Full Stack Developer gesucht in Berlin

• Develop and maintain cross-platform mobile applications using Flutter for iOS, Android and Huawei.
• Design, implement, and operate backend services in Python on AWS Serverless (e.g. Lambda, API Gateway, EventBridge).
• Own features across the full stack - from mobile UI and state management (e.g. Stacked MVVM, Riverpod, Bloc) to backend logic, APIs, and data persistence.
• Design and integrate RESTful APIs for mobile and web clients.
• Apply test-driven development, including unit + integration testing (e.g. Fluttium, Patrol)
• Collaborate closely with product management, UX, and other engineering teams.
• Contribute to architectural decisions for mobile applications, backend services, and cloud infrastructure.
• Ensure code quality through testing, code reviews, and clean architecture principles.
• Support CI/CD pipelines and cloud-native deployment workflows.
• Monitor, debug, and optimize applications in production with a focus on reliability, performance, and cost efficiency.

• A completed university degree in computer science, software engineering, business informatics, or a comparable field.
• 3+ years of professional experience in mobile development, backend development, or fullstack engineering.
• Strong hands-on experience with Flutter for mobile app development.
• Solid backend experience with Python, ideally in a serverless AWS environment.
• Experience designing and consuming REST APIs.
• Good understanding of cloud-native architectures and distributed systems.
• A mindset that goes beyond a single layer - you enjoy understanding and shaping both mobile and backend systems.
• Very good English communication skills.

Nice to Have:

• Familiarity with AWS services such as S3, Cognito, CDK or CloudFormation/SAM.
• CI/CD & deployment tooling like Fastlane, Codemagic, or Shorebird
• Experience with clean architecture and scalable codebases (clear separation of concerns, testable code)
• Understanding of app lifecycle & system-level mobile features (background work, notifications, platform constraints)
• Knowledge of authentication and authorization concepts (OAuth2, JWT).
• Experience with automated testing across mobile and backend layers
• Experience with React and modern web frontend development (TypeScript).
• A product-oriented mindset and interest in building user-centric digital solutions.

• As a modern employer, we guarantee you family-friendly flexibility, for example through 50%working frome home.
• Team exchange is never neglected - you'll have the opportunity to work with highly qualified colleagues and learn from one another.
• Modern equipment enables you to achieve maximum success in our projects - and we love celebrating those successes together as a team.
• Our stylish office in Berlin Xberg, located right on the Spree with direct access to the water, is also definitely worth mentioning.
• We want our employees to be able to relax and recharge, which is why we offer 30 days of vacation.
• Employee discounts in the Würth Online Shop, company contributions to your BVG ticket and Wellpass membership, as well as the best coffee in Berlin, are just a few of the additional benefits you'll enjoy with us.