Senior Software Developer (Rider)

Jetbrains

Belgrade, Serbia; Berlin, Germany; Limassol, Cyprus; Munich, Germany; Paphos, Cyprus; Prague, Czech Republic; Remote, Germany; Warsaw, Poland; Yerevan, Armenia (Berlin, Limassol, Munich, Paphos, Prague, Warsaw, Yerevan) Remote permanent

Posted: January 15, 2026

Required Skills

Job Description

JetBrains Rider is a powerful cross-platform IDE for .NET development that supports web, desktop, and mobile technologies, as well as game development platforms like Unity and Unreal Engine. It combines the intelligence of ReSharper and the power of the IntelliJ Platform to offer developers a seamless and productive coding experience.

We’re looking for a skilled .NET, Java, or Kotlin Developer who is proactive, self-disciplined, and passionate about enhancing the development experience for current technologies and introducing exciting innovations in emerging areas, including AI-powered tools.

Depending on your skills and interests, you may join one of Rider’s key subteams:

• Rider Core, which focuses on the foundation of the IDE – project systems, editor, startup performance, navigation, and other essential subsystems.

• Rider Execution, the team behind the user experience around running, debugging, and managing application processes across different environments.

You’ll play an important role in shaping Rider’s future and be directly involved in the evolution of the IDE.

In this role, you will:

• Develop new functionalities and improve Rider’s existing ones using .NET (mainly C#) for the backend and the JVM (mainly Kotlin) for the frontend.

• Occasionally contribute to AI-powered features, depending on project needs.

• Monitor and optimize performance of all features.

• Write clean, efficient, and maintainable code.

• Collaborate with internal teams to design and implement features for Rider and other IntelliJ-based IDEs.

We’ll be happy to have you on our team if you:

• Have at least five years of experience in C#, Java, or Kotlin development.

• Have extensive experience working with JetBrains IDEs.

• Enjoy solving complex and challenging problems.

• Understand the algorithms behind your code.

• Work well in a team, value different opinions, and support your ideas with clear reasoning.

It would be a bonus if you have:

• Experience developing complex projects using .NET-related technologies, like ASP.NET, Razor, Blazor, WPF, Avalonia, MAUI, etc.

• Familiarity with front-end technologies like React, Angular, NodeJS, etc.

• Familiarity with cloud development technologies like Azure, AWS, etc.

• Knowledge of DevOps practices, CI/CD pipelines, and containerization tools like Docker.

• Contributions to open-source projects.

• Familiarity or hands-on experience with development compilers or code analysis technologies.

• Interest in or experience with AI-powered developer tools.

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