Senior Frontend Engineer (React Native) – Fintech | London (Hybrid)
I’m currently working with a high-growth fintech company building next-generation digital wallet and on-chain payment solutions, and they’re looking to hire Senior Frontend Engineers to join their team.
If you’re passionate about building high-performance, user-centric financial products used globally — this could be a great fit.
What You’ll Be Doing
• Build and optimise mobile-first applications using React Native (majority of work)
• Contribute to web features using React
• Integrate APIs using GraphQL & REST
• Own features end-to-end — from design to deployment
• Improve performance, reliability, and scalability of frontend systems
• Work cross-functionally in a product-driven squad model
Requirements:
- Strong experience with React Native (non-Expo, production-level apps)
- Solid fundamentals in React & modern JavaScript (ES6+)
- Experience integrating GraphQL / REST APIs
- Strong understanding of mobile performance, debugging, and lifecycle
- Background in fintech, payments, or data-sensitive applications
- Ability to communicate clearly with technical & non-technical stakeholders
- Experience working in cross-functional product teams
Bonus Points
• Experience with XState / state management patterns
• Exposure to test automation (E2E / unit)
• Knowledge of crypto / digital assets
• Open-source contributions or technical writing
Why This Role?
Work on a globally used financial product
Tackle real-world challenges in performance, security, and scale
Strong engineering culture with modern tech stack
High ownership and visibility within the business