Senior Android Engineer (Hybrid) - Kotlin & Clean Arch

GFT TECHNOLOGIES SE; Poland; Hybrid; PLN 234,000 - 289,000; Full time

Job summary

GFT Poland is seeking an experienced Android Developer to join innovative projects on one of Poland's largest mobile banking apps. You will design and develop modern Android solutions, integrate mobile applications with backend systems, and contribute to secure, scalable software used by millions.

The role requires 3+ years of Kotlin Android experience, strong knowledge of Android SDK, MVVM, and REST integrations.

Qualifications

• 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 DI 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.

Responsibilities

• 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.

Skills

Kotlin

Android

MVVM

Clean Architecture

LiveData

Flow

StateFlow

Android SDK

Android Studio

AndroidX

Material Components

Tools

Retrofit

OkHttp

Firebase

Room

WorkManager

Android Architecture Components

JUnit

Mockito

MockK

PowerMock

Gradle

Hilt

Dagger2

Koin

Jenkins

GitLab

Security

Job description

GFT Poland is seeking an experienced Android Developer to join innovative projects on one of Poland's largest mobile banking apps. You will design and develop modern Android solutions, integrate mobile applications with backend systems, and contribute to secure, scalable software used by millions.

The role requires 3+ years of Kotlin Android experience, strong knowledge of Android SDK, MVVM, and REST integrations.