterns /li> li> strong>Security Mindset: /strong> Awareness of common smart contract vulnerabilities (reentrancy, front-running, integer overflow, etc.) and best practices for secure on-chain development /li> li> strong>Curiosity & Adaptability: /strong> Genuine enthusiasm for the Web3 ecosystem and the ability to rapidly learn and apply new protocols, standards, and tooling /li> li> strong>Collaborative Spirit: /strong> Strong team player who communicates clearly and constructively with engineers, architects, and non-technical stakeholders /li> li> strong>Delivery Orientation: /strong> Ability to manage personal delivery commitments, prioritize effectively, and produce high-quality output within sprint cycles /li> li> strong>Attention to Detail: /strong> Rigorous approach to testing, code quality, and documentation — particularly important given the immutable nature of on-chain deployments /li> li> strong>Tooling Proficiency: /strong> Working knowledge of engineering tools including Git, Jira, Jenkins, Hardhat/Foundry, Docker, Helm, and observability platforms /li> /ul> p> br> /p> p>If interested, Kindly reply with the following details to Email- jnehru@nam-it.com /p> p> br> /p> p>Visa Status /p> p>Current Location /p> p>Expected Salary CAD /p> p>Resume /p>When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

Senior Blockchain Engineer

Apricot

United States

This is a remote position. Our client is building the infrastructure that enables humanitarian organizations to use stablecoins without requiring blockchain expertise. Rather than building another wallet or payment application, we're creating an orchestration layer that connects donors, NGOs, compliance providers, blockchain networks, regulated financial institutions, and local payout providers through a single API. Blockchain is the infrastructure—not the product. Our platform orchestrates the complete payment workflow, including: Funding and treasury management Compliance and sanctions screening On-chain transactions Reporting and audit trails Beneficiary payouts Local off-ramp integrations We integrate best-in-class providers for custody, compliance, blockchain connectivity, and financial settlement instead of replacing existing financial infrastructure. About the Engagement This role begins as a project-based contract focused on delivering key milestones for an upcoming pilot. The initial engagement is deliverables-based, with clearly defined objectives and timelines. Upon successful completion of the pilot and continued platform growth, there is a strong opportunity to transition into a long-term full-time engineering role. You'll work directly with the founding team and Technical Lead, helping shape the architecture and technical direction of the platform. Where the Platform Stands Our MVP is approximately 80% complete. Already Live NGO onboarding and authentication Wallet connectivity Stablecoin payment initiation Compliance screening On-chain transaction execution Current Technology Stack Frontend Next.js React TypeScript Vercel Backend Node.js Supabase PostgreSQL Blockchain WalletConnect USDC Arbitrum Base Note: The pilot network may transition to Stellar, so experience with both EVM and non-EVM ecosystems is highly valuable. What You'll Deliver During the pilot engagement, you'll be responsible for taking the platform from MVP to production. Production Readiness Production hardening and infrastructure improvements Encryption at rest and in transit Role-Based Access Control (RBAC) Comprehensive audit logging Security reviews and penetration testing Platform Development Build and complete several core platform components, including: Off-chain audit records Donor reporting dashboard Treasury workflows Local off-ramp integrations Payment orchestration APIs Blockchain Engineering Develop and integrate secure smart contracts using audited standards such as OpenZeppelin Expand the chain abstraction layer across: Ethereum Stellar Arbitrum Base Tempo Support both EVM and non-EVM blockchain ecosystems Transaction Security Design and implement: Transaction approval workflows Operational guardrails Secure wallet interactions Risk controls Blockchain transaction monitoring (e.g., Chainalysis or similar) Requirements We're looking for a senior engineer with hands-on production experience building blockchain-enabled applications. Strong experience with Node.js TypeScript REST APIs Next.js React Blockchain Ethereum Smart contract development Multi-chain applications EVM ecosystems Wallet infrastructure WalletConnect RPC providers such as Alchemy or QuickNode Security Experience implementing: Encryption RBAC Audit logging Secure key management Production-grade security practices Language Professional working proficiency in Arabic for collaboration with partners and stakeholders across Arabic-speaking operating regions. Originally posted on Himalayas

