Engineering
Blockchain Developer
Ho Chi Minh City, Vietnam Hybrid Full-time · Mid-Senior (3+ years) $2,800–$4,500/mo
About the Role
Smart contract development and Web3 integration for clients in DeFi, NFT marketplaces, and enterprise blockchain applications. You will design and audit Solidity contracts, build React/Next.js dApp frontends, and integrate wallet and on-chain data flows into production products.
You work with a specialist blockchain pod inside InApps, collaborating with a client engineering team that ships to mainnet.
Requirements
- 3+ years of blockchain development experience
- Proficiency in Solidity smart contract development and testing (Hardhat / Foundry)
- Experience with EVM-compatible chains (Ethereum, Polygon, BNB Chain)
- Web3.js or ethers.js integration in frontend applications
- Understanding of DeFi protocols, token standards (ERC-20, ERC-721, ERC-1155)
Nice to Have
- Smart contract audit experience
- Layer 2 development (Arbitrum, Optimism, zkSync)
- Rust and Solana/Near experience
Benefits
- Competitive salary: reviewed annually
- Premium healthcare
- 13th month salary + performance bonus
- Annual $1,000 learning budget
- Hybrid model