Practice interviews,
like the real thing
Three AI interviewers read your portfolio and ask out loud,
leaving a feedback report on every answer.
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Resume
Just write.
AI polishes the wording
Write down your experience and AI reshapes it around the job post — then save it straight to an A4 PDF.
Portfolio
We score your portfolio
through a recruiter's eyes
We read it the way a recruiter does — strengths, gaps, and a ‘before → after’ fix for each.
Mock interview
Three AI interviewers who read
your portfolio and the job post
Hear each question by voice and answer out loud. The AI interviewers dig into a single answer with follow-ups, and ease you onto a new path when you get stuck. Filler words like “um…” and any hesitation are tracked as you speak.
Written when the interview ends
Every answer gets evidence and a fix — a detailed, multi-page report
From interview to report in one flow — a real interview runs longer than this demo
Add your portfolio and the job post
Drop in a URL and the AI interviewers read it
Ask and answer by voice
The AI interviewers ask out loud and analyze your delivery and fillers
Get the report
A skills radar, a delivery score, and better-answer examples
Interview report
You don't just get a score —
you get feedback
An overall score and competency graph, your spoken delivery, and for every answer what was weak and a better way to say it. Here's the full report you actually receive.
After an interview like this
Backend Developer · Junior (1–3 yrs) · 10-min interview- QYou cut the order API from 800ms to 200ms — where did the time go?
- QCaching brings consistency questions. How did you handle invalidation?
- QOne fundamentals check — what does REPEATABLE READ prevent?
You get a report like this
Interview report
Backend Developer · Junior (1–3 yrs) · 10-min interview
Overall verdict
Your numbers already clear the bar — add conviction on the fundamentals.
Biggest strength — Proving claims with numbers — 800ms to 200ms — is your sharpest weapon.
Biggest risk — Hedging with “I think...” on fundamentals cut your credibility.
Fix this today — Open every answer with the conclusion — fixable today.
Summary
- Speaking in numbers is your strength.
- On topics you know deeply, like caching, you cleared the bar — but on fundamentals you hesitated and hedged with “I think...”.
- Fixing just the two answers below would change the impression you leave.
01Competency review
Real production depth showed in your cache-invalidation answer.
“We kept a 5-minute TTL as insurance against lost events”
Suggestion — Lead with the trade-off, then your choice — it reads senior.
Your path to the bottleneck was systematic.
“I found the N+1 in the slow-query log first”
Suggestion — Add one sentence on how you verified the fix.
Answers ran long and conclusions drifted to the end.
Your third answer passed 300 characters and slid off the question
Suggestion — Conclusion → two reasons → stop. Make it muscle memory.
Precise numbers made your experience feel real.
“800ms to 200ms”, “100k orders a day”
Suggestion — Separate your contribution from the team's — it lands harder.
Honest, but short on conviction.
Two answers opened with “I'm not sure, but...”
Suggestion — Admit gaps in one sentence, then be assertive about what you know.
02Speaking delivery
12/20- Pace & rhythm
- About 250 chars/min — fine, but you speed up toward the end of answers.
- Fillers & habits
- “Um...” 7 times — clustered on the fundamentals questions.
- Confidence signals
- 3.1s average before your first word. “I think...” 4 times.
Tips to apply now
- Open every answer with the conclusion
- On unknown questions, say “let me take a second” within 2 seconds
03Strengths & fixes
Strengths
- Answers grounded in numbers
- Stayed composed under follow-up pressure
To improve
- Prepare role fundamentals
- Cut the “I think...” hedging
04Answer-by-answer feedback
Q. How did you handle cache invalidation?
7/10The strategy was sound. But raising the “lost event” case before the interviewer asked would have put you a level above.
Try answering like this
“Events delete the keys, with a 5-minute TTL as insurance against loss. For sensitive reads like payments, we skip the cache entirely.”
Q. What does REPEATABLE READ prevent?
4/10You opened with “I'm not sure, but...” — and lost credibility on an answer that was actually right. Interviewers read conviction as much as content.
Try answering like this
“It prevents non-repeatable reads. On MySQL, gap locks also block most phantom reads.”
05Until your next interview, in this order
Write your top 3 stories in STAR
Four sentences each — situation, task, action, result — then practice out loud.
Filler-removal drill
Record answers, count the “um”s, replace them with silence. 10 minutes daily.
30 fundamentals, 1-minute answers
Your lowest-scoring zone this interview — turn each concept into a 60-second answer.
Reviews
User reviews
Written by our users, in their own words.
This is the order we'd suggest
- 1
Write your resume
Impact-driven wording with AI polish
- 2
Review your portfolio
Scored on 5 dimensions with fixes
- 3
Mock interview
3 AI interviewers who read your resume and portfolio
- 4
Apply
Fold in the report and go for real
Build the resume first, and the AI interviewers will read it before they ask their questions.
Frequently asked questions
Can I use it for free?
Sign up and you get 1 free interview right away. Resume polish and portfolio review are free, and you can try a mock interview without paying — buy passes only when you want more interviews.
Do the AI interviewers really read my portfolio?
Add a portfolio URL and the AI reads it automatically, factors it into the AI interviewer lineup, and quotes your projects directly during the interview. From generating questions to scoring and the report, the whole thing is done by AI — no human reviews your work or runs the interview. Add a job post too and we check you against its requirements.
How does voice work?
You can hear each question by voice (toggle it on or off anytime), and when you press the mic and speak, your answer turns into text in real time. As you talk, fillers like “um…”, hesitation, and your pace are tracked and folded into the delivery feedback in your report. It works best in Chrome.
Where is what I write stored?
It's saved in your browser, and once you log in it syncs safely to your account. Log in on another device and your resume and interview history carry right over.
How do I save my resume as a PDF?
Hit PDF download in the preview step and the print dialog opens. Choose ‘Save as PDF’ as the destination and it saves exactly as the A4 template looks.
Does a real person edit my resume or run the interview?
No. Preterview is AI software you use yourself. Polishing your resume, scoring your portfolio, and the mock interview's questions and evaluation are all performed automatically by AI — we do not sell human-delivered consulting, resume-writing, or interview services.