Are you ready to make an impact at DTCC? br> br>Do you want to work on innovative projects, collaborate with a dynamic and supportive team, and receive investment in your professional development? At DTCC, we are at the forefront of innovation in the financial markets. We are committed to helping our employees grow and succeed. We believe that you have the skills and drive to make a real impact. We foster a thriving internal community and are committed to creating a workplace that looks like the world that we serve. br> br>DTCC Digital Assets is at the forefront of driving institutional adoption of digital assets technology with a steadfast commitment to innovation anchored in security and stability. As the financial services industry s trusted technology partner, we pride ourselves on empowering a globally interconnected and efficient ecosystem. Our mission is to provide secure and compliant infrastructure for digital assets, enabling financial institutions to unlock the full potential of blockchain technology br> br> strong>Pay And Benefits br> br> /strong> ul> li> Competitive compensation, including base pay and annual incentive /li> li> Comprehensive health and life insurance and well-being benefits, based on location /li> li> Pension / Retirement benefits /li> li> Paid Time Off and Personal/Family Care, and other leaves of absence when needed to support your physical, financial, and emotional well-being. /li> li> DTCC offers a flexible/hybrid model of 3 days onsite and 2 days remote (onsite Tuesdays, Wednesdays and a third day unique to each team or employee). br> br> /li> /ul> strong>The Impact You Will Have In This Role br> br> /strong>Being a member of the Digital Assets team, the Senior Rust Smart Contract Engineer will design, develop and maintain production-grade smart contracts for the Stellar blockchain using the Soroban framework and for Solana. The ideal candidate will bring a deep understanding of blockchain technology and smart contract capabilities, along with strong hands-on Rust expertise. You will own smart contract components from design through deployment and ongoing lifecycle management, helping ensure that DTCC s blockchain solutions are secure, efficient, reliable and aligned with the requirements of a regulated financial-services environment. br> br> strong>Your Primary Responsibilities br> br> /strong> ul> li> Design, develop and deploy smart contracts in Rust for Stellar using Soroban and for Solana /li> li> Own smart contract modules from design through deployment and ongoing lifecycle management /li> li> Lead code reviews and contribute to security assessments and audit readiness /li> li> Design and enhance testing strategies, deployment pipelines and reusable contract libraries /li> li> Collaborate cross-functionally to integrate smart contracts with platform and backend services /li> li> Identify, analyze and mitigate smart contract security, reliability and performance risks /li> li> Mentor Associate engineers and promote best practices in Rust and smart contract development /li> li> Participate in incident response and root-cause analysis for smart contract-related issues /li> li> Collaborate with frontend and backend developers to integrate smart contracts with web applications /li> li> Stay current with cryptographic and blockchain advancements to help identify and mitigate potential security threats /li> li> Work closely with product managers and stakeholders to clarify technical requirements and define system architecture /li> li> Share blockchain and smart contract expertise with both technical and nontechnical team members /li> li> Stay current with developments across the blockchain ecosystem and adapt solutions as appropriate br> br> /li> /ul>**NOTE: The Primary Responsibilities of this role are not limited to the details above. ** br> br> strong>Qualifications br> br> /strong> ul> li> Bachelor s degree in Computer Science, Engineering or a related field (preferred), or equivalent practical experience /li> li> 5-7 of professional software engineering experience /li> li> 3+ years of hands-on Rust development experience /li> li> 2+ years of experience developing smart contracts or blockchain-based applications /li> li> Experience developing Rust smart contracts in a production environment /li> li> Strong understanding of blockchain security, distributed systems and cryptographic principles /li> li> Experience with CI/CD pipelines, automated testing and secure software-delivery practices br> br> /li> /ul> strong>Talents Needed For Success br> br> /strong> ul> li> Demonstrated experience performing both manual and automated testing in enterprise software environments /li> li> Experience developing and maintaining automated test frameworks and test suites /li> li> Strong understanding of software development lifecycles, Agile methodologies, and quality engineering practices /li> li> Experience testing REST APIs, web applications, microservices, and distributed systems /li> li> Knowledge of defect tracking, test management, and reporting tools /li> li> Strong analytical, troubleshooting, and problem-solving skills /li> li> Excellent communication and collaboration skills with technical and non-technical stakeholders /li> li> Experience testing blockchain, digital-asset, or distributed-ledger platforms, including smart contracts and on-chain/off-chain transaction workflows /li> li> Experience with permissioned blockchain networks or AppChains; exposure to Hyperledger Besu or comparable enterprise blockchain technology is strongly preferred /li> li> Hands-on experience with modern automation tools such as Playwright, Selenium, Cypress, Postman, or comparable technologies /li> li> Experience working with CI/CD platforms and automated quality gates /li> li> Knowledge of performance, security, and resiliency testing practices br> br> /li> /ul>We offer top class training and development for you to be an asset in our organization! br> br>The salary range is indicative for roles at the same level within DTCC across all US locations. Actual salary is determined based on the role, location, individual experience, skills, and other considerations. We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.When applying, mention the word CANDYSHOP to show you read the job post completely. This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they are human RMTY4LjE0NC44NS4xMzEM

