28.08.2026 aktualisiert
100 % verfügbar
Senior Blockchain & Full-Stack Developer
Downtown, Singapur
Weltweit
Bachelor of Science in Computer ScienceSkills
DevOpsDjangoBlockchainSmart ContractsBackendBlockchain-PlattformenFull Stack EntwicklungEthereumSolidityGraphQLWeb3.jsFront EndBlockchain-SicherheitTerraform
Blockchain Development
Expertise in Solidity, Ethereum, Polygon, BSC, Solana, Web3.js, Ethers.js, Truffle, Hardhat, MetaMask, and WalletConnect for building and deploying secure smart contracts and decentralized applications, including DeFi platforms and Web3 integrations.
Full-Stack Web Development
Proficiency in frontend technologies such as React, Next.js, Vue.js, Redux, and Tailwind CSS, combined with backend frameworks including Node.js, Express.js, NestJS, FastAPI, Django, REST APIs, and GraphQL for building scalable web platforms.
Cloud & DevOps Engineering
Hands-on experience with Docker, Kubernetes, GitHub Actions, Jenkins, and Terraform for building CI/CD pipelines, streamlining deployments, and managing cloud-native backend systems on AWS.
Database Management
Solid knowledge of relational and non-relational databases including PostgreSQL, MySQL, MongoDB, and Redis for supporting high-volume production applications and blockchain transaction systems.
Smart Contract Security & Testing
Experience implementing automated testing using Hardhat and Chai to increase deployment confidence and ensure the reliability of smart contracts in production environments.
Microservices Architecture
Design and development of microservices-based platforms using Node.js, GraphQL, and PostgreSQL, enabling scalable and maintainable e-commerce and web solutions.
TypeScript & JavaScript
Migration of legacy JavaScript applications to TypeScript, improving code maintainability, reducing production bugs, and increasing automated test coverage using Jest and Cypress.
API Design
Design and implementation of RESTful and GraphQL APIs supporting high-volume production traffic, Web3 services, and cross-platform integrations.
Expertise in Solidity, Ethereum, Polygon, BSC, Solana, Web3.js, Ethers.js, Truffle, Hardhat, MetaMask, and WalletConnect for building and deploying secure smart contracts and decentralized applications, including DeFi platforms and Web3 integrations.
Full-Stack Web Development
Proficiency in frontend technologies such as React, Next.js, Vue.js, Redux, and Tailwind CSS, combined with backend frameworks including Node.js, Express.js, NestJS, FastAPI, Django, REST APIs, and GraphQL for building scalable web platforms.
Cloud & DevOps Engineering
Hands-on experience with Docker, Kubernetes, GitHub Actions, Jenkins, and Terraform for building CI/CD pipelines, streamlining deployments, and managing cloud-native backend systems on AWS.
Database Management
Solid knowledge of relational and non-relational databases including PostgreSQL, MySQL, MongoDB, and Redis for supporting high-volume production applications and blockchain transaction systems.
Smart Contract Security & Testing
Experience implementing automated testing using Hardhat and Chai to increase deployment confidence and ensure the reliability of smart contracts in production environments.
Microservices Architecture
Design and development of microservices-based platforms using Node.js, GraphQL, and PostgreSQL, enabling scalable and maintainable e-commerce and web solutions.
TypeScript & JavaScript
Migration of legacy JavaScript applications to TypeScript, improving code maintainability, reducing production bugs, and increasing automated test coverage using Jest and Cypress.
API Design
Design and implementation of RESTful and GraphQL APIs supporting high-volume production traffic, Web3 services, and cross-platform integrations.
Erfahrung
Berufserfahrung5 - 10 Jahre
Freelancer seit2026
Sprachen
Englishverhandlungssicher
Projekthistorie
Designed and deployed secure Solidity smart contracts for DeFi applications. Built Web3 applications using React, Next.js, Ethers.js, and WalletConnect. Developed scalable backend services with Node.js, Express, and PostgreSQL. Led a team of six engineers, coordinating feature delivery and code reviews. Improved application performance by 35% page load time reduction. Implemented CI/CD pipelines using GitHub Actions and Docker.
Developed Ethereum smart contracts using Solidity and Hardhat. Integrated MetaMask and WalletConnect into decentralized applications. Built REST APIs with Node.js and Express to support Web3 services. Implemented automated testing using Hardhat and Chai. Collaborated with product managers and designers to deliver blockchain-based solutions.
Developed a microservices-based e-commerce platform using React, Node.js, GraphQL, and PostgreSQL. Reduced page load time by 30% through frontend optimization and API performance improvements. Designed GraphQL APIs supporting high-volume production traffic. Built CI/CD pipelines using Docker and GitHub Actions. Worked closely with UX designers to create responsive, user-friendly interfaces.