Senior Mobile Developer with German
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Join a long-term enterprise development team as a Senior Native Mobile Engineer to build, scale, and optimize core mobile applications. This role requires an engineer capable of working cross-platform across native environments using SwiftUI for iOS and Kotlin for Android. You will play a central role in delivering smooth user experiences, maintaining high code quality, and aligning directly with team leads and client stakeholders based in Germany.
Details
Start Date: October 1, 2026.
Duration: Long-term project (contracts renewed in stable 3-month cycles).
Allocation: 0.75 FTE / 1.0 FTE
Rate: 160-200 PLN net / hour.
Work Model: 100% Remote (with occasional meetings on-site at the client’s office in Hamburg).
Language Requirement: German at a minimum B2 level (C1 preferred) for daily engineering and business communication.
Responsibilities
Native Development: Design, build, and maintain robust native mobile applications using SwiftUI (iOS) and Kotlin (Android).
Clean Architecture: Write clean, modular, and easily testable code while implementing modern mobile architecture patterns (e.g., MVVM, MVI).
API Integration: Connect mobile frontends with secure backend RESTful APIs and real-time data streams.
UI/UX Excellence: Implement fluid animations, responsive layouts, and modern components according to design specifications.
Performance Tuning: Monitor, debug, and optimize application rendering speeds, memory usage, and battery consumption profiles.
Requirements
Native Platform Mastery: Strong commercial track record in native iOS development (Swift / SwiftUI) and native Android development (Kotlin).
Ecosystem Knowledge: Solid understanding of platform-specific deployment workflows, App Store Connect, and Google Play Console environments.
Software Engineering Principles: Experience with Git workflows, automated testing frameworks, and continuous integration (CI/CD) pipelines for mobile.
Soft Skills: Highly autonomous mindset, comfortable aligning directly with international clients, and strong team-player capabilities.