Design, develop, and deploy secure smart contracts and decentralized applications across various blockchain networks. Collaborate with cross-functional teams to build scalable Web3 infrastructure and mentor junior engineers.

About the Role As a Senior Blockchain Engineer at Ondo, you will own the design of our smart contract systems - not just the contracts themselves, but how they're deployed, secured, monitored, and managed across their entire lifetime, and how they connect to the people and products that depend on them. You'll design secure, efficient, and scalable smart contract solutions across many blockchain ecosystems powering Real World Asset (RWA) tokenization. But the harder and more important part of this role is everything around the contract: keeping it secure from deploy through every day it's live, building tooling that lets non-technical teammates safely view and manage on-chain state, and creating automated systems that take manual, error-prone work off the table. You'll think about how a smart contract design decision ripples outward, to the web app, to the teams operating the system day to day, and ultimately to our end users. You'll collaborate with product, legal, compliance, web, and ops to make sure contracts are technically sound, regulatorily aligned, and genuinely operable by the teams who rely on them day to day. Throughout, you'll favor simple, elegant designs that let us move quickly and safely. This is a unique opportunity to shape the future of finance by building the systems that bring real-world assets on-chain, and by making those systems something a whole organization can build on with confidence. Responsibilities Smart Contract System Design: Architect entire smart contract systems for Ondo's evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start. Lifecycle Security & Operations: Own contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve. Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly. Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users. Technical Leadership: Serve as tech lead and subject matter expert for blockchain projects, guiding the engineering team toward high-impact, scalable solutions and making sound technical decisions aligned with long-term goals. Requirements Based in PT, MT, CT, or ET time zones. Excellent technical and non-technical communication skills, verbal and written. Bachelor's degree in Computer Science, Engineering, or a related technical field. 5+ years of software engineering experience. 3+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains. Strong competency with Solidity; exposure to non-EVM smart contract languages a plus — particularly Solana. Demonstrated ability to design systems , not just contracts — including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams. Proven results building and scaling a DeFi protocol. Python and/or TypeScript experience preferred (for building tooling and automation). Strong technical grasp and excellent judgment on task prioritization. Strong emphasis on understanding the "why" behind requirements and a commitment to defining the "minimum scope." What we offer •Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we're well-funded and believe that great talent deserves great compensation. •Full benefits (medical, vision, and dental) and flexible vacation policy (PTO). •Small remote-first team across many countries — you'll be an early team member helping shape our vision, culture, and design practices. •A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, McKinsey, Circle, Uniswap. •Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures.

