We are looking for an experienced Senior .NET Software Engineer to join our technology team and play a key role in the development and optimisation of our trading platform. This is a hands-on position where you'll work across backend services and back-office applications, contributing to high-quality, high-performance enterprise software in a regulated trading environment.
Your Responsibilities
* Design, develop, optimise, and maintain the backend of our trading platform using .NET (C#)
* Develop, optimise, and quality-assure back-office front-end applications
* Independently implement technical specifications in close collaboration with colleagues
* Support ongoing operations, including monitoring, troubleshooting, and issue resolution
Your Profile
Professional Requirements
* Excellent knowledge of .NET and C#
* Extensive experience developing professional enterprise software
Personal Qualities
* Comfortable working independently and taking ownership
* Strong initiative, responsibility, and dedication
* Team-oriented mindset with a proactive approach
* Enthusiastic, motivated, and eager to learn
* Excellent German and good English language skills
Nice to Have
* Experience with .NET Core, messaging frameworks (gRPC, AMQP, etc.)
* Familiarity with CI/CD tools (Azure DevOps) and unit testing frameworks
* Experience with SQL Server, Python, or PowerShell
* Background in building high-performance server applications (multithreading, profiling)
* Front-end development experience with WinForms (DevExpress)
* Experience working in agile environments (Scrum)
* Knowledge of banking, stock exchange, or trading systems
What We Offer
* Monthly gross salary between €4,500 and €5,500 (paid 14x per year), depending on qualifications
* Performance-based bonus
* Company pension scheme and company life insurance
* Phantom share participation
* Restaurant vouchers (€8 per working day)
* 28 days annual leave plus an additional day off on your birthday
* Free coffee, fruit, and drinks
If you're passionate about building robust, high-performance software and want to work in a technically challenging trading environment, we'd love to hear from you.