Senior Android Developer

We’re opening a new opportunity for Senior Android Developers to collaborate with the team on ongoing initiatives, building and evolving Android applications with modern architecture and tooling.

Location: Lisboa, Coimbra or Braga (1x on-site per week)

Responsabilities:

• Develop and maintain Android features using Kotlin (and basic Java when needed);
• Build UI with Jetpack Compose and/or XML, aligned with Material Design;
• Apply MVVM/MVI/Clean Architecture to deliver scalable, maintainable code;
• Integrate REST APIs using Retrofit/OkHttp and manage dependencies with Dagger/Hilt;
• Handle async/reactive flows with Coroutines + Flow (preferred) and support RxJava where applicable;
• Implement local persistence with Room/DataStore/SharedPreferences (including secure storage when required);
• Monitor quality using Firebase Analytics/Crashlytics and support releases via Firebase App Distribution.

Requirements:

• Languages: Kotlin (primary), Java (basic knowledge is sufficient);
• Development tools: Android Studio, Gradle;
• UI Frameworks & Components: Jetpack Compose, XML, Material Design Components;
• Architecture: MVVM, MVI, Clean Architecture;
• Jetpack Libraries (AndroidX): Navigation (app navigation), StateFlow (reactive data handling), ViewModel (lifecycle-aware UI logic);
• Networking: Retrofit (REST API communication), OkHttp (HTTP client);
• Dependency Injection: Dagger / Hilt;
• Asynchronicity: Kotlin Coroutines + Flow (preferred), RxJava / RxKotlin;
• Storage & Database: Room (SQLite wrapper), DataStor, SharedPreferences, EncryptedSharedPreferences (secure local storage);
• Analytics & Monitoring: Firebase Analytics, Crashlytics (crash reporting);
• CI/CD: Firebase App Distribution (beta testing).