Must have

• React native

• SQLite

• Realm

• RESTful API

• GraphQL

• Agile

• CI/CD

• Problem-Solving

• Communication skills

• Redux

• MobX

• English (B2)

• Polish (B2)

Nice to have

• Cloud

• UX design

• UI design

Requirements description

• 6+ years for senior position of experience in mobile apps development, with a particular focus on efficiency optimization and code reuse.
• Strong commercial experience with React Native and the React ecosystem
• Experience with state management (Redux, MobX, Zustand, or similar).
• Familiarity with React Navigation and deep linking.
• Experience integrating APIs (REST, GraphQL) and handling offline data (e.g., AsyncStorage, SQLite, Realm).
• Understanding of app lifecycle management, background tasks, and push notifications.
• Experience with platform-specific integrations (e.g., camera, geolocation, local storage).
• Understanding of mobile security best practices.
• Familiarity with mobile app design principles and UI/UX best practices.
• Familiarity with publishing to App Store and Google Play.
• Understanding of cloud services (AWS, GCP, or Azure).
• Experience with data persistence
• Experience with Agile methodologies and CI/CD practices.
• Strong problem-solving skills and ability to work in a fast-paced environment.
• Excellent communication and collaboration skills.
• Advanced proficiency in English, both written and spoken (B2+).

Offer description

Why Join OneRail Poland?

• Innovation at its Core: Work on industry-leading technology that is shaping the future of logistics.
• Career Growth: Opportunities for professional development and career advancement.
• Collaborative Culture: Join a team of talented engineers and industry experts.
• Exciting Challenges: Solve complex problems and contribute to impactful projects.
• Flexibility: We offer a flexible hybrid work style and flexible employment types to suit your needs, ensuring a work-life balance that works for you.
• Competitive Compensation: Attractive salary and benefits package.

Office location: Kraków, Poland

Work Style: hybrid (2-3 days from the office / week preferred), We are open to a more flexible arrangement for candidates located outside the Krakow area.

Salary levels: 20 000 – 28 000 PLN/month

Your responsibilities

1. Design and develop advanced mobile applications using React Native.
2. Integrate APIs.
3. Implement modern UI/UX designs with pixel-perfect precision across iOS and Android.
4. Write clean, modular, well-tested code following architecture patterns and best practices typical for mobile apps development.
5. Identify and resolve performance bottlenecks, memory leaks, and UI glitches.
6. Implement native modules and platform-specific integrations (camera, geolocation, push notifications, local storage).

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