Senior Software Engineer
ToptalEstonia8 hours ago
Full-timeEngineering, Information Technology
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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:
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.
- 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.
- 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.
- 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.
- 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.
- 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.
Key Skills
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