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Follow the roadmap
Work through 72 questions across six topics. Mark what you can explain and track your progress.
Open the roadmapFree interview practice · Updated for .NET 10
Practice .NET interviews, don't just read about them.
A 72-question roadmap, interactive system design explainers, and practical guides to help you prepare with confidence.
Built by .NET developers, for the developer community.
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Three ways to get interview-ready
Build knowledge, explore real systems, and get ready to practice your answers out loud.
Learn by exploring
Explore interactive explainers
See how Docker, social likes, and live location systems work with visual walkthroughs and simulators.
Explore explainersNo install needed
AI mock interviewer
Copy a ready-to-use interview prompt into ChatGPT, Claude, Copilot, or another AI chat and practice with adaptive questions and feedback.
Try the interview promptOptional handbooks
Go deeper at your own pace
Explore the interview and career guides. Start with the free resources above; these handbooks are here when you want more.
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Built in the open
The .NET Interview Kit is open source.
Explore the code, follow the setup instructions, and help make interview prep better for everyone.