Blockchain Developer Jobs

Blockchain Developer

Bright Vision Technologies

Austin NW / Domain, TX 78759

Blockchain Developer – Remote Bright Vision Technologies is a technology consulting and software development company delivering cloud, AI, data, and enterprise solutions across the United States. This is a fantastic opportunity to join an established and well-respected organization offering tremendous career growth potential. Job Title: Blockchain Developer Location: 100% Remote (U.S.) Position Type: Full-time, Direct W2 Salary Range: $140,000–$200,000 Annually Experience Required: 6+ years Sponsorship: U.S. Citizens, Green Card Holders, EAD Holders, and H-1B transfer candidates are encouraged to apply. We are unable to sponsor new H-1B visa petitions for this position. Job Summary We are seeking an experienced Blockchain Developer to design, build, and maintain enterprise-grade decentralized applications (dApps), smart contract platforms, and blockchain-integrated backend services supporting financial services, digital asset management, and enterprise transaction processing. This role focuses on building secure, scalable blockchain solutions that integrate seamlessly with cloud-native microservices and traditional enterprise applications. You will work closely with solution architects, security engineers, DevOps teams, and product owners to develop smart contracts, blockchain APIs, digital wallet integrations, tokenization platforms, and secure transaction processing systems. The ideal candidate possesses deep expertise in blockchain protocols, smart contract development, distributed systems, and cloud infrastructure while maintaining strong software engineering fundamentals. Key Responsibilities Design and develop secure smart contracts for enterprise blockchain applications using Solidity or other smart contract languages. Build scalable backend services that interact with blockchain networks for transaction processing, asset management, and identity verification. Develop RESTful and GraphQL APIs to expose blockchain functionality to web and mobile applications. Design blockchain data models, token standards, and transaction workflows for high-volume enterprise systems. Integrate enterprise applications with Ethereum, Hyperledger Fabric, Polygon, Avalanche, or other blockchain platforms. Develop secure wallet integrations, digital signature workflows, and key management solutions. Implement blockchain event listeners, indexing services, and off-chain processing components. Build scalable microservices using .NET Core, Java, or Node.js that interact with blockchain networks. Optimize smart contracts for gas efficiency, scalability, and transaction throughput. Perform smart contract audits, security testing, and vulnerability assessments before production deployments. Collaborate with DevOps teams to deploy blockchain infrastructure across Azure or AWS cloud environments. Participate in architectural reviews, code reviews, technical design sessions, and production support activities. Troubleshoot complex blockchain network issues, transaction failures, synchronization problems, and production incidents. Required Skills Six or more years of professional software development experience building enterprise-grade distributed applications. Three or more years of hands-on blockchain development experience delivering production blockchain solutions. Strong experience developing smart contracts using Solidity and Ethereum Virtual Machine (EVM)-compatible networks. Hands-on experience with blockchain platforms such as Ethereum, Hyperledger Fabric, Polygon, Avalanche, Binance Smart Chain, or Quorum. Strong proficiency in JavaScript/TypeScript with Node.js or backend development using C#/.NET Core or Java. Experience building decentralized applications (dApps) with React, Angular, or Vue.js. Strong understanding of blockchain architecture, consensus algorithms, cryptographic hashing, digital signatures, Merkle trees, and distributed ledger concepts. Experience implementing ERC-20, ERC-721, ERC-1155, or custom token standards. Experience integrating wallets such as MetaMask, WalletConnect, Coinbase Wallet, or enterprise custody platforms. Strong experience with REST APIs, GraphQL APIs, WebSockets, and blockchain RPC interfaces. Experience working with SQL and NoSQL databases including PostgreSQL, SQL Server, MongoDB, or Redis. Hands-on experience with Git, CI/CD pipelines, automated deployments, and release management. Experience deploying applications on Azure or AWS cloud platforms. Strong debugging, performance optimization, and troubleshooting skills in production environments. Experience working within Agile Scrum development teams. Preferred Qualifications Experience designing enterprise blockchain solutions for financial services, healthcare, insurance, or supply chain industries. Hands-on experience with Hyperledger Fabric chaincode development using Go or Java. Experience with Layer-2 scaling solutions including Polygon, Arbitrum, or Optimism. Familiarity with Zero-Knowledge Proofs (ZKP), Multi-Party Computation (MPC), or privacy-preserving blockchain technologies. Experience implementing decentralized identity (DID) and Verifiable Credentials (VC). Knowledge of blockchain security standards, smart contract auditing tools, and common vulnerabilities such as reentrancy, overflow, front-running, and flash loan attacks. Experience using Hardhat, Foundry, Truffle, Ganache, Brownie, or Remix IDE. Familiarity with Docker, Kubernetes, Terraform, and Infrastructure as Code. Experience integrating blockchain applications with enterprise identity providers including Azure Active Directory or OAuth. Blockchain certifications or contributions to open-source blockchain projects are highly desirable. Project Environment You will be joining a team building a next-generation enterprise blockchain platform supporting: Digital asset tokenization and lifecycle management Smart contract-driven business workflows Enterprise wallet and digital identity integration Real-time blockchain event processing Secure multi-signature transaction approval systems Blockchain analytics and reporting dashboards Cloud-native microservices deployed on Azure and AWS High-availability distributed systems supporting millions of secure transactions annually This is a hands-on engineering role where you'll contribute to architecture, development, deployment, security, and operational excellence across mission-critical blockchain solutions. How to Apply Would you like to know more about this opportunity? For immediate consideration, please send your resume to Harry@bvteck.com or contact us at (908) 676-4399 . Learn more about Bright Vision Technologies at www.bvteck.com . Bright Vision Technologies is an Equal Opportunity Employer. Equal Employment Opportunity (EEO) Statement 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. 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.

