Develop, maintain and optimize mobile applications using Flutter and Dart — from implementing new features to sustainably improving existing codebases
Actively contribute to technical concepts and architectural decisions and further develop our mobile stack, including development standards, processes and workflows
Evaluate and classify technology options (e.g., Flutter vs. native approaches, Kotlin Multiplatform) — both internally and in technical client consulting on architecture, platform strategy and feasibility
Conduct code reviews and ensure sustainable code quality
Evaluate and integrate new technologies — including AI-assisted development tools (e.g., Copilot, Cursor, Claude) — and actively transfer knowledge within the team

Several years of professional experience (at least 3 years) in software development in the mobile domain
Strong knowledge of Dart and Flutter and experience with multiple production Flutter projects
Understanding of modern app architectures and Clean Code/Clean Architecture principles (SOLID, repository pattern, Domain-Driven Design)
Experience with common Flutter ecosystem components, e.g., state management and dependency injection (such as Riverpod), HTTP communication and local data persistence
Experience with CI/CD pipelines, reproducible builds and integrating external services and backends (e.g., Firebase or Appwrite)
Ability to assess Flutter in the context of platform alternatives (Kotlin Multiplatform, Swift/SwiftUI, React Native) and provide well-founded technology recommendations
Experience with agile methodologies (Scrum/Kanban), strong communication skills, team spirit and a willingness to actively share knowledge
Consulting skills and the ability to act as a technical contact person in client projects
Analytical mindset, structured working style and commitment to continuous professional development
Business-fluent German and English

Varied tasks through diverse, meaningful projects
Room for innovation: actively help shape our tech stack, processes and the introduction of new technologies
Modern working environment with flexible location within Germany (100% remote possible)
Trust-based working hours and flat hierarchies
30 days of annual leave
Company pension scheme and private supplementary health insurance
Dog-friendly office in the heart of Hamburg
Fresh fruit, muesli bar, free beverages — plus PlayStation & foosball
Bike leasing and Deutschlandticket if you regularly work from the office
Regular team events, summer parties and Christmas celebrations

Senior Flutter Software Developer

Key skills