Senior Android Developer

Hi. We’re a team of tech -bsessed fitness fanatics, and we’ll get straight to the point: we’re building the next evolution of interactive fitness. It started with a simple idea — that maybe, just maybe, people should actually enjoy their workouts. So we started designing. From the ground up.

And we think we’ve created something that could truly change the game.

Our team includes designers who’ve shaped some of the world’s most recognisable digital products, product minds with deep experience across major tech and health platforms, and top-tier software and hardware engineers.

Everyone’s working together to help you see results, stay motivated, and actually enjoy the process.

We can’t wait to show you what we’ve been working on.

Senior Android Developer

Workplace: Warsaw ( at least 4 days per week in the office)

Role Description:

• Lead the architecture and development of a new native Android application using Kotlin.

• Implement user interfaces primarily using Jetpack Compose, ensuring a modern, responsive, and visually appealing design.

• Integrate with our existing backend by consuming data via our GraphQL API.

• Collaborate closely with iOS developers, backend engineers, designers, and product managers to understand requirements and ensure feature parity where appropriate.

• Write clean, maintainable, testable, and performant code.

• Ensure the application meets high standards of quality, stability, and performance across various Android devices and OS versions

  
  

Required Qualifications:

• Proven experience as a Senior Android Developer with a strong portfolio of shipped applications.

• Deep proficiency in Kotlin for Android development.

• Hands-on experience building UIs with Jetpack Compose.

• Strong command of Kotlin coroutines and structured concurrency (suspend functions, coroutine scopes, flows). Able to design thread‑safe, cancel‑aware, and performance‑oriented asynchronous code that integrates cleanly with Jetpack Compose and the app’s architecture.

• Strong understanding of Android architecture patterns (MVVM, MVI, etc.) and best practices.

• Experience with version control systems, particularly Git.

• Excellent problem-solving and analytical skills.

• Strong communication and collaboration abilities.

• Fluency in Polish and English is a must

Preferred Qualifications:

• Familiarity with iOS development (Swift, SwiftUI, UIKit) is a plus.

• Experience consuming GraphQL APIs on Android (e.g., using Apollo Android or similar libraries).

• Experience with dependency injection frameworks (e.g., Hilt, Dagger).

• Experience writing unit and integration tests for Android applications.

• Experience with CI/CD pipelines for Android.

• Experience working in an Agile/Scrum development environment.