Blockchain Developer

Bright Vision Technologies

Austin NW / Domain, TX 78750

Blockchain Developer – Remote Bright Vision Technologies is a technology consulting and software development company delivering cloud, AI, data, and enterprise solutions across the United States. This is a fantastic opportunity to join an established and well-respected organization offering tremendous career growth potential. Job Title: Blockchain Developer Location: 100% Remote (U.S.) Position Type: Full-time, Direct W2 Salary Range: $140,000–$200,000 Annually Experience Required: 6+ years Sponsorship: U.S. Citizens, Green Card Holders, EAD Holders, and H-1B transfer candidates are encouraged to apply. We are unable to sponsor new H-1B visa petitions for this position. Job Summary We are seeking an experienced Blockchain Developer to design, build, and maintain enterprise-grade decentralized applications (dApps), smart contract platforms, and blockchain-integrated backend services supporting financial services, digital asset management, and enterprise transaction processing. This role focuses on building secure, scalable blockchain solutions that integrate seamlessly with cloud-native microservices and traditional enterprise applications. You will work closely with solution architects, security engineers, DevOps teams, and product owners to develop smart contracts, blockchain APIs, digital wallet integrations, tokenization platforms, and secure transaction processing systems. The ideal candidate possesses deep expertise in blockchain protocols, smart contract development, distributed systems, and cloud infrastructure while maintaining strong software engineering fundamentals. Key Responsibilities Design and develop secure smart contracts for enterprise blockchain applications using Solidity or other smart contract languages. Build scalable backend services that interact with blockchain networks for transaction processing, asset management, and identity verification. Develop RESTful and GraphQL APIs to expose blockchain functionality to web and mobile applications. Design blockchain data models, token standards, and transaction workflows for high-volume enterprise systems. Integrate enterprise applications with Ethereum, Hyperledger Fabric, Polygon, Avalanche, or other blockchain platforms. Develop secure wallet integrations, digital signature workflows, and key management solutions. Implement blockchain event listeners, indexing services, and off-chain processing components. Build scalable microservices using .NET Core, Java, or Node.js that interact with blockchain networks. Optimize smart contracts for gas efficiency, scalability, and transaction throughput. Perform smart contract audits, security testing, and vulnerability assessments before production deployments. Collaborate with DevOps teams to deploy blockchain infrastructure across Azure or AWS cloud environments. Participate in architectural reviews, code reviews, technical design sessions, and production support activities. Troubleshoot complex blockchain network issues, transaction failures, synchronization problems, and production incidents. Required Skills Six or more years of professional software development experience building enterprise-grade distributed applications. Three or more years of hands-on blockchain development experience delivering production blockchain solutions. Strong experience developing smart contracts using Solidity and Ethereum Virtual Machine (EVM)-compatible networks. Hands-on experience with blockchain platforms such as Ethereum, Hyperledger Fabric, Polygon, Avalanche, Binance Smart Chain, or Quorum. Strong proficiency in JavaScript/TypeScript with Node.js or backend development using C#/.NET Core or Java. Experience building decentralized applications (dApps) with React, Angular, or Vue.js. Strong understanding of blockchain architecture, consensus algorithms, cryptographic hashing, digital signatures, Merkle trees, and distributed ledger concepts. Experience implementing ERC-20, ERC-721, ERC-1155, or custom token standards. Experience integrating wallets such as MetaMask, WalletConnect, Coinbase Wallet, or enterprise custody platforms. Strong experience with REST APIs, GraphQL APIs, WebSockets, and blockchain RPC interfaces. Experience working with SQL and NoSQL databases including PostgreSQL, SQL Server, MongoDB, or Redis. Hands-on experience with Git, CI/CD pipelines, automated deployments, and release management. Experience deploying applications on Azure or AWS cloud platforms. Strong debugging, performance