0xhunter007

Senior Smart Contract Engineer

Experienced Senior Blockchain Developer with 8+ years of expertise in smart contract development, decentralized applications (dApps), and full-stack Web3 solutions. Specialized in Ethereum, Solana, Layer-2 scaling, DeFi protocols, and real-world asset (RWA) tokenization. Deep understanding of tokenomics, staking, and cross-chain interoperability with a strong focus on blockchain security. Proven track record in optimizing gas-efficient smart contracts, audit experience, and integrating AI-driven automation in high-impact blockchain projects.


Experience: 5 years

Yearly salary: $100,000

Hourly rate: $40

Nationality: 🇸🇬 Singapore

Residency: 🇺🇸 United States


Experience

Senior Blockchain & Smart Contract Developer
Metasalt
2023 - 2024
Led smart contract development for NFT marketplaces, Swap, and Bridge functionalities with an emphasis on RWA tokenization for DeFi protocols. Integrated Layer-2 solutions for improved scalability, transaction efficiency, and reduced gas fees. Designed and developed lazyminted NFT and Klick Token solutions, enhancing token usability and integration with real-world assets (RWAs). Conducted smart contract audits and optimized gas fees by 30% using Slither and OpenZeppelin libraries, ensuring code security and best practices. Improved transaction processing speed by 25%, resulting in higher user satisfaction and retention.
Blockchain Developer & Full Stack Engineer
REDTOKEN
2022 - 2023
Developed Hyperledger Fabric-based crypto payment solutions for enterprise adoption. Built and audited DeFi smart contracts for staking, yield farming, and liquidity pools. Integrated EVM-compatible and cross-chain functionalities to enhance token interoperability. Optimized cloud deployment on AWS & IBM Cloud using Docker and Kubernetes. Implemented automated smart contract testing using Foundry and Hardhat.
Blockchain & DeFi Engineer
TOKENMIND
2021 - 2022
Worked on implementing blockchain solutions for decentralized finance (DeFi) and asset tokenization platforms, with a focus on improving cross-chain operations. Developed DeFi smart contracts for staking, yield farming, and liquidity pools, with a focus on capital flow efficiency and security. Supported incident management and automation in collaboration tools for efficient team communication. Created and maintained an on-chain explorer to monitor activities across all DeFi protocols and dApps on multiple blockchains, providing real-time tracking and analytics of transactions and smart contract interactions.
Senior Full Stack Developer
ShareRing
2016 - 2021
Led the development of blockchain-based identity solutions utilizing Cosmos SDK & Tendermint to facilitate secure, decentralized identity verification. Integrated several third-party Web3 services into the company’s products, enhancing decentralized functionality and bridging traditional systems with blockchain solutions. Developed and deployed smart contracts for asset tokenization, enabling the company to tokenize real-world assets and facilitate seamless interactions across multiple blockchains. Built and optimized full-stack applications, focusing on secure and scalable backend solutions for blockchain projects.

Skills

evm
golang
nestjs
nextjs
node
react
rust
solana
solidity
english
chinese-mandarin