Opeyemi Folarin
I'm Opeyemi Folarin, a dedicated mobile application developer with over a decade of experience delivering native apps using Swift and Kotlin.
About
I’m Opeyemi Folarin, a dedicated mobile application developer with over a decade of experience delivering native apps using Swift and Kotlin. My focus is building secure wallets, payments, and blockchain-integrated solutions that feel fast, reliable, and easy to use.
I collaborate closely with product, design, and backend teams to ship polished, scalable mobile experiences across iOS and Android, from governance features to regulatory-compliant payments, while mentoring teammates and driving best practices in code quality and performance.
- 10 years' experience
- Joined November 2025
Industry experience
- Software & Internet
- Healthcare
- Financial Services
- Professional Services
- Media & Entertainment
- Education
- Computers & Electronics
- Gaming
More experts in London, United Kingdom
- App Developers for hire in London, United Kingdom
- Back-End Developers for hire in London, United Kingdom
- Developers for hire in London, United Kingdom
- Front-End Developers for hire in London, United Kingdom
- Full Stack Developers for hire in London, United Kingdom
- UI Designers for hire in London, United Kingdom
- UX Designers for hire in London, United Kingdom
- Web Developers for hire in London, United Kingdom
Work experience· 9 roles
Led the React Native architecture for Yoroi Wallet across iOS/Android, leveraging TypeScript, Redux-Saga, React Query, and Context API to deliver scalable, high-performance state management. Implemented secure key storage with Keychain/Keystore, biometric authentication, and multi-language support to safeguard wallets while enabling global access. Delivered staking, token transfers, and hardware wallet compatibility (Ledger/Trezor) to extend DeFi functionality. Integrated governance features including Project Catalyst voting and DRep representation, enabling on-device Cardano governance. Maintained native iOS (Swift) and Android (Kotlin) modules to improve offline reliability and platform consistency. Led mobile delivery for Anzens Wallet with USDA stablecoin minting, KYC/KYB flows, and regulatory integrations for institutional-grade compliance. Partnered with BitGo Trust to integrate custody solutions. Introduced automated CI/CD pipelines and end-to-end tests for high-risk crypto flow
Led React Native architecture for Yoroi Wallet across iOS/Android, using TypeScript, Redux-Saga, React Query, and Context API to ensure scalable, performant state management. Implemented secure key storage with Keychain/Keystore, biometric authentication, and multi-language support, safeguarding wallets while improving accessibility for global audiences. Delivered staking, token transfers, and hardware wallet compatibility (Ledger/Trezor), expanding Yoroi’s DeFi functionality and strengthening user trust in digital asset management. Integrated governance features including Project Catalyst voting and DRep representation, enabling users to engage with Cardano on-chain decision-making directly from mobile. Maintained native iOS (Swift) and Android (Kotlin) modules for wallet features, improving offline reliability and platform consistency under varying network conditions. Spearheaded mobile delivery for Anzens Wallet, implementing USDA stablecoin minting, KYC/KYB flows, and financial r
Led cross-platform mobile architecture for Anzens Wallet and Cardano Spot on iOS, designing shared business logic and domain layers using SwiftUI, with a clear separation between shared code and platform-specific implementations. Implemented secure key storage with Keychain, biometric authentication, and multi-language support to safeguard wallets while improving accessibility for global audiences. Extended Rust-based Cardano transaction signing with a secure FFI bridge to native Swift, enabling deterministic, memory-safe signing while preserving seamless integration with the wallet’s architecture. Delivered staking, token transfers, and hardware wallet compatibility (Ledger/Trezor), expanding Yoroi’s DeFi functionality and strengthening user trust in digital asset management. Integrated governance features (Project Catalyst voting, DRep representation) enabling on-device engagement with Cardano on-chain decisions. Maintained native iOS modules for wallet features, improving offlin
Education· 5
Certifications and awards
Hire Opeyemi Folarin today
Post a job and invite Opeyemi, or contact them directly. No hidden commission.














