Innovative and detail-oriented Senior Blockchain Engineer with 6+ years of experience designing, developing, and deploying smart contracts and decentralized applications on EVM-compatible chains, Solana, and Cosmos SDK. Proven expertise in Layer 1 & Layer 2 architectures, DeFi protocols, cross-chain interoperability, NFT marketplaces, and secure blockchain integrations. Adept in full-stack development, cloud infrastructure, and DevOps workflows. A core contributor to mission-critical projects at Chainlink and Opensea, with a strong academic foundation from Tsinghua University.
Experience: 6 years
Yearly salary: $180,000
Hourly rate: $50
Nationality: 🇬🇧 United Kingdom
Residency: 🇬🇧 United Kingdom
Experience
Founding Engineer
GreenBay 2024 - 2025
Built a multi-chain decentralized payment and donation platform using EVM, Solana, and Cosmos SDK. Designed and deployed smart contracts for seamless token flow, compliance, and on-chain settlements. Integrated cloud services from IBM, AWS, and Tencent to support enterprise-grade deployments. Developed a React/Node.js dashboard for analytics, donations, and account management. Led architecture decisions and smart contract audits for maximum security and performance.
Senior Smart Contract Engineer
Chainlink Labs 2022 - 2023
Contributed to the development of Chainlink Staking v0.2, focusing on validator logic and economic security. Engineered enhancements to Chainlink VRF and Data Streams, improving reliability and randomness delivery. Collaborated on Cross-Chain Interoperability Protocol (CCIP), building cross-chain messaging contracts. Actively reviewed and optimized contracts for gas efficiency and audit readiness.
Senior Blockchain & Full Stack Developer
Opensea 2018 - 2022
Spearheaded smart contract architecture for NFT minting, listing, and trading (ERC-721 & ERC-1155). Built and maintained full-stack features using React, Node.js, and PostgreSQL. Integrated third-party wallet providers and Chainlink oracles for price feeds. Led incident response and patching for smart contract vulnerabilities and system-level issues. Mentored junior developers on smart contract standards and best practices.
Skills
aws
cosmos
docker
ethereum
ethereumjs
git
hardhat
mongo
nextjs
nft
node
polygon
python
react
rust
smart-contract
solana
solidity
tailwind
typescript
web3js