optimization, and troubleshooting skills in production environments. Experience working within Agile Scrum development teams. Preferred Qualifications Experience designing enterprise blockchain solutions for financial services, healthcare, insurance, or supply chain industries. Hands-on experience with Hyperledger Fabric chaincode development using Go or Java. Experience with Layer-2 scaling solutions including Polygon, Arbitrum, or Optimism. Familiarity with Zero-Knowledge Proofs (ZKP), Multi-Party Computation (MPC), or privacy-preserving blockchain technologies. Experience implementing decentralized identity (DID) and Verifiable Credentials (VC). Knowledge of blockchain security standards, smart contract auditing tools, and common vulnerabilities such as reentrancy, overflow, front-running, and flash loan attacks. Experience using Hardhat, Foundry, Truffle, Ganache, Brownie, or Remix IDE. Familiarity with Docker, Kubernetes, Terraform, and Infrastructure as Code. Experience integrating blockchain applications with enterprise identity providers including Azure Active Directory or OAuth. Blockchain certifications or contributions to open-source blockchain projects are highly desirable. Project Environment You will be joining a team building a next-generation enterprise blockchain platform supporting: Digital asset tokenization and lifecycle management Smart contract-driven business workflows Enterprise wallet and digital identity integration Real-time blockchain event processing Secure multi-signature transaction approval systems Blockchain analytics and reporting dashboards Cloud-native microservices deployed on Azure and AWS High-availability distributed systems supporting millions of secure transactions annually This is a hands-on engineering role where you'll contribute to architecture, development, deployment, security, and operational excellence across mission-critical blockchain solutions. How to Apply Would you like to know more about this opportunity? For immediate consideration, please send your resume to Harry@bvteck.com or contact us at (908) 676-4399 . Learn more about Bright Vision Technologies at www.bvteck.com . Bright Vision Technologies is an Equal Opportunity Employer. Equal Employment Opportunity (EEO) Statement 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. 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.

Description One More Game is a fully remote startup dedicated to creating engaging online games. Our team is composed of industry veterans who have played pivotal roles in developing genre-defining titles such as Warcraft, Diablo, StarCraft, and Guild Wars, games that collectively have been enjoyed for tens of billions of hours globally. Our mission is to help players have more fun by pushing the boundaries of gaming experiences through innovative technologies. We are currently seeking a Senior Blockchain Engineer specializing in Web3 and GameFi to join our dynamic and passionate team. In this role, you will have the unique opportunity to blend blockchain technology with immersive gaming, creating new ways for players to interact, own, and trade digital assets within our games. You will work closely with game designers, developers, and other stakeholders to architect, develop, and deploy scalable blockchain solutions that enhance game mechanics and player engagement. If you are excited about the intersection of blockchain and gaming and want to help shape the future of GameFi, One More Game provides a collaborative, fully remote environment where your expertise will directly impact millions of players worldwide. Requirements Proven experience as a Blockchain Engineer, preferably within the gaming industry or Web3/GameFi projects. Strong proficiency in smart contract development using Solidity, Rust, or similar languages. Deep understanding of blockchain protocols (e.g., Ethereum, Polygon, Binance Smart Chain) and decentralized applications (dApps). Familiarity with NFT standards (ERC-721, ERC-1155) and managing token economics in gaming contexts. Experience with integrating blockchain backends into frontend applications or game engines. Solid programming skills in languages such as JavaScript, TypeScript, or Python for blockchain interaction and tooling. Excellent problem-solving skills, communication abilities, and a passion for gaming and emerging technologies. Benefits Health Care Plan (Medical, Dental & Vision) Paid Time Off (Vacation, Sick & Public Holidays) Short Term & Long Term Disability Training & Development Work From Home Stock Option Plan