Senior Blockchain Engineer

Ondo Finance

United States

About the Role As a Senior Blockchain Engineer at Ondo, you will own the design of our smart contract systems - not just the contracts themselves, but how they're deployed, secured, monitored, and managed across their entire lifetime, and how they connect to the people and products that depend on them. You'll design secure, efficient, and scalable smart contract solutions across many blockchain ecosystems powering Real World Asset (RWA) tokenization. But the harder and more important part of this role is everything around the contract: keeping it secure from deploy through every day it's live, building tooling that lets non-technical teammates safely view and manage on-chain state, and creating automated systems that take manual, error-prone work off the table. You'll think about how a smart contract design decision ripples outward, to the web app, to the teams operating the system day to day, and ultimately to our end users. You'll collaborate with product, legal, compliance, web, and ops to make sure contracts are technically sound, regulatorily aligned, and genuinely operable by the teams who rely on them day to day. Throughout, you'll favor simple, elegant designs that let us move quickly and safely. This is a unique opportunity to shape the future of finance by building the systems that bring real-world assets on-chain, and by making those systems something a whole organization can build on with confidence. Responsibilities Smart Contract System Design: Architect entire smart contract systems for Ondo's evolving product suite — covering new chain deployments, novel DeFi interoperability and bridging solutions, and DeFi protocols — with security, operability, and long-term maintainability designed in from the start. Lifecycle Security & Operations: Own contract security not just at deploy but across the full lifetime of the system — including upgrade safety, administrative controls, and the operational guardrails that keep things safe as they evolve. Tooling & Automation: Build tooling and automated systems that let non-technical teammates safely view, monitor, and manage contracts without writing scripts or touching raw chain operations directly. Cross-Functional Integration: Connect smart contract design to the rest of the product — helping the web team integrate cleanly, helping operational teams monitor and manage without direct scripting, and ensuring design decisions flow sensibly through to end users. Technical Leadership: Serve as tech lead and subject matter expert for blockchain projects, guiding the engineering team toward high-impact, scalable solutions and making sound technical decisions aligned with long-term goals. Requirements Based in PT, MT, CT, or ET time zones. Excellent technical and non-technical communication skills, verbal and written. Bachelor's degree in Computer Science, Engineering, or a related technical field. 5+ years of software engineering experience. 3+ years in blockchain engineering, ideally from another DeFi protocol live on multiple chains. Strong competency with Solidity; exposure to non-EVM smart contract languages a plus — particularly Solana. Demonstrated ability to design systems, not just contracts — including tooling, automation, security across the contract lifecycle, and the integration points between contracts, applications, and operational teams. Proven results building and scaling a DeFi protocol. Python and/or TypeScript experience preferred (for building tooling and automation). Strong technical grasp and excellent judgment on task prioritization. Strong emphasis on understanding the "why" behind requirements and a commitment to defining the "minimum scope." What we offer •Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we're well-funded and believe that great talent deserves great compensation. •Full benefits (medical, vision, and dental) and flexible vacation policy (PTO). •Small remote-first team across many countries — you'll be an early team member helping shape our vision, culture, and design practices. •A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, McKinsey, Circle, Uniswap. •Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures. Originally posted on Himalayas

