Staff App Engineer (Senior)

ABOUT YOU Germany
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AI Summary

Assume leadership responsibilities to support in building a fast and intuitive shopping app using a brand-new tech stack. Build and maintain high-quality mobile applications, drive technical discussions, and lead architectural alignment. Empower the team to deliver mission-critical features in quality and time.

Key Highlights
Build and maintain high-quality mobile applications
Drive technical discussions and lead architectural alignment
Empower the team to deliver mission-critical features
Key Responsibilities
Build and maintain high-quality mobile applications
Drive technical discussions and lead architectural alignment
Empower the team to deliver mission-critical features in quality and time
Technical Skills Required
Dart Flutter CI/CD Google Play Store App Store fastlane GitHub Actions Unit and Golden Tests Performance optimisation and profiling Firebase Crashlytics Sentry DataDog Figma AI gRPC Open-source
Benefits & Perks
Hybrid working
Fresh fruit every day
Free access to code.talks
Exclusive employee discounts
Free drinks
Language courses
Laracast account for free
Company parties
Mobility subsidy
State-of-the-art technology
Central Location
AY Academy Feedback Culture
Job Bikes
Company pension
Dog-friendly office
Nice to Have
Experience in Web Development
DevOps experience
gRPC experience
Firebase experience

Job Description


We are currently looking for a skilled Staff App Engineer (m/f/d) with a passion to assume leadership responsibilities to support us in building the fastest & most intuitive shopping app using a brand-new tech stack onsite in Hamburg or Berlin!

The App & Web Team constantly improves the App, Mobile Website and Desktop Website. These big-scale products are each visited by over 11M active users every month. The team’s focus is to provide our customers the most inspiring, convenient, intuitive, and easy-to-use shopping experience. They constantly challenge themselves to raise the bar of what is “state of the art” in customer-facing products.

  • Flutter

What you will do

  • Build and maintain a high-quality mobile application using Flutter for iOS and Android platforms
  • Participate as a solution architect from the very beginning of new projects; you will not just implement changes but think them through deeply and be responsible for the implementation across all stacks.
  • Gain significant exposure to other teams, such as Shop Backend and Webstacks, to align solutions and drive the tech stack of all teams forward.
  • Drive technical discussions forward with the team and lead architectural alignment.
  • Lead by example and set coding standards, review pull requests and mentor other engineers in the team.
  • Empower the team to deliver mission-critical features in quality & time.
  • Contribute to architectural decisions across multiple stacks.
  • Closely collaborate with Product Managers, Designers, Testers and other stacks (Backend and Web).
  • Introduce new technologies, tools or processes that improve developer productivity and product quality.
  • Debug performance and reliability issues across the stacks

Who you are

  • 8+ years of programming experience, with at least 3 years of native or hybrid App development experience.
  • Expert-level Dart & Flutter knowledge.
  • CI/CD experience – Google Play Store, App Store deployments (fastlane, GitHub Actions or similar)
  • Experience with Unit and Golden Tests.
  • Experience of performance optimisation and profiling (using Flutter DevTools).
  • Mobile native experience – iOS or Android.
  • Experience with monitoring tools – Firebase Crashlytics, Sentry, DataDog etc.
  • Figma knowledge.
  • Experience using AI (e.g. Copilot or Cursor) to speed up coding experience.
  • Experience with Backend development.
  • Mobile automated testing.
  • Excellent problem-solving: You can solve conceptual, non-standard problems and exercise solid judgment based on analyzing multiple sources of information.
  • High autonomy and ownership: You are motivated, take matters into your own hands, and can lead a complex project or process with little oversight from your manager.
  • Strong communicator: You can communicate transparently, honestly, and effectively with both technical and non-technical stakeholders (e.g. Product, Design).
  • Team player: You actively share knowledge, inspire other team members, and aim to fulfill team goals.

Nice to have

  • Experience in Web Development
  • DevOps experience (e.g. CI/CD pipelines, AWS)
  • gRPC experience
  • Firebase experience
  • Open-source experience

Benefits

  • Hybrid working
  • Fresh fruit every day
  • Free access to code.talks
  • Exclusive employee discounts
  • Free drinks
  • Language courses
  • Laracast account for free
  • Company parties
  • Help in the relocation process
  • Mobility subsidy
  • State-of-the-art technology
  • Central Location
  • Company pension
  • Dog-friendly office
  • AY Academy
  • Feedback Culture
  • Job Bikes

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