Senior React Native Developer – Crypto Wallet

About the role

This senior position focuses on building and evolving a high‑performance, non‑custodial crypto wallet for a fintech‑focused partner. You will work in a fast‑moving, product‑driven environment where engineering decisions directly affect real user funds and global financial interactions.

Key responsibilities

• Own and evolve core wallet features such as sending/receiving assets, transaction history, swaps, bridges, and onboarding flows.
• Lead development of advanced financial products including crypto cards, IBAN‑based payments, subscriptions, and multi‑provider integrations.
• Drive end‑to‑end feature delivery: architecture, implementation, testing, production monitoring, and iterative improvements.
• Collaborate with Product, Design, Backend, and QA teams to define user experience and ensure high‑quality releases.
• Participate in on‑call rotation to support production systems and maintain reliability of financial operations.
• Produce clear technical documentation, internal guides, and occasional product demonstrations.
• Contribute to architectural decisions and continuously improve system performance, scalability, and maintainability.

Required profile

• 5+ years of frontend development experience, with at least 3 years building React Native applications in production.
• Proven experience on high‑load fintech or crypto applications, preferably non‑custodial wallets handling real transactions.
• Strong understanding of secure software development practices, especially for financial systems.

Required skills

• React, React Native, TypeScript
• Testing frameworks: Jest, Detox
• Expo modules and React Native tooling
• Blockchain ecosystems: EVM‑compatible chains, Bitcoin‑family networks, Tron, Solana, TON