xunibird
Senior Blockchain Engineer
Senior Blockchain Developer with expertise in both Solidity and Rust for building secure, high-performance smart contracts across EVM-compatible and Rust-based blockchains. Over 7 years in blockchain, with a proven track record delivering scalable DeFi protocols, staking systems, and tokenomics architectures. Proficient in Solidity for EVM chains such as Ethereum and Harmony, and in Rust for Solana and Polkadot. Experienced in developing reflection-based reward models, vault staking, compounding logic, and frontend integration using Web3.js/Ethers.js. Committed to security, sustainability, and creating user-friendly DeFi applications that drive real adoption.
Experience: 6 years
Yearly salary: $10,000
Hourly rate: $40
Nationality: 🇭🇰 Hong Kong
Residency: 🇺🇸 United States
Experience
Blocchain Architect
Ajna Capital 2023 - 2025
Architected and implemented a custom Layer 2 scalability solution for Solana that reduced transaction costs by 65% while maintaining network security and decentralization principles. Engineered an optimistic rollup system with fraud-proof mechanisms that processed over 5,000 transactions per second, significantly outperforming base layer throughput during peak congestion periods. Developed a high-efficiency sequencer in Rust that batched transactions and stored rollup data on Celestia, achieving 99.9% uptime and sub-second finality for critical operations.
Blockchain Developer
Commune AI 2021 - 2023
Proposed advanced blockchain architecture for governance and decentralization, enhancing the overall framework of the platform. Built custom Substrate pallets for decentralized blockchain tailored for AI applications, optimizing performance and scalability. Audited the blockchain core engine - Subspace, significantly improving security and usability to ensure a robust and reliable system.
Blockchain Developer
Freelancer 2019 - 2021
Developed microservices and smart contract using solidity. Built innovative dApps and DeFi protocols with expertise in web development. Focused on solidity smart contract and microservice development.
Full-stack Developer
HKT 2016 - 2019
Developed into a seasoned fullstack web developer, following modern web architecture and best practices to deliver high-quality solutions. Involved in the development of over 10 web applications, including games, ecommerce platforms, and SaaS products, demonstrating versatility and expertise.
Skills
evm
full-stack
golang
nextjs
polkadot
python
react
rust
smart-contract
solidity
typescript
solana
english