Expert Android Engineer (Warszawa, PL, 00-839)

GFT Technologies
GFT Technologies

Software Engineering

Warsaw, Poland · Warszawa, Poland

Posted on Aug 11, 2026

Type of contract: Employment contract

Salary range: 18900 - 28900 PLN gross

What will you do?

You will be part of innovative projects for one of the largest mobile banking applications in Poland. In this role, you will design and develop modern Android solutions, integrate mobile applications with backend systems, and contribute to building secure, scalable and high-quality software used by millions of users.

Your tasks

  • Develop and maintain Android applications using Kotlin and Java
  • Design and implement new mobile features
  • Integrate applications with backend services
  • Write unit and integration tests
  • Ensure high code quality, security and performance
  • Participate in CI/CD processes and application releases
  • Collaborate with cross-functional teams in an agile environment

Your skills

  • At least 3 years of commercial experience in Android development with Kotlin
  • Strong knowledge of Android SDK, Android Studio, AndroidX and Material Components
  • Experience with MVVM, Clean Architecture and multi-module applications
  • Good knowledge of RxJava3 and Kotlin Coroutines
  • Experience with LiveData, Flow and StateFlow
  • Experience with REST/SOAP integrations using Retrofit and OkHttp
  • Knowledge of Firebase, Room, WorkManager and Android Architecture Components
  • Experience with unit and integration testing using JUnit, Mockito, MockK or PowerMock
  • Knowledge of Gradle, dependency management and dependency injection frameworks such as Hilt, Dagger2 or Koin
  • Experience with CI/CD tools such as Jenkins or GitLab
  • Knowledge of application security, secure data storage and performance optimization
  • Fluent Polish

Nice to have

  • Experience in banking or financial services projects
  • Experience with advanced Gradle configurations
  • Knowledge of mobile accessibility standards

We offer

  • Hybrid work in one of our locations: Lodz, Poznan, Krakow, Warsaw, Wroclaw (2 office days per week)
  • Working in a highly experienced and dedicated team
  • Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)
  • Online training and certifications
  • Access to e-learning platform
  • Work From Anywhere (up to 140 days/year abroad)
  • Social events