Senior Fullstack Developer (m/f/d), Berlin
Short description
We are looking for you
As a Senior Fullstack Developer, you will actively shape the technological future of our digital investment platform. You will develop new features, services, and interfaces that significantly enhance the user experience for investors and project partners – from concept and architecture to implementation. Leveraging your fullstack expertise across both backend and frontend, you will collaborate with our developers and product owners to drive innovative solutions.
Your technical insight, eye for clean code and high-performing applications, and experience with modern cloud and platform technologies make you a key architect of our product landscape.
You will be responsible for
Design and implement new modules, APIs, and features (backend & frontend)
Take technical ownership of complex subprojects
Optimize system performance and scalability
Ensure high code quality through testing (unit, integration) and code reviews
Mentor junior developers and share your knowledge within the team
Help shape architecture decisions (microservices, cloud infrastructure, API design)
What we offer
A responsible role with creative freedom in an innovative FinTech company
Flat hierarchies, agile processes, and short decision paths
Personalized training and development opportunities
An experienced, helpful, and fun team
Flexible working hours and hybrid work setup
Attractive compensation & company pension scheme
And of course: fresh coffee every day!
To be successful in this role you will need
Several years of experience in fullstack development, ideally in a .NET environment
Strong knowledge of C# / .NET Core, JavaScript / TypeScript, React or Angular
Experience with relational databases (e.g., SQL Server, PostgreSQL) and ORM frameworks
Familiar with modern DevOps tools (Docker, CI/CD, Azure or AWS)
Quality-driven, structured, and self-motivated way of working
Agile mindset and experience with Scrum or Kanban
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