Senior Blockchain Developer & Solidity Auditor

Senior Blockchain Developer / Solidity Auditor

Malaysia

Senior blockchain developer with over 8 years of hands-on work in EVM-based systems. I build and check smart contracts, full-stack applications, and cross-chain tools. I have strong skills in DeFi, smart contract security, and cloud systems (AWS, Heroku). I also work with AI tools to make development faster.

Technical Skills

Languages: Solidity, JavaScript, TypeScript, Python, Java Frontend: React, Next.js

Backend: Node.js, Nest.js, Spring Boot

Blockchain: DeFi (Oracles, Loans, Chainlink, Uniswap, ERC20, ERC721a, ERC1155, Staking, Rewards, Presale, Blockchain Indexing, Exchange Integration DevOps & Cloud: Docker, GitHub CI/CD, Heroku, AWS Elastic Beanstalk Frameworks & Tools: Foundry, Hardhat, Truffle, Remix, WAGMI, VIEM Databases: PostgreSQL, Mysql, Redis

Testing: Jest, Foundry & Hardhat

AI & Agents: MCP, LLMs

Other: Telegram Bot Development

Professional Experience

Senior Blockchain Engineer (Remote)

o1.exchange Jan 2026 – Jul 2026

● Built core smart contracts and features for a multi-chain DeFi trading terminal.

● Built a custom swap router (SwapX) from scratch supporting 7 DEXes on BSC and Base, with UUPS upgradeable proxy, Permit2, and CREATE2 for the same address across all EVM chains.

● Designed and built multi-chain trading (Base + BSC + Solana), with cross-chain swaps through Relay bridge and gasless trading via EIP-7702 paymaster — users trade with USDC, no ETH needed.

● Tools: Solidity, Foundry, React, TypeScript, CREATE2, UUPS Proxy, Permit2 Senior Solidity Developer (Remote)

Clearpool June 2025 – Dec 2025

● Deployed and maintained vault and staking contracts, ensuring secure fund flows and user deposits.

● Designed and implemented advanced borrowing and lending mechanisms with integrated reward distribution, with borrowing as the core functionality of the platform.

● Developed Real-World Asset (RWA) vaults and automated fund allocation to Aave, optimizing yield while maintaining seamless wallet integration.

● Built cross-chain bridges to enable asset transfers between different blockchain networks.

● Implemented SubQuery/SubSquid indexing pipelines with PostgreSQL to efficiently store and query blockchain data. .

● Tools: Solidity, React, Next.js, WAGMI, VIEM, GraphQL, PostgreSQL, Vercel Web3 Manager (Remote)

Avium Apr 2024 – June 2025

● Developed and integrated smart contracts for Staking, Rewards, Presale, ERC20, and ERC721 using Nest.js and Next.js

● Created a Telegram bot with clan and wallet management, trading (buy/sell), withdrawals, and settings modules

● Tools: Foundry, WAGMI, VIEM, Next.js, NestJS, Docker, Jest, AWS Elastic Beanstalk Solidity Auditor (Remote)

Code4Arena Sep 2022 – Feb 2024

● Audited solidity smart contracts for vulnerabilities and optimized gas usage. Crypto Software Engineer (Remote)

Cake DeFi Mar 2020 – Jun 2022

● Developed and deployed CeFi and DeFi products, including Oracle and Loan Systems using React, Node.js, and Solidity.

Blockchain Integration Specialist

Einnity Crypto Exchange Aug 2018 – Jan 2020

● Synced nodes for Bitcoin, Ethereum, XRP, EOS, ERC20, and Tron to support crypto exchange operations.

Developer / Team Lead

Various Companies Jul 2006 – Jul 2018

● Managed and led software development teams across ERP, insurance, and other industries.

● Proficient in building and maintaining scalable with hands-on experience Education

Bachelor of Computer and Information Technology

University of South Australia 2006

Languages

● English (Fluent)

● Malay (Fluent)

● Chinese (Fluent)

● Cantonese (Basic)

Contact this candidate