Senior Android Engineer - Banking Apps, Kotlin & MVVM

GFT Technologies Poland; Poznań; Hybrid; PLN 110,000 - 170,000; Full time

Benefits offered by this job

Hybrid work locations (Lodz, Poznan,kr

2 office days per week

Medical + sport subsidies

Lunch subsidy

Life insurance

Online training & certifications

Access to e-learning platform

Work From Anywhere up to 140 days/year

Job summary

GFT Technologies Poland is seeking a skilled Android developer to design and build modern Android solutions for a major Polish mobile banking app.

You will work on Kotlin/Java apps, implement features, integrate with backend services, and ensure security and performance in an agile team. Fluency in Polish is required and hybrid work is offered across multiple Polish locations, including Poznan.

Qualifications

• Minimum 3 years of commercial 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

Android Kotlin

Java

Android SDK

Android Studio

AndroidX

Material Components

MVVM

Clean Architecture

Multi-module apps

RxJava3

Kotlin Coroutines

LiveData

Flow

StateFlow

Retrofit

OkHttp

Firebase

Room

WorkManager

JUnit

Mockito

MockK

PowerMock

Gradle

DI frameworks (Hilt/Dagger2/Koin)

CI/CD (Jenkins/GitLab)

Security & performance

Polish language

Tools

Retrofit

OkHttp

Jenkins

GitLab

Gradle

Hilt/Dagger2/Koin

Job description

GFT Technologies Poland is seeking a skilled Android developer to design and build modern Android solutions for a major Polish mobile banking app.

You will work on Kotlin/Java apps, implement features, integrate with backend services, and ensure security and performance in an agile team. Fluency in Polish is required and hybrid work is offered across multiple Polish locations, including Poznan.