About the Job zerohash is looking for a Senior Blockchain Engineer to help architect and build the infrastructure that powers digital asset transactions across multiple blockchain networks. We are a high-performing team looking for an equally ambitious and driven teammate. The right candidate for this position is detail-oriented, deeply technical, and driven. You are eager to learn new technologies and complex systems. You build resiliency and scalability into the platform at every step. If you're looking to have a massive impact in one of the most exciting markets in decades, you will find this role challenging and rewarding in equal measure Key Responsibilities + Design and build blockchain integration services — transaction signing, deposit processing, and confirmation tracking — across multiple networks (EVM, Solana, Polkadot, XRP, and others) + Build and maintain gRPC microservices in Go within an event-driven architecture using NATS JetStream + Implement transaction state machines with reliability guarantees including idempotency, distributed locking, and chain reorganization handling + Integrate with custody providers for secure transaction signing and wallet management + Monitor blockchain networks for deposits, confirmations, and anomalies + Participate in on-call rotation, responding to production incidents across blockchain infrastructure + When necessary, communicate directly with client technical teams Requirements + 5+ years of software engineering experience, preferably in the FinTech space + Deep proficiency with Go + Understanding of blockchain technologies, protocols, and their applications + Experience with gRPC and Protocol Buffers + Familiarity with message brokers or event streaming systems (NATS, Kafka, or similar) + Experience with MongoDB or other document databases + Understanding of SQL and relational database schema design + A humble and scrappy get-it-done mindset; you're resourceful and in your element going from 0 to 1 + Excellent problem solving skills — can troubleshoot complex distributed systems + Comfort with ambiguity; the ability to independently lay out and test clear hypotheses and solve problems without well-defined direction + Excellent verbal and written communication skills Preferred + Bachelor's in computer science or equivalent experience + Experience at a banking-as-a-service, brokerage-as-a-service, or payment-as-a-service business + Experience with digital assets or centralized exchanges + Experience integrating with blockchain custody platforms (Fireblocks, BitGo, or similar) + Experience with distributed systems patterns (distributed locking, idempotency, state machines, CQRS) + Experience with smart contracts + Familiarity with Kubernetes and observability tooling (Prometheus, Grafana, OpenTelemetry) About zerohash zerohash is the leading crypto and stablecoin infrastructure platform and the operating system for digital money, powering the next generation of financial services. Founded in 2017, zerohash enables banks, brokerages, fintechs, and payment companies to offer crypto trading, stablecoin payments, and tokenized assets without having to build or manage complex blockchain infrastructure on their own. The zerohash platform supports three core pillars: Trade, Transact, and Tokenize. Through a single integration, customers can launch regulated crypto buy, sell, and custody services; enable 24/7 stablecoin-based funding, payouts, and settlement; and issue and manage tokenized assets with built-in compliance, risk controls, and reporting. By abstracting away technical, regulatory, and operational complexity, zerohash allows partners to treat digital assets as just another financial primitive: fast, programmable, and global. zerohash is trusted by some of the world's most recognized financial and consumer brands, including