Senior Software Developer – C# / .NET (m/f/x) About the Company Our client is a leading automation and security technology provider, developing innovative system solutions for industrial and commercial applications. Their integrated software and hardware products drive efficiency, safety, and digital transformation across modern infrastructures. The company values precision, collaboration, and continuous innovation. Your Responsibilities Design, architect, and develop new software features. Refactor and optimize existing codebases for performance and maintainability. Develop and evaluate new device interfaces. Conduct code reviews within the development team. Contribute to internal guilds focused on product, architecture, documentation, QA, and DevOps. Analyze and resolve software bugs and technical issues. Your Profile Degree in Computer Science or related IT qualification. Proven experience in software development with C# / .NET (version 8.0). Strong understanding of WPF and/or ASP.NET frameworks. High sense of ownership, quality, and attention to detail. Excellent communication skills in German (C1 minimum) and good command of English. Seniority level Mid-Senior level Employment type Full-time Job function Information Technology Location: Frankfurt am Main, Hesse, Germany #J-18808-Ljbffr