This is a remote position. ​ Verso is looking for an engineer who is excited to bring embedded finance to millions of wallets across the globe. Your role as a Blockchain Engineer is to make new blockchains accessible to the millions of users who use our wallet to secure and exchange their crypto assets. We are looking for a JavaScript engineer who is excited about the crypto ecosystem and self-motivated enough to bring new assets into our wallets. What You Will Do Research the blockchain technicals that underpin new assets and discover ways to integrate them into our Desktop and Mobile wallets. Work cross functionally with our DevOps team to configure full node software. Write indexing services in javascript that interface with the asset’s full node. Modify front-end React.js components in our wallets in order to support the asset. Implement or use 3rd-party libraries for asset signing and transaction creation. Work with the UX designers to implement UX edge cases specific to each asset. Improve the testability, quality, & automation of our applications. Work with external staking providers to implement staking functionality for relevant assets. Improve exchange transaction success rates. Framework and Languages JavaScript Ethereum SDKs (web3.js, ethers.js) Node.js REST / GraphQL PostgreSQL Smart contract auditing tools (MythX, other) Requirements Experience with crypto and blockchain technology is a requirement. We are looking for someone who is curious about all of crypto and excited about the space collectively, not just one asset or chain. Excellent debugging skills. Your first responsibility will be working across a number of existing assets in order to get failed exchange transactions as close to zero as possible. Self-motivated, well organized, and an excellent communicator - both written and verbal. Able to unblock themselves in a largely asynchronous work environment. Experience with React or ReactNative. Experience of Solidity smart contract development. Experience developing, deploying and running Dapps/smart contracts on Ethereum Mainnet or EVM compatible blockchain. Sound understanding of Javascript asynchronous patterns such as async/await, promises, & observables. Sound understanding of Javascript data structures and sorting algorithms. Experience with Node servers & API management. Gets excited about tests and code quality. Embraces typing supersets in Javascript. (Typescript, Flow) Basic understanding of cryptographic primitives like hashing, macs, PK-crypto, and signing. Helpful and willing to offer assistance to other team members within the company. Benefits ​ About Verso Verso is built for the regulated financial service industry and bridges the gap between traditional finance (CeFi) and DeFi by standardising how financial products get distributed and connected to consumers via e-wallets, banks, and payment networks. Freedom to work wherever you want, whenever you want. Building the future. Cryptocurrencies lay the foundation to the internet of value, the next major wave in application technology and personal finance. Collaborative and feedback-driven culture. Opportunity to grow. Fair pay, no matter where you live along with a competitive benefits package 100% pay in Bitcoin with a buffer to account for price changes and exchange fees. Originally posted on Himalayas

p> strong>Blockchain Developer /strong> /p> p> strong>Jersey City, NJ /strong> /p> p> br> /p> ul> li>Design network architecture and overall system rules /li> li>Build consensus protocols to validate data safely /li> li>Set up security patterns and protect nodes from threats /li> li>Supervise and maintain the health of the live network /li> li>Write smart contracts using code that runs automatically on platforms like Ethereum /li> li>Build decentralized apps dApps that let users interact with the blockchain Test and audit code to find bugs and prevent hacks /li> li>Connect frontend web interfaces with backend blockchain data /li> /ul> p> br> /p> p>Skills /p> p> br> /p> p> strong>Mandatory Skills : /strong>Blockchain /p> p> br> /p> p>A little about us... /p> p>LTIMindtree is an equal opportunity employer that is committed to diversity in the workplace. Our employment decisions are made without regard to race, color, creed, religion, sex (including pregnancy, childbirth or related medical conditions), gender identity or expression, national origin, ancestry, age, family-care status, veteran status, marital status, civil union status, domestic partnership status, military service, handicap or disability or history of handicap or disability, genetic information, atypical hereditary cellular or blood trait, union affiliation, affectional or sexual orientation or preference, or any other characteristic protected by applicable federal, state, or local law, except where such considerations are bona fide occupational qualifications permitted by law. /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