Interactive Brokers, Morgan Stanley, Stripe, Franklin Templeton, BlackRock, DraftKings, Gusto, Worldpay, Kalshi, One Pay, among others. Today, zero infrastructure supports millions of end users across brokerage, wealth, payments, and marketplace platforms globally. The company is deeply regulated and compliance-first, operating across the U.S. and internationally with licenses and approvals that allow partners to enter crypto and stablecoins with confidence. zerohash has become a trusted partner for enterprises seeking to modernize financial products while meeting the highest standards for security, risk management, and regulatory oversight. To date, zerohash has raised over $280 million in funding from a mix of leading venture firms and strategic investors, including Morgan Stanley, Interactive Brokers, SoFi, Point72 Ventures, Bain Capital Crypto, Lightspeed Venture Partners, and more. zerohash has been featured in top-tier media outlets such as Bloomberg, CNBC, The Wall Street Journal, Financial Times, Reuters, Forbes, and CoinDesk, and its leadership team regularly contributes to global conversations on the future of payments, investing, and financial infrastructure. At zerohash, we're building the infrastructure that makes digital money work securely, compliantly, and at global scale. The zerohash Culture All zerohash employees are guided by the following characteristics and core principles: + Independence/Ownership - An ability to work autonomously. Join zerohash, pitch ideas, and shape the work you do. + Passion - We are innovating quickly and challenging the status quo. We want you to think big, be creative and ​make a difference every day. + Collaborative - A good attitude and respect for others. We're teammates, not co-workers. Everything we do is a shared success and equally a shared failure - we talk in terms of “we” not “me”. + Initiative - An ability and passion for learning and asking questions. We will champion you, challenge you and push you to achieve your best - and we expect you to do the same. + Empathy - An ability to listen, respect, and understand your co-workers, customers, and everyone you interact with no matter how different they are to you. + Adaptability - An ability to respond quickly. We are in a fast-paced industry and so we expect you to be creative when solving a new problem and comfortable under pressure. + Transparency - We believe that transparency is critical to empowering everyone to make the best decisions, both the company to its people and vice versa. + Integrity - Integrity creates trust. As both an organization collectively and as individuals, it is our most valuable asset. Follow us Twitter (https://twitter.com/ZeroHashX) LinkedIn (https://www.linkedin.com/company/zerohash) Youtube (https://www.youtube.com/channel/UC8HvrzcqzbusQYyfzctl\_VA) For candidates based in Colorado, please contact colorado-wages @zerohash.com to request compensation and benefits information regarding a particular role(s). Please include with your email the city you reside (or intend to reside in Colorado) and the title/link to the roles you're interested in. **We've recently seen an increase in individuals impersonating zerohash recruiters to target job seekers. Please stay vigilant and keep the following in mind to ensure you are communicating with the real zerohash team: + Verified Emails Only: Official outreach will only come from a @zerohash.com email address. + No Messaging Apps: We will never contact you via unsolicited text messages, WhatsApp, or Telegram. + Official Applications: Only apply directly through our careers webpage (zerohash.com/careers) or zero-hash.breezy.hr. See something suspicious? If you want to verify an interview request or report a fake job posting or suspicious communication, please contact us immediately at talent @zerohash.com.

