Patronus Group

Mobile Developer – Android, Wear OS

Patronus Group

full-time

Posted on:

Location Type: Hybrid

Location: Berlin • 🇩🇪 Germany

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Job Level

Mid-LevelSenior

Tech Stack

AndroidFlutteriOSIoTJavaKotlinReactReact NativeSwift

About the role

  • Build and improve Android apps that delight users and enhance daily lives
  • Develop for Wear OS and Android smartwatches with seamless phone–watch synchronization
  • Dive deep into the Android system layer when needed: enabling root-level features, system integrations, and custom device behaviors
  • Explore and implement OS-level modifications, such as background services, optimized system processes, or device-specific enhancements
  • Optimize for performance, battery, and UX across mobile and wearable platforms
  • Collaborate cross-functionally with product, design, and engineering to bring high-impact features to life
  • Apply best practices for testing, CI/CD, and production monitoring to ensure reliability and scalability

Requirements

  • Strong track record in Android development using Java/Kotlin
  • Experience building both smartphone apps and smartwatch/Wear OS apps
  • Hands-on experience with Android system modifications (AOSP, custom ROMs, OEM integrations, root-level access)
  • Solid understanding of low-level Android concepts like permissions models, system services, and background execution limits
  • Strong debugging and performance profiling skills — at both the app and system level
  • Nice-to-have: iOS (Swift) development experience
  • Knowledge of cross-platform frameworks (Flutter, React Native, KMP)
  • Strong sense for UX/UI design
  • Exposure to health or IoT domains
Benefits
  • Urban Sports Club membership for your fitness
  • Family & Friends Coupon for the Patronus watch
  • 26 vacation days in the first year, 28 days in the second year, and 30 days from the third year onwards
  • Annual Learning & Development Budget
  • Clearly structured Career Framework for your professional development
  • 360-degree feedback sessions for continuous improvement
  • Exclusive corporate benefits for your advantage
  • Discounts at restaurants near the office
  • Freedom to choose your hardware
  • Modern office in the vibrant district of Friedrichshain
  • Job Ticket for a stress-free daily commute
  • Up to 2 days per week of working from home
  • Regular company and team events strengthen our sense of community
  • Team spirit over elbow mentality – achieving more together
  • Quarterly company brunches to connect and celebrate

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
Android developmentJavaKotlinWear OSAOSPcustom ROMsroot-level accessdebuggingperformance profilingcross-platform frameworks
Soft skills
collaborationUX/UI designproblem-solving