Optimus Search has partnered with a leading player in the financial services industry, known for their innovative FinTech solutions that serve over 16,000 independent advisors and brokers. Their forward-thinking approach is shaping the future of the advisory, brokerage, and portfolio management sectors. As part of their continued growth, they are looking for a talented Backend Developer (m/f/d) to join their team and help build the next generation of financial software. Your Role: Support and contribute to the development and enhancement of the company's billing system. Collaborate closely with product owners throughout the entire development process. Work alongside front-end developers to ensure seamless integration and functionality. Ensure that applications remain stable, high-performing, and easy to maintain. Serve as a 3rd-level contact for any technical questions related to the system. What We’re Looking For: A completed technical degree or subject-specific training. Professional and project experience in software development and software testing. In-depth knowledge of T-SQL and C# development. Strong understanding of relational SQL databases. Basic familiarity with (X)HTML, Java/JavaScript, APIs, and PowerShell. Experience with version control systems and integrated development environments (IDEs). A team player with a strong sense of initiative and responsibility. A structured working method, along with strong analytical and conceptual thinking abilities. A desire for continuous professional development .