Python Blockchain Developer

Madiff

United States

This is a remote position. We are seeking skilledBackend Developersto join our engineering team focused on building and scaling a backend platform that interacts with blockchain protocols and high-throughput data pipelines. This role involves developing robust services in Python, managing cloud infrastructure, and supporting data storage and processing across both structured and unstructured datasets. Responsibilities Develop scalable and performant backend services usingadvanced Python, includingasyncioandFastAPI Integrate withSQLandNoSQLdatabases, primarilyMongoDB Build, test, and deploy services inDockerized environments Manage version control workflows usingGit-based repositories Ensure the quality and performance of backend logic incloud-based deployments Collaborate closely withfrontend,DevOps, anddata engineeringteams Requirements Proven, hands-on experience inadvanced Python development Strong knowledge ofasynchronous programming models(asyncio, async/await) Proficiency inDockercontainerization and deployment Experience withMongoDBand data modeling for NoSQL solutions Comfortable withGitworkflows and team-based version control Familiarity withAzure Cloud Services(e.g., Azure Functions, Blob Storage, Networking) Proficient inEnglish(minimumB2 level) Nice to have: Understanding of cryptocurrencies and blockchain protocols (e.g. bitcoin, ethereum, layer 2 solutions) Experience building or integrating with smart contracts and decentralised systems Experience with typescript or node.js (for integration and service orchestration) Exposure to apache spark or databricks for data processing tasks Benefits Solid, competitive salary. Work in multilingual, multinational and multicultural environment on international projects Medical care Originally posted on Himalayas

strong>NOW HIRING: BLOCKCHAIN DEVELOPER CITI BANK br> br> /strong> strong>Client: /strong> Citi Bank br> br> strong>Location: /strong> New York, NY / Jersey City, NJ br> br> strong>Position Type: /strong> Full-Time br> br> strong>Experience: /strong> 10+ Years br> br> strong>Role Overview br> br> /strong>Seeking an experienced strong>Blockchain Developer /strong> to design, develop, and deploy Web3 components and integrations for Citi s strong>Digital Asset Platform /strong>, including smart contracts, blockchain integrations, wallet solutions, and digital asset infrastructure. br> br> strong>Must-have Skills br> br> /strong> strong>Blockchain / Web3 Development br> br> /strong> strong>Solidity Smart Contracts br> br> /strong>Ethereum / Hyperledger Besu / Corda or equivalent br> br> strong>Java / Spring or Node.js br> br> /strong>Web3J / Web3JS / Ethers.js / Viem br> br>Smart Contract Testing strong>Hardhat / Foundry / Truffle br> br> /strong>Blockchain Fundamentals Consensus, Transactions, Gas & Wallet Infrastructure br> br> strong>ERC-20 / ERC-721 / ERC-1155 / ERC-3525 br> br> /strong>Event-Driven Architecture / Asynchronous Programming br> br> strong>Kafka / RabbitMQ br> br> /strong>Docker / Kubernetes / CI/CD br> br>Cryptography Digital Signatures, Hashing, PKI & Key Management br> br>Git / Jira / Jenkins / Helm br> br> strong>Preferred / Plus Skills br> br> /strong>Hyperledger Besu / Fabric / Corda / R3 br> br>Layer 2 Polygon / Optimism / zkSync br> br>Cross-Chain Interoperability br> br>Digital Asset Custody br> br>Tokenization / DeFi / TradFi br> br>Financial Services / Regulated Industry Experience br> br>Agile / Scrum br> br> strong>Key Responsibilities br> br> /strong>Build and integrate strong>Web3 components, smart contracts and blockchain protocols /strong>. br> br>Develop backend services connecting to public and permissioned blockchain networks. br> br>Build, test and audit secure and gas-efficient smart contracts. br> br>Implement event-driven architectures for on-chain events and transaction lifecycle management. br> br>Support digital asset custody, tokenization and DeFi/TradFi integrations. br> br>Collaborate with architects and senior engineers on scalable and secure Web3 infrastructure. br> br>Participate in code reviews, testing, documentation and Agile/Scrum delivery. br> br> strong> IDEAL CANDIDATE br> br> /strong>Strong Web3 engineering and backend development background br> br>Strong security mindset and knowledge of smart contract vulnerabilities br> br>Excellent problem-solving and communication skills br> br>Strong understanding of APIs, microservices, data structures and design patterns br> br>Ability to work effectively with global, distributed engineering teams br> br> strong>SEND RESUME br> br> /strong> strong>rachael@sidramtech.com br> br> /strong> strong>Please Share Your br> br> /strong>Updated Resume br> br>Work Authorization br> br>Current Location br> br>Availability br> br>Contact Details br> br> strong>Follow Sidram Technologies /strong> for daily strong>US IT jobs, Full-Time & Contract opportunities, interview tips, and hiring updates. br> br> /strong>#Hiring #BlockchainDeveloper #BlockchainJobs #Web3 #Web3Developer #BlockchainEngineer #Solidity #SmartContracts #Ethereum #Hyperledger #Corda #Web3J #EthersJS #Viem #Hardhat #Foundry #JavaDeveloper #SpringBoot #NodeJS #Kafka #Docker #Kubernetes #CICD #DigitalAssets #Tokenization #DeFi #FinTech #FinancialServices #CitiBank #NewYorkJobs #NYCJobs #JerseyCityJobs #NewJerseyJobs #FullTimeJobs #TechJobs #SidramTechnologiesWhen 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

