Senior Flutter Engineer

Valtech is looking for a Senior Flutter Engineer to help design and build high-quality, scalable native mobile and web applications using Flutter. You will work closely with product managers, designers, and fellow engineers to bring modern, responsive digital experiences to life. You will also use AI coding agents as a core part of your daily work.

• Develop cross-platform applications using Flutter for Android/iOS
• Translate product requirements and UI designs into fully functional features
• Write clean, testable, and maintainable code following best practices
• Participate in code reviews, offer constructive feedback, and support team learning
• Collaborate with UI/UX designers to create seamless user experiences
• Integrate apps with backend APIs and services
• Monitor application performance and diagnose root causes in production
• Go below the Flutter layer when needed: platform channels, FFI, native SDK integration
• Work with AI coding agents daily and define team practices for them

• 8+ years of total software development experience
• Minimum 4+ years of hands-on experience with Flutter and Dart in production, including apps with real users at scale
• Strong understanding of object-oriented programming and modern development practices
• Experience writing unit widget and integration tests
• Hands-on experience choosing and owning state management solutions (e.g., Riverpod, BLoC, Provider) and ability to justify the choice
• Experience integrating RESTful APIs and handling asynchronous data flows
• Understanding of responsive UI principles and mobile design guidelines
• Solid knowledge of Git and CI/CD workflows, including code signing and app store release
• Experience with local storage (e.g., Hive, SQLite) and performance optimization
• Has owned the architecture of at least one non-trivial app using architectural patterns (MVVM, Clean Architecture, etc.) and can explain what they would do differently
• Experience collaborating with non-engineers (designers, product, clients)
• Deep knowledge of Flutter internals (rendering pipeline, rebuild behavior, isolates, memory management)
• Hands-on native mobile experience (Swift/Kotlin), including platform-specific behavior, permissions and store requirements
• Advanced, daily use of AI coding agents: you choose models and harnesses deliberately for different tasks, manage context effectively, and can explain where agents fail and how you catch it

• Experienced in Agile methodologies and consulting
• experience with golden tests and Widgetbook

• Competitive compensation package
• Flexibility, with remote and hybrid work options (country-dependent)
• Career advancement, with international mobility and professional development programs
• Learning and development, with access to cutting-edge tools, training, and industry experts

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