Senior Android Developer

TL;DR

Senior Android Developer (Kotlin): Take full ownership of the Android application, driving its architecture, scalability, and long-term evolution with an accent on modern Android architecture, Jetpack Compose, and performance-focused delivery. Focus on designing modular, testable app architecture, leading CI/CD and release management, and collaborating cross-functionally to build a world-class mobile product.

Location: Cologne

Salary: 75.000 - 102.000 €

Company

Europe’s No.1 e-pharmacy building a healthy, collaborative environment with modern technology.

What you will do

• Lead the design and development of scalable, maintainable Android applications using modern architecture (MVVM/MVI/Clean Architecture).
• Drive adoption of Jetpack Compose for declarative, responsive UI development.
• Define and evolve the app architecture with strong focus on modularization, code quality, testing, and performance optimization.
• Own the delivery pipeline, including CI/CD, unit/UI testing, and release management.
• Ensure app stability using monitoring, logging, and performance tracking.
• Collaborate with product managers, designers, and backend engineers to deliver user-centric features.

Requirements

• Extensive Android development experience with strong expertise in Kotlin.
• Deep understanding of the Android SDK and modern Android development practices.
• Hands-on experience with Jetpack Compose, Coroutines & Flow, and dependency injection (Hilt/Dagger).
• Experience with REST APIs using Retrofit/OkHttp.
• Strong knowledge of clean architecture principles, design patterns, and modularization.
• Experience with testing (JUnit, Espresso, MockK) and CI/CD pipelines.

Culture & Benefits

• Work from home option: arrange your workplace individually if office presence is not required, up to 20 days per year anywhere in the EU.
• Sports membership support via Urban Sports Club.
• Mental health support with anonymous, free psychologist help.
• Deutschland Ticket fully covered.
• Support for personal development through in- and external trainings.