Senior React Native Developer (Crypto-wallet)

Accountabilities:

• Own and evolve core features of a non-custodial crypto wallet, including transactions, balances, swaps, bridges, onboarding flows, and transaction history.


• Lead the development of advanced financial products such as crypto cards, IBAN payments, subscriptions, and integrations with global card providers.


• Drive end-to-end feature delivery from architecture and implementation to testing, production monitoring, and iterative improvements based on user feedback.


• Collaborate with Product and Design teams to define user experience, clarify requirements, and co-create impactful fintech solutions.


• Work closely with Backend and QA engineers to ensure high-quality releases, robust testing coverage, and well-documented systems.


• Participate in on-call rotation to support production systems and ensure reliability of financial operations.


• Produce clear technical documentation, internal guides, and occasional product demonstrations for cross-functional teams.


• Contribute to architectural decisions and continuously improve system performance, scalability, and maintainability.

Requirements

• 5+ years of frontend development experience, including at least 3+ years building React Native applications in production environments.


• Proven experience working on high-load fintech or crypto applications, ideally non-custodial wallets handling real user transactions.


• Strong expertise in React, React Native, and TypeScript, with solid testing practices using Jest and Detox.


• Experience with modern mobile ecosystems including Expo modules and React Native tooling.


• Familiarity with blockchain ecosystems, including EVM-compatible chains, Bitcoin-family networks, Tron, Solana, or TON.


• Strong understanding of secure software development, especially in environments involving financial transactions.


• Experience with Git workflows, CI/CD pipelines, and GitHub Actions for production deployments.


• Ability to evaluate technical trade-offs and make data-driven architectural decisions.


• Strong collaboration and communication skills in cross-functional, product-driven teams.


• Comfortable working in an autonomous environment with end-to-end ownership.


• Nice to have: experience with WalletConnect, Reanimated, Skia, Sentry, Firebase, or similar tooling.


• Strong interest in AI-assisted development and automation to improve engineering productivity.


• Upper-intermediate English proficiency (Russian fluency is a plus).

• Fully remote work in an international, agile team shaping the future of decentralized finance


• Competitive salary based on experience and performance


• High ownership and autonomy over technical and product decisions


• Strong engineering culture focused on modern tools and continuous innovation


• Career growth opportunities in a fast-scaling fintech environment


• Transparent feedback culture with clear impact visibility


• Opportunity to work on cutting-edge blockchain and crypto wallet technologies


• Collaborative environment with product influence at the engineering level

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