Senior React Native Developer – Crypto Wallet

About the role

We are seeking a Senior React Native Developer to lead the development of a high‑performance, non‑custodial crypto‑wallet. Based in Ireland, you will work in a fast‑moving fintech environment where your 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 from architecture and implementation to 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 maintain reliability of production financial operations.
• Produce technical documentation, internal guides, and occasional product demos for cross‑functional teams.

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 in financial contexts.

Required skills

• React, React Native, TypeScript
• Testing frameworks: Jest, Detox
• Expo and modern React Native tooling
• Blockchain ecosystems: EVM‑compatible chains, Bitcoin‑family networks, Tron, Solana, TON
• Mobile performance, scalability, and maintainability best practices