Lead Flutter Developer

BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. The company has offices in Cyprus, Malta, Portugal, Poland, and Serbia, and a team of 1,300 employees.

• Experience leading a development team or holding a senior role with team responsibilities
• Strong communication skills and a collaborative mindset
• 5+ years of experience in mobile app development with Flutter (mandatory); Android and/or iOS experience is a plus
• Solid understanding of mobile architecture and platform-specific best practices
• Experience working with REST APIs and sockets
• 5+ years of hands-on experience with Flutter
• Strong knowledge of Dart, especially async programming (Streams, RxDart)
• At least one Flutter app released in production (App Store or Google Play)
• Solid grasp of OOP and SOLID principles
• Commitment to clean, maintainable code and helping others write it

• Lead and coordinate the mobile development team, ensuring smooth operations and goal achievement
• Take ownership of maintaining the current app portfolio and drive the transition to a new architecture
• Contribute to planning, grooming, technical discussions, and estimations to improve team workflows
• Review code regularly, provide feedback, and support team members' growth through coaching
• Make architectural decisions aligned with business and technical needs
• Promote knowledge sharing and encourage new ideas and best practices within the team

This position is office-based in Warsaw, Poland. Relocation assistance is provided for candidates outside the city or country.