Senior React Native Developer w Kraków, Polska

Technical Lead (Mobile) The Opportunity: We are looking for a hands-on Technical Lead to own, architect, and scale the mobile ecosystem powering a high-growth US enterprise delivery platform. You will build and mentor a small, agile mobile team from day one in a newly established Kraków R&D hub. This is a greenfield product-minded role—not an order-taker position. You will have full ownership of technical architecture, strategy, and engineering standards. The Core Challenges Real-World Engineering: Architecting robust, battery-optimized systems that survive unstable field connectivity (offline-first data synchronization). High-Concurrency Tracking: Implementing high-performance real-time GPS/location tracking and geofencing workflows for millions of operational end-users. Hybrid Architecture: Scaling a core React Native platform while tightly integrating native iOS/Android subsystems where performance is critical. Your Profile 8+ years in software engineering with deep, production-level mobile development experience. 2+ years in a technical leadership/team lead capacity, driving architecture and mentoring junior/senior engineers. Expert-level proficiency in React Native, TypeScript, and deep understanding of native iOS/Android internals. Fluent in English and Polish (B2+ minimum for collaboration across EU/US time zones). The Company A fast-growing, highly decorated US SaaS platform managing a network of over 12 million drivers. Consistently ranked on Forbes’ America's Best Startup Employers. They combine the technical agility of an early-stage startup with the financial backing and stability of an established enterprise market leader.