Expert Android Consultant

GFT Poland Warszawa 2026-11-12
  • Minimum 6 years of commercial experience in Android mobile application development using Kotlin.
  • Hands-on experience with Android SDK, Android Studio, AndroidX, and Material Components.
  • Ability to develop applications targeting the latest Android version while maintaining backward compatibility with older Android versions.
  • Knowledge of Java.
  • Experience with MVVM architecture, including ViewModel, LiveData/StateFlow, and Navigation Component.
  • Good understanding of Clean Architecture and layered architecture principles (UI, Domain, Data).
  • Experience working with multi-module applications, including practical knowledge of separation of concerns and component isolation.
  • Strong understanding of reactive and asynchronous programming.
  • Very good knowledge of RxJava3, including error handling, schedulers, and chaining.
  • Knowledge of Kotlin Coroutines and understanding of the differences between reactive and coroutine-based approaches.
  • Experience in implementing data flows using LiveData, Flow, StateFlow, and similar mechanisms.
  • Experience in writing unit and integration tests using Mockito, MockK, PowerMock, and JUnit.
  • Good understanding of code coverage, module testability, and component testability.
  • Experience with backend integration using REST and SOAP, as well as OkHttp and Retrofit.
  • Experience with libraries and frameworks such as Firebase, Lottie, Android Architecture Components, Room, and WorkManager.
  • Experience with CI/CD processes, including Jenkins and GitLab CI.
  • Experience with development and debugging tools such as Debugger, Android Profiler, and Layout Inspector.
  • Ability to profile Android applications in terms of CPU, memory, and battery usage, as well as optimize UI performance and resource consumption.
  • Fluency in Polish
  • Good knowledge of English

We are GFT Poland. WE KNOW how to tackle complex issues with innovative approach to deliver the highest value. Our reputation has been built around one simple rule: we do not overpromise, WE DELIVER. We deliver to our employees, clients and partners. WE GROW as you grow, so investing in you is our business strategy. Caring for each other is our priority. WE CARE who you are, what you need, how you feel. WE CARE to smile, have fun and develop as human beings.

Why Choose GFT?

  • A culture of top performance
  • Deep tech IT engineering & consulting
  • 1200 skilled & top-class experts
  • 77% of the team are regular/senior
  • Products that contribute to a sustainable world
  • Competitive salary and benefits
  • Ambitious projects, trainings and tools you need to flourish
  • Google Cloud Partner of the Year - for going above and beyond for customers

We are looking for Expert Android Consultant who will work on a project for major bank on a Polish market.

,[New features development, Automated testing, Backend and API integration, Creation of documentation, Cooperation with team and stakeholders on Client's side] Requirements: Android, Kotlin, Android SDK, Android Studio, Java, MVVM, Clean Architecture, UI, Kotlin Coroutines, Integration test, Mockito, MockK, JUnit, REST API, SOAP, Retrofit, Firebase, ROOM, CI/CD, Jenkins, GitLab CI Additionally: Life insurance, Sport subscription, Training budget, Private healthcare, International projects, Free coffee, Bike parking, Free snacks, Free beverages, Free parking, In-house trainings.
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