Category: IT Services Location: Colombo Western Province Sri Lanka We are urgently looking for a REMOTE Senior Fullstack Developer - Blockchain Environment for an international Blockchain organization in Australia/NZ. Candidates need to be fluent in English. Candidates need to be able to work 4-5 hours per day in the normal office hours of Australia/NZ. The technical team are experts in designing, developing, deploying, and maintaining products built on the PL^G Blockchain framework, the NodeJS runtime, React and other relevant technologies. The teams are critical in delivering our platform and products. Tasks and responsibilities: Develop software to meet agreed technical and design specifications to a high-quality and maintaining the Platform Components, with little supervision; Developing with other technologies where necessary and reasonable to achieve the company mission; Contribute to business requirements and technical specification documents; Make contributions to product architecture; Effectively review other developers’ code; Thoroughly test software and logs defects including - Unit Tests, Integration Tests, Performance Testing; Provide on-call support to applications in production when necessary; Create Intellectual Property; Profile: ​ Bachelor or Master degree; +2/3 years of experience with JavaScript/Front-End Java development Skilled in relevant programming languages and technologies e.g. Javascript, Typescript, NodeJS, REST, React and Blockchain JavaScript API; Experience working with relevant frameworks, databases, tools and testing programmes; Experience with Docker and/or Kubernetes; Experience with Unit Tests, Integration Tests, Performance Testing; Experience in deploying Blockchain infrastructure; Understanding of Blockchain technology; Strong passion for and understanding of decentralized technologies; Offered: A challenging role for an international Blockchain organization in Australia/NZ; Indefinite, long-term contract; Attractive salary package; Interested: If you have the determination for a rewarding career, please send your CV to us via or call us on +94 114312515 for more information. Details Originally posted on Himalayas

We are looking for an experienced Blockchain Engineer to contribute to a Web3 developer reputation platform currently under active development. The platform creates verifiable developer profiles from on-chain activity, smart contract deployments, technical contributions, attestations, project history, and other professional evidence. You will work on blockchain architecture, smart contracts, wallet interactions, on-chain data, protocol integrations, security, testing, and deployment. Depending on your background, your work may focus on EVM, Solana, Bitcoin, Cosmos, Move-based networks, zero-knowledge systems, or other blockchain ecosystems. Responsibilities: Design, develop, test, and maintain blockchain components and smart contracts. Build secure wallet, signature, transaction, and authorization flows. Integrate blockchain systems with backend services, indexers, APIs, and frontend applications. Review existing architecture for security, reliability, scalability, and performance. Work with on-chain data, contract events, attestations, credentials, and reputation logic. Write tests, deployment tooling, and clear technical documentation. We are interested in engineers with strong hands-on experience in blockchain development, whether your background is in Solidity/EVM, Rust/Solana, protocol engineering, blockchain infrastructure, smart contract security, ZK systems, cross-chain technology, or on-chain data. You do not need experience across every blockchain ecosystem. Deep practical experience in one or more areas is more important than familiarity with a long list of tools.