About the Job zerohash is looking for a Senior Blockchain Engineer to help architect and build the infrastructure that powers digital asset transactions across multiple blockchain networks. We are a high-performing team looking for an equally ambitious and driven teammate. The right candidate for this position is detail-oriented, deeply technical, and driven. You are eager to learn new technologies and complex systems. You build resiliency and scalability into the platform at every step. If you're looking to have a massive impact in one of the most exciting markets in decades, you will find this role challenging and rewarding in equal measure Key Responsibilities + Design and build blockchain integration services — transaction signing, deposit processing, and confirmation tracking — across multiple networks (EVM, Solana, Polkadot, XRP, and others) + Build and maintain gRPC microservices in Go within an event-driven architecture using NATS JetStream + Implement transaction state machines with reliability guarantees including idempotency, distributed locking, and chain reorganization handling + Integrate with custody providers for secure transaction signing and wallet management + Monitor blockchain networks for deposits, confirmations, and anomalies + Participate in on-call rotation, responding to production incidents across blockchain infrastructure + When necessary, communicate directly with client technical teams Requirements + 5+ years of software engineering experience, preferably in the FinTech space + Deep proficiency with Go + Understanding of blockchain technologies, protocols, and their applications + Experience with gRPC and Protocol Buffers + Familiarity with message brokers or event streaming systems (NATS, Kafka, or similar) + Experience with MongoDB or other document databases + Understanding of SQL and relational database schema design + A humble and scrappy get-it-done mindset; you're resourceful and in your element going from 0 to 1 + Excellent problem solving skills — can troubleshoot complex distributed systems + Comfort with ambiguity; the ability to independently lay out and test clear hypotheses and solve problems without well-defined direction + Excellent verbal and written communication skills Preferred + Bachelor's in computer science or equivalent experience + Experience at a banking-as-a-service, brokerage-as-a-service, or payment-as-a-service business + Experience with digital assets or centralized exchanges + Experience integrating with blockchain custody platforms (Fireblocks, BitGo, or similar) + Experience with distributed systems patterns (distributed locking, idempotency, state machines, CQRS) + Experience with smart contracts + Familiarity with Kubernetes and observability tooling (Prometheus, Grafana, OpenTelemetry) About zerohash zerohash is the leading crypto and stablecoin infrastructure platform and the operating system for digital money, powering the next generation of financial services. Founded in 2017, zerohash enables banks, brokerages, fintechs, and payment companies to offer crypto trading, stablecoin payments, and tokenized assets without having to build or manage complex blockchain infrastructure on their own. The zerohash platform supports three core pillars: Trade, Transact, and Tokenize. Through a single integration, customers can launch regulated crypto buy, sell, and custody services; enable 24/7 stablecoin-based funding, payouts, and settlement; and issue and manage tokenized assets with built-in compliance, risk controls, and reporting. By abstracting away technical, regulatory, and operational complexity, zerohash allows partners to treat digital assets as just another financial primitive: fast, programmable, and global. zerohash is trusted by some of the world's most recognized financial and consumer brands, including Interactive Brokers, Morgan Stanley, Stripe, Franklin Templeton, BlackRock, DraftKings, Gusto, Worldpay, Kalshi, One Pay, among others. Today, zero infrastructure supports millions of end users across brokerage, wealth, payments, and marketplace platforms globally. The company is deeply regulated and compliance-first, operating across the U.S. and internationally with licenses and approvals that allow partners to enter crypto and stablecoins with confidence. zerohash has become a trusted partner for enterprises seeking to modernize financial products while meeting the highest standards for security, risk management, and regulatory oversight. To date, zerohash has raised over $280 million in funding from a mix of leading venture firms and strategic investors, including Morgan Stanley, Interactive Brokers, SoFi, Point72 Ventures, Bain Capital Crypto, Lightspeed Venture Partners, and more. zerohash has been featured in top-tier media outlets such as Bloomberg, CNBC, The Wall Street Journal, Financial Times, Reuters, Forbes, and CoinDesk, and its leadership team regularly contributes to global conversations on the future of payments, investing, and financial infrastructure. At zerohash, we're building the infrastructure that makes digital money work securely, compliantly, and at global scale. The zerohash Culture All zerohash employees are guided by the following characteristics and core principles: + Independence/Ownership - An ability to work autonomously. Join zerohash, pitch ideas, and shape the work you do. + Passion - We are innovating quickly and challenging the status quo. We want you to think big, be creative and ​make a difference every day. + Collaborative - A good attitude and respect for others. We're teammates, not co-workers. Everything we do is a shared success and equally a shared failure - we talk in terms of “we” not “me”. + Initiative - An ability and passion for learning and asking questions. We will champion you, challenge you and push you to achieve your best - and we expect you to do the same. + Empathy - An ability to listen, respect, and understand your co-workers, customers, and everyone you interact with no matter how different they are to you. + Adaptability - An ability to respond quickly. We are in a fast-paced industry and so we expect you to be creative when solving a new problem and comfortable under pressure. + Transparency - We believe that transparency is critical to empowering everyone to make the best decisions, both the company to its people and vice versa. + Integrity - Integrity creates trust. As both an organization collectively and as individuals, it is our most valuable asset. Follow us Twitter (https://twitter.com/ZeroHashX) LinkedIn (https://www.linkedin.com/company/zerohash) Youtube (https://www.youtube.com/channel/UC8HvrzcqzbusQYyfzctl\_VA) For candidates based in Colorado, please contact colorado-wages @zerohash.com to request compensation and benefits information regarding a particular role(s). Please include with your email the city you reside (or intend to reside in Colorado) and the title/link to the roles you're interested in. **We've recently seen an increase in individuals impersonating zerohash recruiters to target job seekers. Please stay vigilant and keep the following in mind to ensure you are communicating with the real zerohash team: + Verified Emails Only: Official outreach will only come from a @zerohash.com email address. + No Messaging Apps: We will never contact you via unsolicited text messages, WhatsApp, or Telegram. + Official Applications: Only apply directly through our careers webpage (zerohash.com/careers) or zero-hash.breezy.hr. See something suspicious? If you want to verify an interview request or report a fake job posting or suspicious communication, please contact us immediately at talent @zerohash.com.