truchq
Mobile Crypto Wallet Engineer
React Native engineer with 8+ years experience,
specializing in non-custodial multi-chain wallet
development. Previously at Moonstake —
integrated 50+ blockchain networks including
Bitcoin, Ethereum, Solana, Cosmos, Polkadot, and
TON. Built a personal production wallet supporting
9+ EVM networks, WalletConnect v2, DApp
browser with injected Web3 provider, and biometric
security. Available for remote contract or full-time
roles. Async collaboration preferred. Can start
immediately.
Experience: 8 years
Yearly salary: $60,000
Hourly rate: $50
Nationality: 🇻🇳 Vietnam
Residency: 🇻🇳 Vietnam
Experience
Senior Mobile Developer/ Team Lead
Moonstake 2020 - 2026
- Integrated 50+ blockchain networks — Bitcoin, Ethereum, Solana, Cosmos, Polkadot, TON, Aptos, Avalanche, Cardano, Tezos, Harmony, Filecoin, Neo, EOS, Tron, Stellar, and more - Each integration covered address derivation, transaction signing, fee estimation, and broadcast — all on-device - Designed scalable chain adapter architecture and state management - Improved app performance by ~70% through optimization and refactoring - Reduced crash rate and improved production stability - Mentored junior developers and conducted code reviews - Managed app releases and CI/CD pipelines (App Store & Google Play) - Currently sole maintainer of the mobile app (iOS & Android) under freelance contract — responsible for all mobile releases and critical bug fixes
Skills
react-native
english