Deliver high-quality, production-ready mobile features from design to rollout, meeting functional and non-functional requirements (performance, scalability, security, reliability).
Build features for document creation, viewing, signing, and management workflows optimized for mobile constraints.
Contribute to the architecture and modularization of mobile apps, creating reusable components, libraries, and cross-platform solutions.
Write clean, testable, maintainable code and ensure proper automated testing, monitoring, and documentation.
Manage over-the-air (OTA) updates using CodePush and participate in both App Store and Google Play release processes.
Proactively identify and mitigate risks, troubleshoot production issues, and monitor system performance.
Collaborate closely with product managers, designers, and engineers to translate product requirements into actionable technical solutions.
Make pragmatic technical decisions and contribute to feature-level and team-level architecture discussions.
Mentor and support team members through code reviews, tech talks, documentation, and knowledge sharing.
Balance technical excellence with delivery efficiency, ensuring features are delivered reliably and maintainably.
Continuously improve mobile engineering practices and contribute to a better experience for both users and engineers.

5+ years of hands-on mobile development experience, ideally in React Native.
Strong expertise with Redux Toolkit and Redux Saga for complex state management in mobile apps.
Solid TypeScript experience in large-scale React Native applications.
Strong knowledge of mobile platforms, cross-platform frameworks, performance optimization, and debugging.
Experience working with native modules and understanding iOS/Android-specific implementations; comfortable debugging native crashes with Xcode/Android Studio.
Proven ability to deliver features independently, from design to production.
Solid understanding of system design, modular architecture, and shared libraries/components.
Experience with testing frameworks, CI/CD, and monitoring tools for mobile apps.
Familiar with modern development practices (SOLID, DDD, design patterns).
Strong collaboration and communication skills, able to coordinate with other engineers, designers, and product managers.
Mentorship experience, helping team members grow and succeed.
Customer
and product-focused mindset with attention to detail in user experience and app performance.

Competitive salary. If you're located in Poland, the salary range is 275000
413000 PLN annually.
Remote-first approach with the option for hybrid work from our offices in Kyiv, Warsaw, and Lisbon.
We value long-term collaboration, whether through typical employment contract, employment of record or B2B arrangements. Be aware that contract type and benefits vary by location
feel free to clarify with our recruiters.
Work schedule aligned with EU time zones.
Honest, open culture that values constructive feedback.
Professional and personal development within a collaborative, supportive team.
Stable yet growing SaaS product offering an agile environment, ownership, start-up energy, and strong technical challenges.

Senior Mobile Engineer, React Native

Key skills