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AI C# and .NET interviewer
Async, LINQ, ASP.NET Core and EF Core — practice the .NET questions that separate users from experts.
Free 10-minute interview with a full report. Paid plans run full-length sessions.
C# and .NET interview questions you might get
A sample of the starting questions. The live interview follows up on your answer, so no two sessions go the same way.
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Why can calling .Result on a Task deadlock?
What it tests: Async internals.
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What's the difference between IEnumerable and IQueryable in EF Core?
What it tests: Query execution.
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Explain scoped, transient and singleton lifetimes. What breaks if you mix them?
What it tests: DI lifetimes.
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Your API makes 101 database queries for one request. Why?
What it tests: N+1 detection.
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When would you use a record instead of a class?
What it tests: Modern C#.
How a session works
About 20–30 minutes from setup to report. End any time and you still get feedback on what was covered.
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Set your target
Pick a role, level and stack. Add a job description or your resume if you want questions about your real projects.
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Answer live
Speak or type. The interviewer follows up on thin answers, raises the difficulty when you're doing well and switches to code when it fits.
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Read the notes
A report scores every competency, quotes the answers that cost you, and gives you a prep plan for the next session.
A report that quotes you, not a pat on the back
Every score links back to something you actually said.
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Competency scores
Weighted to the role you picked, so a system design gap counts more for a senior backend role than for a frontend junior.
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STAR check on every story
See which part of each behavioral answer was missing — usually the Result.
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How you sounded
Filler words, hedging, "I" versus "we", and whether you cited real numbers — measured from your words, and compared between the first and second half of the interview.
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A prep plan
The two or three things to practice next, and a skill graph that tracks them across sessions.
Competencies — sample report
STAR — "Tell me about a missed deadline"
How you sounded
Questions
Does it cover ASP.NET Core?
Yes, by default. Remove it from the focus for language-only questions.
Will I write C#?
Yes, coding questions accept C#.
Is it for Azure roles?
Add Azure to your focus to include cloud questions.
Is it free to try?
Yes. Each month you get a free interview of up to 10 minutes with its scored report. Paid plans add full-length interviews, every track and the full 360 report.