Blockchain Core Developer

Aster

Remote

Description Develop, maintain, and optimize core blockchain client software, including node implementation, P2P networking, and consensus mechanisms. Design and implement new features and improvements to enhance client performance, stability, and security. Conduct code reviews and collaborate with other developers to maintain high code quality standards. Troubleshoot and resolve complex issues related to network synchronization, state management, and transaction processing. Contribute to documentation and technical specifications for the blockchain client. Requirements Bachelor’s degree or above in Computer Science or a related technical field. 2-3 years of engineering experience, preferably in infrastructure development and maintenance. Strong coding skills, clear logical thinking, and the ability to work under pressure. Familiarity with at least one systems programming language such as Rust or Golang, with Rust preferred. Experience with distributed systems, concurrent programming, and network protocols. Prior experience with blockchain infrastructure and client development for platforms such as Ethereum, BNB Smart Chain, Sui, Aptos, or Solana (preferred). Deep understanding of blockchain concepts, including consensus algorithms such as PoS or PoA, state transition models, and cryptography (preferred). Experience contributing to open-source projects, especially in the blockchain space (preferred). Familiarity with performance profiling and optimization techniques for high-throughput systems (preferred). Benefits Opportunity to join one of the world’s leading blockchain ecosystems with strong career growth potential. Work alongside a diverse, global team of experts and innovators. Participate in cutting-edge projects that drive industry change.

We’re building a Web3 developer reputation platform that creates verifiable profiles from on-chain activity, smart contract deployments, attestations, project history, AI-based analysis, and other technical evidence. We’re looking for an experienced engineer with strong skills in Blockchain, AI, and Security to help improve and expand the platform. -Responsibilities Build and maintain smart contracts and blockchain integrations Implement wallet, signature, transaction, and authorization flows Work with on-chain data, attestations, and reputation logic Integrate AI for developer analysis, scoring, and data processing Review smart contracts and platform architecture for security issues Improve reliability, scalability, and performance Write tests and deployment tooling -What We’re Looking For Strong experience in one or more areas: Solidity / EVM Rust / Solana AI / LLM integration Smart contract and Web3 security Blockchain infrastructure ZK / Cross-chain protocols Cosmos / Move / Bitcoin You do not need experience with everything. Strong practical experience in Blockchain, AI, or Security is more important. When applying, please share your strongest technical area and 1 relevant projects you personally worked on.

SaaS Rationalization LLC is an early-stage software company building technology to help organizations better understand, manage, and optimize their software environments. Our goal is to help businesses reduce unnecessary software costs and complexity, identify overlapping or underused applications, improve visibility into software usage, and manage software-related workflows more effectively. We are also exploring automation, secure transaction workflows, verification systems, and blockchain integrations where they provide practical value. We are looking for a Backend Developer with strong Rust experience and practical blockchain knowledge to join our growing technical team. This is primarily a backend engineering role. You will build reliable backend services, REST APIs, integrations, data-processing workflows, and core application infrastructure. Some areas may involve blockchain functionality such as transactions, wallet integrations, smart contracts, verification workflows, and distributed systems. However, this is not a purely Web3 or smart-contract-focused role . Design and maintain backend services using Rust Build scalable REST APIs and service integrations Work with databases, authentication, authorization, and secure data handling Build asynchronous and event-driven backend workflows Integrate third-party APIs and external services Contribute to blockchain transactions, wallets, smart-contract integrations, and verification workflows Design maintainable and scalable backend architecture Write unit and integration tests Troubleshoot performance, application, and infrastructure issues Participate in code reviews and technical discussions Take ownership of backend features from design through production Strong professional experience with Rust Solid backend development experience Experience building REST APIs Good understanding of databases and data modeling Experience with authentication, authorization, and backend security Understanding of asynchronous programming and distributed systems Experience integrating external APIs Good software architecture and system design knowledge Familiarity with Git, testing, and debugging Ability to work independently in a remote environment Practical blockchain experience is expected, but deep specialization in every Web3 technology is not required. Relevant experience may include: Blockchain transactions Wallet integrations Blockchain APIs and JSON-RPC Smart-contract integrations Digital signatures, hashing, and key management Transaction validation Blockchain nodes or infrastructure Ethereum-compatible or other blockchain networks Distributed systems Experience with any of the following is a plus: Python or TypeScript PostgreSQL Redis and queues Docker Cloud infrastructure Microservices SaaS or B2B products Workflow automation Solidity or smart contracts Monitoring and observability CI/CD Title: Backend Developer (Rust & Blockchain Experience) Level: Mid-to-Senior Core Skills: Rust, Backend Development, Blockchain Integration Location: Remote, Europe, North America, and South America Employment Type: Contract

