Senior Android HMI/Kotlin Developer (m/w/d)

Senior Android HMI/Kotlin Developer (m/w/d)

Participate in development of core IVI functionalities such as tuner, audio management, telephony, multimedia, text messaging, speech dialog system, and projection technologies provided by Apple and Google. Gain experience with Android Automotive OS and integrate cutting‑edge technologies.

Responsibilities

• Participate in requirement analysis.
• Design, create, and maintain efficient, reusable, and reliable C++/Java code from scratch.
• Implement performance and quality services.
• Identify bottlenecks and bugs, and implement solutions.

Mandatory Skills

• 5+ years of experience in Java & 5+ in Kotlin development on Android.
• Understanding of Android Application Framework.
• Excellent understanding of UI placement, layout & wireframes.
• Development experience with Android Services, AIDL & Binders.
• Usage of Design Patterns on Android (MVP, MVVM, clean architecture).
• Deep understanding of Google requirements and Android development guidelines.
• Hands‑on experience with Android Studio, SDK, Gradle & AVD.
• Knowledge of testing principles (Unit/UI tests).
• Experience writing Unit tests and Automated Tests using JUnit, Mockito, etc.
• Excellent communication skills with both internal teams and customers.
• Proven track record of contributing to at least 3 different Android projects, preferably in diverse domains (e.g., infotainment, multimedia, telephony).
• Demonstrated ability to adapt to different architectures and project requirements.
• Practical experience using Product Flavors for app customization.
• Provide accurate task estimations and contribute to sprint planning.

Nice‑to‑Have Skills

• Experience with AOSP development and Android NDK.
• Experience with creating System Applications and Home Screen applications.
• Experience with framework components like Telephony, Dialer, Network, etc.
• Development experience with System UI and Service Manager.
• Android Automotive experience and exposure.
• Experience with CI/CD pipelines (Jenkins, GitLab CI) for Android Automotive.
• Knowledge of dependency injection frameworks (Dagger/Hilt), RxJava, Coroutines.
• Proficiency in debugging tools (ADB, Systrace, Perfetto).
• Experience with Jetpack Compose.

Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

Information Technology

Industries

IT Services and IT Consulting; Motor Vehicle Manufacturing

Location

Bonn, North Rhine‑Westphalia, Germany