Android Developer with Java Backend Experience w Warszawa, Polska

GENERAL INFORMATION: Industry: fintech Location: Warsaw (hybrid work model - 2x month in the office) Rate: up to 165 PLN/h Form of cooperation: B2B Project duration: long-term ROLE SUMMARY: The Android Developer role is focused on facilitating customer onboarding while maintaining the fintech app functionality across diverse markets. MAIN RESPONSIBILITIES: The primary duty of the Android Developer is to design and implement robust Android applications while collaborating across teams. Design and implementation of Android applications using Kotlin and Jetpack Compose. Build and optimize Java backend microservices and REST endpoints. Translate business requirements into technical solutions in collaboration with stakeholders. Act as a technical reference point for team members and guide architectural decisions. Encourage innovation and the adoption of new technologies for operational excellence. Communicate complex technical concepts to non-technical stakeholders effectively. Foster a culture of mentorship and shared learning within the team. Communicate clearly in both Polish and English while adapting language for diverse audiences. KEY REQUIREMENTS: 5+ years of experience in Android development. Proficiency in Kotlin, Google Jetpack Compose, and Android SDK. Hands-on experience with Architecture Components and networking tools such as Ok Strong understanding of Java, Spring and microservices integration. Working knowledge of SQL and experience with unit testing. NICE TO HAVE: Experience in the Fintech industry. Knowledge of Koin DI and MVVM architecture. A proactive mindset and excellent communication skills. OTHER DETAILS: The position is based in Warsaw, within a team structure of 2 developers, 1 tester, a scrum master, a product owner, and business analysts. The work model is hybrid, requiring 2 office days per week, with flexible working hours.