Senior Mobile Engineer - Android (f/m/d)

## About the role - Development and maintenance of the Moss mobile applications based on product requirements - Development and maintenance of backend services supporting mobile applications, in alignment with existing architecture and systems - Contributing to the design and evolution of the Android mobile application architecture - Supporting and executing mobile app releases via Google Play ## About you ### Must Have's - Strong proficiency in Kotlin - Kotlin Coroutines & Flows & Jetpack Compose - Android Lifecycle - deep understanding of Activity/Fragment lifecycle, process death, configuration changes - Clean Architecture - clear separation of layers (domain, data, presentation), use cases, repository pattern - Familiarity with Google Play release process - Knowledge of mobile testing strategies - Hands-on experience using AI coding agents to accelerate development - Critical review of AI-generated code - ability to catch regressions, architecture violations, hidden side effects, and subtle bugs in generated output - Strong verbal and written communication skills in English - Ability to articulate technical decisions, trade-offs, and blockers clearly - Comfortable working autonomously with minimal hand-holding ### Nice to Have's - Experience working in a startup environment (comfort with ambiguity, fast iteration) - iOS development knowledge (Swift/SwiftUI) - ability to contribute to or review iOS codebase - Spring Boot / backend development - supporting mobile backend services - Experience with CI/CD pipelines ## About Moss Moss is a SaaS scale-up founded in Berlin, with a team of 300+ people from 50+ nationalities in 5 offices across Europe. Our ambition is bold: to power every SMB's spend across Europe - fully digital, AI-driven, and seamlessly integrated for complete control. To date, over 5000 businesses in Germany, Netherlands and the UK use Moss' leading spend management product, with modules suc