Expert Android Consultant

GFT TECHNOLOGIES SE; Poland; On-site; 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

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Date: Aug 11, 2026

Location: Warszawa, PL, 00-839 Kraków, PL, 30-302 Łódź, PL, 90-118 Poznań, WP, PL, 61-569

Working place: Hybrid

Type of contract: B2B contract

Salary range: 170 - 210 PLN/H

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.

• 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

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