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November 4, 2026
Android Developer
Senior • On-site
Warsaw, Maz, Poland
Quick Facts
Role: Android Developer
Domain: Financial sector mobile applications
Main stack: Kotlin, Jetpack Compose, Kotlin Multiplatform, Clean Architecture, MVVM
Description
You will design and develop modern, production-ready Android mobile applications and continuously improve them. You’ll implement new features, refactor for quality and scalability, and ensure the app is well-tested using Espresso, JUnit, and MockK. The work is done collaboratively in Agile sprint cycles.
Responsibilities
Develop mobile applications for individual customers, including an app for the youngest users
Co-create new functionalities and deploy them to a running production application
Refactor existing code to improve quality and scalability
Test applications with Espresso, JUnit, and MockK
Work in an Agile team using sprint cycles
Requirements
Regular: minimum 3 years of Android application development
Senior: minimum 6 years of Android application development
Very good knowledge of Kotlin and Jetpack Compose
Knowledge of Kotlin Multiplatform
Practical knowledge of Clean Architecture and MVVM
Experience with testing: Espresso, JUnit, MockK
Knowledge of Agile methodologies and experience working in sprints
Senior only: experience publishing apps on Google Play
Senior only: experience mentoring the team
Benefits
Work as part of a team developing production mobile applications in continuous improvement mode
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