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May 21, 2026

Android Developer with Java Backend Experience

Senior • Hybrid

Warsaw, Poland

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 OkHttp.

  • 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.