Free · Your first mock interview is on us
AI Mock Interview
Practice the interview before it counts. A voice AI interviewer asks the questions, follows up on what you say and reviews every answer, so the real interview feels like your second one.
How it works
How an AI mock interview works
An AI mock interview is a practice interview with an AI interviewer instead of a person. It runs like the real thing, from the first question to the feedback.
- 01
Pick your interview round and level
Choose the round you want to practice and your level: entry, mid or senior. No scheduling and no waiting. Your slot is whenever you are ready.
- 02
Talk it through with the AI interviewer
A voice AI interviewer asks the questions and follows up on what you say, the way a real interviewer would. Rounds that need it come with a live code editor or a design board.
- 03
Get your scorecard
When you finish, you get feedback on the round: the strengths you showed and the specific things to improve.
- 04
Practice again
Fix one thing, go again and watch your answers get sharper. Repeat your weakest round until it feels easy.
Pick your interview round
Every round runs at entry, mid or senior level, and your first mock interview on each one is free.
Data Structures & Algorithms
Solve a problem in a live editor while explaining your approach out loud.
Practice freeLow Level Design
Model classes and interfaces, and defend your design choices.
Practice freeHigh Level System Design
Design a system on a board, from requirements to scale.
Practice freeFull Stack Engineering
Frontend and backend problems with follow-ups on your trade-offs.
Practice freeData Engineering
SQL, pipelines and data quality, explained as you go.
Practice freeCloud Engineering
Architecture, automation and security on any cloud.
Practice freeComing soon
- Behavioral & HR
- Sales
- Marketing
- Product Manager
- Customer Service
- Business Analyst
An AI interviewer that feels like the real thing
Reading questions off a list isn't interview practice. A good mock interview recreates the pressure, so the AI interviewer behaves like a person on the other side of the table.
It follows up
Vague answer? Expect a follow-up question, just like a human interviewer would ask.
It's timed
Every round runs on the clock, so you practice under real pressure.
You answer out loud
Speaking your answer is harder than writing it. That's exactly what you need to practice.
It tells you what to fix
Your scorecard points to the specific things that cost you, not generic advice.
Got an AI interview from an employer? Practice one first
Companies in every field now screen candidates with AI interviews, on platforms like HireVue, Mercor and micro1. The format catches people out: talking to an AI, thinking out loud, handling follow-ups with no friendly face to read. Rehearse the format here, so the AI job interview that counts isn't your first one.
From practice to an offer
Companies hiring on Roundz interview candidates with the same AI interviewer you practice with. Get comfortable here, then apply for real roles and take the interview when you're ready.
Browse open jobsAI mock interview vs other ways to practice
Every kind of interview practice helps. They differ in how often you can do it and how honest the feedback is.
| Feature | Practicing alone | With a friend | Human coach | AI mock interview |
|---|---|---|---|---|
| Available any time | Yes | Sometimes | Booked in advance | Yes |
| Cost | Free | Free | Paid per session | First interview free |
| Follow-up questions | No | Sometimes | Yes | Yes |
| Structured feedback | No | Rarely | Yes | Yes, after every round |
| Easy to repeat | Yes | No | Costly | Yes |
How to get the most from mock interview practice
Say every answer out loud
Answers that sound fine in your head often fall apart when spoken. The point is to hear yourself.
Use STAR for your stories
For questions about your experience, describe the Situation, the Task, the Action you took and the Result. Keep it under two minutes.
Think out loud
Interviewers score how you reason, not just where you land. Narrate your approach before you commit to it.
Treat it like the real thing
Quiet room, camera on, no notes. The closer the practice, the calmer the real interview.
Review the scorecard, then repeat
Pick the one thing that cost you most, fix it, and run the same round again.
AI mock interview FAQ
›What is a mock interview?
A mock interview is a practice interview that copies the format of a real one: the same kind of questions, the same time limit and the same pressure, without anything riding on the result. It's the most reliable way to find weak spots before an employer does.
›What is an AI interview?
An AI interview is an interview run by software instead of a person. An AI interviewer asks the questions by voice, listens to your answers, asks follow-up questions and evaluates how you did. More and more companies now use AI interviews to screen candidates, for all kinds of roles.
›How does an AI mock interview work on Roundz?
You pick an interview round and your level, check your microphone, speakers and camera, and start. The voice AI interviewer runs the round, follows up on your answers and, where the round needs it, gives you a code editor or a design board. When you finish, you get a scorecard with your strengths and what to improve.
›Is the AI mock interview free?
Yes. Your first mock interview on each interview round is free. After that you can book more rounds on the pricing page.
›Which interview rounds can I practice?
Today you can practice Data Structures & Algorithms, Low Level Design, High Level System Design, Full Stack Engineering, Data Engineering and Cloud Engineering rounds. Rounds for behavioral and HR, sales, marketing, product, customer service and business analyst roles are coming soon.
›What do I need?
A laptop or desktop with a working microphone, speakers or headphones, and a camera. Before the interview starts, a quick setup checks all three for you.
›How is my interview evaluated?
The AI evaluates your answers against what interviewers look for in that round, including how you reason, how clearly you communicate and how you handle follow-up questions. Your scorecard lists the strengths you showed and the areas to work on.
›Can an AI mock interview replace a human mock interview?
Not entirely. A human coach is still better at nuanced, personal advice. An AI mock interview is available whenever you are, costs far less and is easy to repeat, which makes it the fastest way to build the habit and the confidence.
›What happens to my recording?
Before the interview, you're asked to consent to audio and video recording. Recordings and interview data are used only to evaluate your interview, as described in our privacy policy.
Walk in already warmed up.
Rehearse with the AI before the interview that matters. Your first mock interview is free.
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