Senior Software Engineer (IDE Core Team) Apply for the Senior Software Engineer (IDE Core Team) role at JetBrains. At JetBrains, we're passionate about delivering powerful tools that help developers succeed. As part of the .NET IDE Core team, you'll shape the future of .NET development by improving and expanding support for ASP.NET in Rider and ReSharper. The ASP.NET web stack is the most widely used technology among .NET developers, making it crucial for our tools to provide robust, fast, and intuitive support for these frameworks. As a Senior Software Engineer, you’ll work on exciting new features for Razor/Blazor markup, general C# backend development, and related technologies, while also reworking and improving our existing codebase to meet modern performance and usability standards. In This Role, You Will Design and implement new features for ASP.NET web stack support. Refactor and optimize existing code to improve performance and reliability. Collaborate closely with other teams to ensure high-quality, consistent support for ASP.NET web technologies across Rider and ReSharper. Work on tackling complex technical challenges, including enhancing tooling for ASP.NET developers and improving integration with modern .NET web applications. Contribute to performance improvements, ensuring our .NET IDEs remain fast and efficient while handling the complexities of web projects. Keep up with the latest advancements in ASP.NET, Razor, Blazor, and related web technologies to incorporate best practices into our .NET IDEs. We will be happy to have you on our team if you have: 5+ years of experience in software development, with a focus on .NET technologies. Knowledge of the ASP.NET framework. Proficiency in C# and experience with modern .NET development. Strong problem‑solving skills and a passion for improving code quality and performance. Experience working with complex, legacy code and refactoring it to meet the latest requirements. Good communication skills and the ability to work collaboratively in a fast‑paced environment. Proficiency in English, both written and spoken. We process the data provided in your job application in accordance with the Recruitment Privacy Policy. Seniority level Mid‑Senior level Employment type Full‑time Job function Other Software Development Referrals increase your chances of interviewing at JetBrains by 2x. Get notified about new Summer Staff jobs in Munich, Bavaria, Germany. #J-18808-Ljbffr