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I am a Backend Engineer with over six years of experience specializing in Web3 and DeFi development. I focus on building secure, high-performance, and scalable systems integrated with smart contracts. My expertise includes designing RESTful and Web3 APIs, real-time indexing services, and backend systems for trading platforms. I have a deep understanding of DeFi protocols, EVM-compatible blockchains, and security best practices. Throughout my career, I have worked collaboratively across functions, mentoring engineers and producing strong documentation. I am passionate about creating seamless user experiences and reliable backend infrastructure for decentralized finance applications, and continuously improve system performance and security through innovative solutions.…I am a Backend Engineer with over six years of experience specializing in Web3 and DeFi development. I focus on building secure, high-performance, and scalable systems integrated with smart contracts. My expertise includes designing RESTful and Web3 APIs, real-time indexing services, and backend systems for trading platforms. I have a deep understanding of DeFi protocols, EVM-compatible blockchains, and security best practices. Throughout my career, I have worked collaboratively across functions, mentoring engineers and producing strong documentation. I am passionate about creating seamless user experiences and reliable backend infrastructure for decentralized finance applications, and continuously improve system performance and security through innovative solutions.

James Wang

Blockchain Developer, Back-End Developer, Developer, +1

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I am a Backend Engineer with over six years of experience specializing in Web3 and DeFi development. I focus on building secure, high-performance, and scalable systems integrated with smart contracts. My expertise includes designing RESTful and Web3 APIs, real-time indexing services, and backend systems for trading platforms. I have a deep understanding of DeFi protocols, EVM-compatible blockchains, and security best practices. Throughout my career, I have worked collaboratively across functions, mentoring engineers and producing strong documentation. I am passionate about creating seamless user experiences and reliable backend infrastructure for decentralized finance applications, and continuously improve system performance and security through innovative solutions.…I am a Backend Engineer with over six years of experience specializing in Web3 and DeFi development. I focus on building secure, high-performance, and scalable systems integrated with smart contracts. My expertise includes designing RESTful and Web3 APIs, real-time indexing services, and backend systems for trading platforms. I have a deep understanding of DeFi protocols, EVM-compatible blockchains, and security best practices. Throughout my career, I have worked collaboratively across functions, mentoring engineers and producing strong documentation. I am passionate about creating seamless user experiences and reliable backend infrastructure for decentralized finance applications, and continuously improve system performance and security through innovative solutions.

Available to hire

I am a Backend Engineer with over six years of experience specializing in Web3 and DeFi development. I focus on building secure, high-performance, and scalable systems integrated with smart contracts. My expertise includes designing RESTful and Web3 APIs, real-time indexing services, and backend systems for trading platforms. I have a deep understanding of DeFi protocols, EVM-compatible blockchains, and security best practices.

Throughout my career, I have worked collaboratively across functions, mentoring engineers and producing strong documentation. I am passionate about creating seamless user experiences and reliable backend infrastructure for decentralized finance applications, and continuously improve system performance and security through innovative solutions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Work Experience

Senior Blockchain Engineer at Unique Network

July 1, 2023 - Present

Designed and implemented event-driven backend systems for real-time NFT reward distribution on Substrate-based chains. Developed secure APIs and indexing pipelines to track blockchain events and expose data to internal and external consumers. Integrated smart contract logic into backend workflows to support both wallet-based and custodial user experiences. Built admin dashboards and internal data services using TypeScript and Rust. Provided mentorship and documentation for onboarding engineers to the NFT protocol architecture and tooling.

Senior Smart Contract Engineer at Olympus Dao

May 1, 2023 - August 5, 2025

Built and maintained on-chain bonding and staking smart contracts integrated with real-time APIs to reflect DeFi asset movements. Designed scalable API services to expose treasury metrics and yield calculations for dApp frontends. Implemented backend services using TypeScript and viem to interact with EVM chains, fetch events, and serve computed data. Created detailed internal documentation for smart contract deployment, usage, and backend interaction. Collaborated with frontend and design teams to streamline user flows and reduce backend latency.

Senior Smart Contract Engineer at Supreme Finance

February 1, 2022 - August 5, 2025

Developed EVM-based smart contracts supporting liquidity pooling, limit orders, staking, and reward distribution with safety checks. Built high-throughput backend systems for swap routing and order book aggregation using Node.js and Redis. Integrated backend monitoring and alerting for smart contract failures, gas anomalies, and frontend sync delays. Reduced backend error rates by over 40% through improved rate limiting, retry strategies, and failover handling. Authored technical documentation and API references to support partners and frontend integrators.

Smart Contract Developer at Compound Labs

March 1, 2020 - August 5, 2025

Delivered gas-optimized Solidity smart contracts for lending and staking with modular architectures. Built Go microservices serving blockchain data such as lending rates and collateral ratios to clients. Designed internal tools for tracking smart contract state changes and validating transaction outcomes. Participated in audits and test coverage improvements to enhance protocol security and stability. Collaborated closely with frontend developers to ensure reliable contract interaction and data presentation.

Full Stack Engineer at X-Team

August 1, 2018 - August 5, 2025

Developed backend APIs with Node.js and Express, implementing caching and pagination for high performance. Migrated legacy PHP and .NET systems to microservice architecture with improved CI/CD pipelines. Integrated GraphQL endpoints for responsive frontend dashboards and mobile clients. Collaborated with product and design teams to define and deliver API contracts for user-facing features.