Senior Mobile Engineer (Flutter)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Mobile Engineer (Flutter) based in Poland. This is an opportunity to join an established digital product and contribute to a mobile experience used by a global community. You’ll work on core product journeys including registration, discovery, profiles, messaging, engagement, and monetization. The role combines hands-on Flutter development with a strong focus on analytics, performance, and measurable product outcomes. You’ll help evolve a production mobile application across both iOS and Android while supporting multiple brands and configurations. The environment is remote-first and internationally distributed, with experienced professionals collaborating across cultures and time zones. You’ll work with modern Flutter architecture and tooling while contributing to a product where mobile quality and user engagement directly matter. This role is well suited to an engineer who enjoys ownership, technical depth, and building scalable mobile experiences. Develop and maintain core mobile product experiences across authentication and registration, search and discovery, profiles, photos, messaging, matching, and user engagement. Analyze and improve key product funnels, including registration, upgrades, monetization, messaging engagement, and match or interest conversion. Own and contribute to analytics for core mobile journeys, helping teams understand user behavior and identify opportunities for product improvement. Monitor and improve platform-specific capabilities such as push notifications, deep links, and real-time features. Analyze mobile advertising and in-app purchase revenue metrics and support initiatives designed to improve monetization performance. Support compliance-related analytics and functionality, including consent management, age verification, and user verification. Build and evolve production Flutter applications for both iOS and Android using maintainable, scalable architecture. Contribute to multi-flavor and white-label application delivery, including brand-specific configurations, assets, store identifiers, and Firebase environments. Develop automated tests across unit and widget levels and help maintain high standards of reliability and code quality. Collaborate with product, engineering, analytics, and other cross-functional stakeholders in a fully remote international environment. Requirements Strong professional experience with Flutter and Dart 3.x , including experience delivering and maintaining production applications for both iOS and Android. Solid understanding of layered mobile architecture, including separation between UI, domain/use cases and repositories, and framework layers. Hands-on experience with BLoC and Provider , as well as GetIt for dependency injection and GoRouter for navigation. Experience working with Dio for networking and immutable data models using code generation tools such as built_value or similar technologies. Experience building and shipping multi-flavor or white-label mobile applications, including per-brand configurations, assets, store IDs, and Firebase setups. Practical experience writing automated tests, particularly unit and widget tests; familiarity with bloc_test or BDD-style testing is an advantage. Strong understanding of mobile application architecture, performance, maintainability, and production development practices. Analytical mindset with an interest in using product data and user behavior to improve mobile experiences and business outcomes. Ability to work independently, take ownership of technical responsibilities, and collaborate effectively within a distributed team. Fluent Russian and B2-level English communication skills. Benefits Fully remote, full-time working opportunity. Competitive compensation, with the initial salary level or range shared with candidates during the recruitment process and before employment begins. 28