Expert Android Consultant

GFT Technologies Poland; Kraków; On-site; PLN 120,000 - 180,000; Full time

Job summary

GFT Technologies Poland seeks a skilled Android Developer to design and build modern Android applications using Kotlin and Java in a fast-paced, collaborative setting. You will integrate apps with backend services and contribute to secure, scalable software used by millions of users.

You will work with Android Studio, MVVM, and modern architecture, ensuring high-quality code, robust testing, and efficient CI/CD releases within an agile team in Kraków.

Qualifications

• At least 3 years of commercial Android development experience.

Responsibilities

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

Skills

Android Kotlin/Java

MVVM

Clean Architecture

RxJava3

Kotlin Coroutines

LiveData/Flow/StateFlow

REST/SOAP (Retrofit/OkHttp)

Firebase/Room/WorkManager

JUnit/Mockito/MockK/PowerMock

Gradle

Dependency Injection (Hilt/Dagger/Koin

CI/CD (Jenkins/GitLab)

Android Studio/Android SDK

Security & Performance

Tools

Retrofit

OkHttp

Firebase

Room

WorkManager

Android Architecture Components

Gradle

Jenkins

GitLab CI

Job description

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.

• 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
• 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