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Senior Software Engineer (React Native)

Europe, South America

About Toptal:

Toptal is the world’s leading premium talent marketplace, trusted by 30,000+ clients, processing over $5B in payments across 140+ countries.
We’re building a borderless finance platform on stablecoin rails, focused on fast, reliable money movement at global scale. This team is shipping the first production version of the product — quickly, iteratively, and with high quality.

Get ready to:

·        Work in a small team shipping mobile features continuously.·        Take ownership of React Native implementation from ticket to production.·        Collaborate closely with backend engineers to deliver end-to-end user flows.·        Ship fast, fix fast, and improve based on real usage.

What you’ll do:

·        Build and ship React Native apps using Expo for iOS and Android.·        Implement core user flows: onboarding, authentication, payments, balances, and settings.·        Integrate backend APIs efficiently and handle loading, error, and retry states correctly.·        Focus on performance and reliability under real-world conditions (poor connectivity, retries, edge cases).·        Own releases: builds, OTA updates, store submissions, and production fixes.·        Keep the codebase clean, maintainable, and easy to extend as the product evolves.

What we’re looking for:

·        4+ years building production mobile apps, with strong React Native experience.·        Hands-on experience with Expo (managed or bare), including builds and releases.·        Strong TypeScript skills and comfort working with API-driven products.·        Solid understanding of mobile app performance, navigation, and lifecycle.·        Experience shipping frequently in fast-moving product teams.·        Fintech or payments experience is a plus, but execution matters more than domain.

How you work (values we expect):

·        Execution-first - you ship working software, not just ideas.·        Ownership - you see features through from implementation to production.·        Product-aware - you understand how users interact with what you build.·        Speed with discipline - you move fast without breaking trust.·        AI-assisted - you use tools like Cursor/Claude Code/etc. to move faster.

Bonus points if you have…

·        Shipped fintech, payments, or crypto-related mobile apps.·        Experience with mobile security (secure storage, biometrics).·        Built flows involving KYC, document capture, or real-time balances.·        Worked on early-stage products where speed mattered.

What we offer:

·        Clear ownership and real responsibility from day one.·        Fast execution with minimal process overhead.·        Direct impact on a global financial product.·        A senior team that values shipping, quality, and learning. 

Toptal

Apply now