Staff App Engineer - Discovery & Consideration (all genders)

About You; Hamburg, Berlin; Remote; EUR 72,000 - 98,000; Full time

Benefits offered by this job

Benefits page

Job summary

ABOUT YOU, based in Hamburg and Berlin, is recruiting a Staff App Engineer to build and enhance our mobile app using Flutter. You will shape architecture, set coding standards, and collaborate with Product, Design, Test, Backend, and Web teams to deliver a seamless shopping experience.

The role requires 4+ years in programming with Dart/Flutter, strong ownership, and leadership. Nice-to-have skills include mobile testing, gRPC, Firebase, Sentry, and DataDog.

Qualifications

• 4+ years of programming experience, including at least a year of app development.
• Expert-level knowledge of Dart and Flutter.
• Experience with CI/CD and testing (unit and golden tests).
• Strong ownership, self-drive, and leadership with good communication.

Responsibilities

• Build and maintain a high‑quality mobile app for iOS and Android using Flutter.
• Contribute to architectural decisions and set coding standards for the team.
• Work closely with Product Managers, Designers, Testers, and other teams (Backend and Web) in a cross‑stack environment.
• Introduce new technologies, tools, or processes that improve developer productivity and product quality.
• Debug performance and reliability issues across the stack.

Skills

Dart

Flutter

CI/CD

Unit tests

Golden tests

Performance profiling

Leadership

Communication

Education

Bachelor's degree in Computer Science

Tools

GitHub Actions

fastlane

Sentry

DataDog

Figma

Job description

Staff App Engineer - Discovery & Consideration (all genders)

• Full-time
• Compensation: from EUR 85,000 - yearly

ABOUT YOU is one of Europe’s fastest growing e-commerce companies. Based in Hamburg and Berlin, we operate at the intersection of fashion and technology. Our mission is to rethink online shopping and make it personal and seamless. This takes more than good ideas. It takes people who take initiative and challenge the status quo. We believe in flat hierarchies, direct communication, and pragmatic decisions. No long approval chains. Just ownership, trust, and clear responsibility. We work hard, but we also believe in enjoying the ride together - over team lunches, afterwork drinks, company events, or a quick coffee in between meetings. If this sounds like you, ABOUT YOU could be the right place to bring in your perspective.

• Build and maintain our high-quality mobile application for iOS and Android using Flutter
• Contribute to architectural decisions and set coding standards for the team
• Work closely with Product Managers, Designers, Testers, and other teams (Backend and Web) in a cross-stack environment
• Introduce new technologies, tools, or processes that improve developer productivity and product quality
• Debug performance and reliability issues across the stack

Requirements

• You have 4+ years of programming experience, including at least a year of app development. A Bachelor's degree in Computer Science or a similar technical degree is a plus, but we prioritize skill
• You have expert-level knowledge of Dart and Flutter. You're experienced with CI/CD (e.g., fastlane, GitHub Actions) and unit and golden tests. You also have a strong understanding of performance optimization and profiling
• You have strong ownership, self-drive, and leadership skills. You are a team player with excellent communication and problem-solving abilities

Nice to have

• Mobile native experience (iOS and/or Android) or mobile automated testing
• Experience with gRPC, Firebase, and monitoring tools like Sentry or DataDog
• Figma knowledge and open-source experience

Your perks at a glance: Visit our benefits page .

A Place Where You Can Be You

We take it as our responsibility to create an environment where everyone feels welcome, exactly as they are.

Different backgrounds and perspectives make us stronger and shape our culture in ways that matter.

What we stand for internally, we stand for as a brand: acceptance, inclusion, and a fairer approach to fashion.