Senior Crypto Wallet Developer Needed
Budget: $250 – $320 USD
I’m building a lightweight cryptocurrency wallet and I want an experienced developer to take it from concept to a polished, secure release. The scope is intentionally lean—clean UI, fast load times, and zero-friction onboarding—but it still has to hit the core expectations users have of a modern wallet.
At minimum, the wallet must let a user:
• generate or import a seed phrase
• send and receive payments
• view real-time balances and transaction history
Our initial target assets are Bitcoin and Ethereum, with the option to add Litecoin or other EVM-compatible tokens once the core is stable. I’m flexible on platform: if you specialize in native iOS (Swift), native Android (Kotlin), React Native, Flutter, or even a responsive web PWA, make your case and show past wallet work that proves you can ship safely audited code.
Security is non-negotiable. You should understand key-management best practices, encrypted local storage, and how to integrate with hardware wallets or WalletConnect-style protocols. A quick audit report (your own checklist or a third-party reviewer) will be part of final acceptance.
Deliverables I need from you:
• Working wallet app that passes a basic smoke test on the agreed platform
• Well-structured, documented source code in Git, plus CI/CD scripts for repeatable builds
• Short read-me covering build steps, dependencies, and how to extend the asset list
• A hand-off call or video walkthrough so my team can maintain the project confidently
If you have shipped a wallet before, can explain your security approach in plain language, and have references or code samples to back it up, let’s talk timelines and milestones.
At minimum, the wallet must let a user:
• generate or import a seed phrase
• send and receive payments
• view real-time balances and transaction history
Our initial target assets are Bitcoin and Ethereum, with the option to add Litecoin or other EVM-compatible tokens once the core is stable. I’m flexible on platform: if you specialize in native iOS (Swift), native Android (Kotlin), React Native, Flutter, or even a responsive web PWA, make your case and show past wallet work that proves you can ship safely audited code.
Security is non-negotiable. You should understand key-management best practices, encrypted local storage, and how to integrate with hardware wallets or WalletConnect-style protocols. A quick audit report (your own checklist or a third-party reviewer) will be part of final acceptance.
Deliverables I need from you:
• Working wallet app that passes a basic smoke test on the agreed platform
• Well-structured, documented source code in Git, plus CI/CD scripts for repeatable builds
• Short read-me covering build steps, dependencies, and how to extend the asset list
• A hand-off call or video walkthrough so my team can maintain the project confidently
If you have shipped a wallet before, can explain your security approach in plain language, and have references or code samples to back it up, let’s talk timelines and milestones.
Related categories:
Mobile App Development
iPhone
Android
PhoneGap
Bitcoin
Blockchain
Security
Cryptocurrency