React Native Developer

Sii Poland; Bydgoszcz; On-site; PLN 180,000 - 240,000; Full time

Job summary

A leading technology company in Poland is seeking a Senior React Native Developer to contribute to dynamic mobile application projects that span various sectors. The ideal candidate is equipped with extensive experience in React Native and is eager to mentor junior developers. This role offers the chance to work in a collaborative environment with opportunities for professional growth and development.

Benefits

Great Place to Work

Centre of internal trainings

Profit sharing

Comfortable and well-equipped offices

Medical care

Qualifications

• Minimum 4 years in mobile app development.
• 3 years experience with React Native.
• Fluent in Polish; communicative English.

Responsibilities

• Develop mobile applications using React Native for both iOS and Android.
• Design application architecture and optimize for performance.
• Conduct code reviews and support team members.

Skills

JavaScript

TypeScript

React Native

Redux

API communication

CI/CD

Debugging

Job description

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 not only technical knowledge to the project, but also initiative, good communication and willingness to mentor younger team members.

Your tasks

• 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 of experience 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
• Residency 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
  
  

Job no. 250625-APGBX

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