React Native Developer

Quick Facts

• Role: React Native Developer

Description

Join a project to audit, maintain, and further develop a next-generation training mobile platform integrating AI, medical data, and wearable devices. You will review existing React Native code, stabilize high-risk screens and flows, design new app architecture, and manage release pipelines for mobile stores.

You will also participate in an on-call rotation to handle mobile-side incidents.

Responsibilities

• Audit JSI/Nitro Module bridges, with a focus on integration with a Kotlin fitness-equipment SDK
• Read and document the existing mobile codebase in collaboration with the outgoing engineering team
• Identify the most risky screens and user flows and propose stabilization plans
• Design and review architecture for new app screens and flows
• Manage application release pipelines for App Store and Google Play
• Participate in an on-call rotation for mobile-side failures

Requirements

• 5+ years of experience building mobile applications
• Minimum 3 years of production experience with React Native
• Strong practical knowledge of JavaScript and TypeScript for everyday coding
• Practical state management experience with Zustand, Redux Toolkit, or Jotai
• Production experience with React Query / TanStack Query at scale
• C1 proficiency in both Polish and English

Benefits

• 100% remote work
• B2B flexible engagement model with step-based billing and deliverable acceptance protocols
• Administrative and billing support from Connectis
• Participation in industry events and tech meetups
• Referral bonus: 5,000 PLN for recommending friends
• Fast and remote hiring process