Category: Technology Location: Lagos Lagos Nigeria Position: Full Stack Developer (Blockchain, Ruby on Rails, React, Next.js) Location: Remote Employment Type: Full-Time Job Summary We are seeking a highly skilled and motivated Full Stack Developer with expertise in blockchain technology, Ruby on Rails, React, and Next.js to join our dynamic team. The ideal candidate will play a key role in designing, developing, and maintaining innovative web applications that integrate blockchain solutions. This is an exciting opportunity to work on cutting-edge projects and contribute to the development of scalable, secure, and user-friendly applications. Key Responsibilities Blockchain Development: Design and implement blockchain-based solutions, including smart contracts and decentralized applications (dApps). Integrate blockchain protocols (e.g., Ethereum, Solana) into web applications. Ensure the security, scalability, and efficiency of blockchain implementations. Back-End Development: Develop and maintain server-side logic using Ruby on Rails. Design and manage databases to ensure efficient data storage and retrieval. Implement RESTful APIs and GraphQL endpoints for seamless integration with front-end systems. Front-End Development: Build responsive, user-friendly interfaces using React and Next.js. Optimize applications for maximum speed, scalability, and cross-browser compatibility. Ensure accessibility and a seamless user experience. Full Stack Integration: Collaborate with designers, product managers, and other developers to deliver end-to-end solutions. Debug and troubleshoot issues across the entire stack. Testing and Deployment: Write unit and integration tests to ensure code quality and reliability. Deploy applications to production environments and monitor performance. Continuous Improvement: Stay updated on emerging technologies and industry trends in blockchain and web development. Propose and implement improvements to existing systems and processes. Requirements Requirements Technical Skills: Strong experience with Ruby on Rails for back-end development. Proficiency in React and Next.js for front-end development. Hands-on experience with blockchain technology (e.g., Ethereum, Solana, Hyperledger). Familiarity with smart contract development (e.g., Solidity, Rust). Knowledge of RESTful APIs, GraphQL, and web sockets. Experience with database systems (e.g., PostgreSQL, MySQL). Understanding of version control systems (e.g., Git). Soft Skills: Strong problem-solving and analytical skills. Excellent communication and teamwork abilities. Ability to work independently and manage multiple tasks effectively. Preferred Qualifications: Experience with DevOps tools (e.g., Docker, Kubernetes, CI/CD pipelines). Knowledge of cloud platforms (e.g., AWS, Azure, Google Cloud). Familiarity with Agile/Scrum methodologies. Benefits What We Offer Competitive salary and benefits package. Opportunity to work on innovative projects with cutting-edge technologies. Flexible working hours and remote work options. Professional development and growth opportunities. A collaborative and inclusive work environment. How to Apply Interested candidates are invited to submit their resume and a cover letter detailing their relevant experience and why they are the ideal candidate for this role to; , Please use " Full Stack Developer - Remote Role" as email subject. Details Originally posted on Himalayas

This is a remote position. Company : Glitch is a blockchain agnostic super protocol, purpose built to facilitate trust-less money markets. At Glitch Finance we focus on DeFi Products and a vision to grow the best group o f products on one of the fastest decentralized platforms. We provide an ideal work environment while empowering and requiring you to take responsibility for your own tasks and objectives. We will have high expectations of you at work, but also respect that work is only one part of your overall life. We will challenge you to produce your best work, and you will be rewarded by sharing in the success of the company. Individual : Be passionate about technology Solve problems with curiosity and creativity Embrace challenges and change Commit to getting better every day Contribute to a positive team environment Region : Anywhere (must overlap 50% with Vietnam timezone from 2PM to 6PM Vietnam TZ) Responsibilities: Write frontend code using web3.js and ether.js libraries ​Create modular code and libraries for future usage. Requirements Conversational english. Javascript programming language experience (5+ years) Web3.js library usage (2+ years) More than 5 (five) years of experience in software development projects in medium to large teams (3 to 10 team members) Experience in the following are highly desirable (3+ years): Solidity, nodejs TDD, writing tests and unit testing (automated testing a plus) Git or other source control system. Extra Awesome: Decent understanding of finance/accounting/trading/economics concepts Contribution to open source projects. Originally posted on Himalayas