Senior React Native Developer – Crypto Wallet, Card

Responsibilities

• Evolve our mature non‑custodial crypto wallet by adding new capabilities.
• Own the core of the app – send/receive, balances, transaction history, swap/bridge, on‑ramp – and lead its product extensions, including the crypto card and IBAN experience: payments, subscriptions, physical card integration, and onboarding additional card providers across new geographies.
• Own features end‑to‑end – from planning and architectural design to implementation, testing, production monitoring, and iterative improvement based on real user feedback.
• Collaborate closely with Product and Design teams to deeply understand user needs, shape product direction, and co‑create solutions that deliver tangible value.
• Partner with QA and backend engineers to ensure strong quality control through clear documentation, reproducible testing flows, and knowledge sharing.
• Take part in a shared on‑call rotation – roughly one week a month.
• Communicate clearly and proactively by producing technical documentation and guides for internal teams, and occasionally showcase product demos for support and operations.

Qualifications

• Minimum 5+ years of production experience in frontend development, including 3+ years building React Native apps in production (Fintech/Crypto).
• Solid hands‑on crypto experience is required – you’ve worked on production products dealing with on‑chain transactions, multiple networks, and real user funds.
• A background in non‑custodial wallets is a strong plus.
• Expert in React, React Native, and TypeScript, with solid testing discipline (Jest, Detox) and modern tooling – and you stay close to the React, React Native, and Expo ecosystem, bringing ideas that keep our codebase current.
• Confident working with Git workflows, GitHub Actions, and automated pipelines for production releases.
• Security‑conscious – you understand that in a non‑custodial wallet, every code path touches real user funds, and you build accordingly.
• Skilled in technical research: evaluating trade‑offs, testing hypotheses, and making data‑driven architectural decisions.
• Genuinely enjoy automating your own work with AI – not AI for its own sake, but as a way to ship faster and at higher quality. We’re an AI‑forward team and want someone excited to push that frontier with us.
• English proficiency at least Upper‑Intermediate.
• Fluent in the Russian language.