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React Native Developer

React Native Developer

Sii PolandKraków, Województwo małopolskie, Polska
Ponad 30 dni temu
Opis pracy

Join to apply for the React Native Developer role at Sii Poland

We are a team of technology enthusiasts who create cutting‑edge mobile applications with global reach. We work on projects that have a real impact on users – from fintech, to e‑commerce, to social media applications. Due to the growth of our team, we are looking for an experienced Senior React Native Developer who will bring technical knowledge, initiative, good communication, and mentorship to younger team members.

Responsibilities

  • Creation and development of mobile applications in React Native (iOS + Android)
  • Design and implementation of application architecture
  • Integration with REST / GraphQL API
  • Optimizing the application for performance and UX
  • Conducting code review and technical support for the team
  • Collaborating with the backend team, UI / UX and Product Owner

Requirements

  • Minimum of 4 years of experience in mobile application development, including 3 years with React Native
  • Proficiency in JavaScript / TypeScript
  • Familiarity with Redux / Zustand / React Query or other libraries for state management and API communication
  • Experience with native modules and bridges (Android / iOS)
  • Practical knowledge of CI / CD, testing (e.g. Jest, Detox), debugging and optimization
  • Communicative knowledge of English
  • Fluent knowledge of Polish language required
  • Residence in Poland required

    • Nice to have

  • Knowledge of native technologies (Java / Kotlin, Swift / Obj‑C)
  • Experience with publishing applications to Google Play / App Store
  • Previous work with tools like Firebase, App Center, Sentry
  • Ability to provide technical mentoring and participate in recruitments

    • Benefits For You

  • Great Place to Work
  • Solid financial situation
  • Contracts with the biggest brands
  • Centre of internal trainings
  • Many experts you can learn from
  • Open and accessible management team
  • Profit sharing
  • Passion Sponsorship program
  • Regular integration events and trips
  • Comfortable and well‑equipped offices
  • MySii app
  • Medical care

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