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Principal App Engineer - App & Web(m/w/x)

Hamburg, Berlin
Full-timeWith Home OfficeSenior

Building and maintaining mobile apps with Flutter, aligning with backend and web stacks. Expert Dart & Flutter knowledge required. Solution architect role in new projects.

Requirements

  • 8+ years programming experience
  • 3+ years native/hybrid App development
  • Expert Dart & Flutter knowledge
  • CI/CD experience (Google Play Store, App Store deployments)
  • Unit and Golden Tests experience
  • Performance optimisation and profiling experience (Flutter DevTools)
  • Mobile native experience (iOS or Android)
  • Monitoring tools experience (Firebase Crashlytics, Sentry, DataDog)
  • Figma knowledge
  • AI coding tools experience (Copilot, Cursor)
  • Backend development experience
  • Mobile automated testing experience
  • Excellent problem-solving skills
  • High autonomy and ownership
  • Strong communication skills
  • Team player
  • Web Development experience
  • DevOps experience (CI/CD pipelines, AWS)
  • gRPC experience
  • Firebase experience
  • Open-source experience

Tasks

  • Build and maintain high-quality mobile applications using Flutter
  • Participate as a solution architect in new projects
  • Implement and think through changes deeply
  • Align solutions with Shop Backend and Webstacks
  • Drive technical discussions and architectural alignment
  • Set coding standards and review pull requests
  • Mentor other engineers in the team
  • Empower the team to deliver mission-critical features
  • Contribute to architectural decisions across multiple stacks
  • Collaborate closely with Product Managers, Designers, and Testers
  • Introduce technologies and tools to improve productivity and quality
  • Debug performance and reliability issues across stacks

Work Experience

  • 8 years

Education

  • Bachelor's degreeOR
  • Master's degree

Languages

  • EnglishBusiness Fluent

Tools & Technologies

  • Dart
  • Flutter
  • Google Play Store
  • App Store
  • fastlane
  • GitHub Actions
  • Flutter DevTools
  • iOS
  • Android
  • Firebase Crashlytics
  • Sentry
  • DataDog
  • Figma
  • Copilot
  • Cursor
  • AWS
  • gRPC
  • Firebase
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