Senior React Native Developer

We are looking for an experienced Senior React Developer to join the team working on a white-label mobile ordering platform for restaurants. The product is built as a shared, multi-tenant solution, where each client receives their own fully branded mobile application powered by a common codebase.

Who we are: 

We are Inspeerity (part of DevelopX group), engineering consultancy providing software development and consultancy. Our primary expertise is systems architecture and full stack development – from defining project requirements, to designing, building, and deploying software applications for web, backend, enterprise and mobile. We are crazy about technology, serious about people. 

 TL;DR

• Who: Senior React Native Developer

• Contract Type: B2B

• Salary range: Up to 150 PLN/h + VAT

• Start date: from ~9th June

• Term of the agreement: ~ 4 months with possibility of prolongation

What you’ll be doing: 

• Developing and maintaining production-grade mobile applications in React Native for iOS and Android platforms.

• Designing and implementing scalable, maintainable, and modular application architecture within a multi-tenant / white-label environment.

• Building advanced mobile features using TypeScript, React Navigation, Reanimated, and gesture-based interactions.

• Managing application state, server communication, caching, and API integrations using TanStack Query, Zustand, and typed API clients.

• Ensuring high code quality through clean architecture, reusable components, strong naming conventions, and maintainable code practices.

• Participating in agile development processes, including sprint planning, reviews, demos, and close collaboration with international stakeholders.

• Presenting delivered features during sprint reviews and proactively suggesting product and technical improvements.

• Supporting the QA process during regression testing and contributing to overall product stability and performance.

You will be the best fit if you have: 

• At least 3 years of commercial React Native experience with shipped production apps.

• Strong TypeScript skills - strict mode, generics, utility types.

• Deep understanding of React Navigation and complex navigation patterns.

• Experience with React Native Reanimated (v2+) and gesture-based interactions.

• Solid knowledge of iOS and Android build systems (schemes/flavours, signing, Gradle, Xcode).

• Experience debugging native crashes, JS bundle issues.

• Proficiency with TanStack Query (or React Query).

• Experience with Zustand or comparable lightweight state management.

• Ability to design and maintain a clean data-fetching layer with typed API clients.

• Experience working in a feature-based or modular architecture.

• Comfortable presenting your own work to stakeholders every two weeks.

• Proactive mindset: expected to raise observations, propose improvements, and drive initiatives - not just execute tickets.

• Strong problem-solving and debugging skills.

• English level B2 or higher.

• Hands-on experience working in Agile / Scrum environments.

What we offer:

• Hybrid and flexible cooperation model based on a B2B contract.

• Remote work or working from our Bialystok, Warsaw, Rzeszow offices. It's up to you!

• Great working conditions and best equipment.

• Collaboration with experienced and engaged people who will appreciate your work and support you whenever you need it.