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Andersen is hiring a Lead Flutter Developer to drive migration of a mobile banking app to a scalable cross-platform solution, enhancing performance, security, and user experience.

The customer is a mobile-only digital bank offering modern financial services through an app-based experience. The organization provides features such as virtual cards, multi-currency accounts, savings tools, and goal-based financial planning, along with innovative products that support personal and group savings. Known for its user-centric approach and continuous product innovation, the bank has received industry recognition for digital excellence and customer experience.

The project is focused on migrating a mobile banking application to Flutter to deliver a unified, scalable cross-platform solution for iOS and Android. It includes modernizing business logic, secure integrations, and UI components to improve performance, reliability, and user experience while enabling faster future development.

Responsibilities:

• Designing, developing, and maintaining complex, scalable mobile applications using Flutter, including rich UI and advanced business logic for a mobile banking product.
• Participating in technical planning and solution design, including application architecture, technology selection, and integration approach with backend and third-party services.
• Collaborating closely with backend, QA, DevOps, and product teams to ensure secure, stable, and high-performance mobile solutions.
• Implementing and maintaining reusable libraries, shared components, and designing system elements across Flutter applications.
• Optimizing application performance, memory usage, and responsiveness, ensuring smooth user experience on iOS and Android devices.
• Debugging, troubleshooting, and resolving complex issues; continuously improving code quality, stability, and maintainability.
• Preparing applications for release and manage publishing to App Store, Google Play, and AppGallery, including compliance with platform guidelines.
• Contributing to technical decision-making, mentoring junior developers, and promoting best practices in Flutter development.
• Staying up to date with modern mobile development trends and apply industry best practices, especially relevant to fintech and banking applications.
  
  Must-haves:
• Experience as a Flutter Developer for 4+ years.
• Experience working as a Tech/Team Lead.
• Experience in fintech domain.
• Strong understanding of Object-Oriented Programming (OOP) principles.
• Solid hands-on experience with Dart and Flutter framework in production environments. Proven experience developing high-load, large-scale mobile applications.
• Strong knowledge of Git and collaborative version control workflows.
• Practical experience with BLoC architecture pattern and state management.
• Deep understanding of the full mobile development lifecycle, including CI/CD, automated testing, and build processes.
• Confident use of Flutter SDK tools and libraries to build production-ready applications.
• Experience publishing apps to App Store / Google Play / AppGallery.
• Experience developing native plugins and integrating platform-specific functionality. Knowledge of Cupertino and Material Design guidelines.
• Solid understanding of HTTP, REST, JSON, as well as WebSockets and GraphQL.
• Hands-on experience with Dependency Injection (e.g., getIt, injectable).
• Experience working with Firebase services (Analytics, Crashlytics, Cloud Messaging).
• Ability to work with Figma and collaborate effectively with design teams.
• Experience with Flutter Method Channels and interoperability with Java/Kotlin or Objective-C/Swift.
• Experience embedding and managing native views inside Flutter applications.
• Strong communication skills, team-oriented mindset, and willingness to mentor other developers.
• Level of English – from Intermediate+ and above.
  
  Reasons why this job would be interesting to you:
• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc.;
• The opportunity to change the project and/or develop expertise in an interesting business domain;
• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant;
• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee;
• The opportunity to earn additional up to 1,000 USD per month by participating in the company's activities;
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated;
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies);
• Certification compensation (AWS, PMP, etc);
• Referral program;
• English courses;
• Private health insurance and compensation for sports activities.

Join us!