Voice-based interview training built around your CV and real technical scenarios - system design, live discussion, code review out loud. You get graded feedback after every session, not just a transcript.

Yes. 1 session per day and up to 4 active scenarios on the free plan. Paid removes both limits.

What stacks are supported?

Frontend (React, Vue, Angular), Backend (Node, Python, Java, Go), Fullstack. Scenarios are generated from your CV.

Can I create my own scenarios?

Yes. Use generated ones or create custom topics.

Why not just use an AI prompter during the interview?

A prompter isn't the risk, you are, the moment the follow-up goes off-script. It closes one call today and leaves the ability missing for the next one, the leveling talk, or a live discussion. Saynest trains the live-speaking skill itself, so there's nothing to hide and nothing that breaks under a follow-up.

Does this work for HR/behavioral rounds too?

Yes. The engine can generate HR scenarios as well, but the focus is technical and discussion-based interviews, where a cheat tool actually falls apart.

Will this help with my English too?

Yes, as a side effect. Every session tracks pace, filler words, and pauses regardless of topic, so speaking English under pressure improves alongside the interview prep itself.

Live conversation, real follow-ups

Walk into your next technical interview already tested

Practice out loud with an AI interviewer built from your CV, and get graded feedback on every answer.

Start for free See how it works

Interviewer

Walk me through a bug that took way longer to fix than you expected.

Tell me about a time you disagreed with a teammate's technical approach.

What's a project you shipped that you're not fully proud of?

How do you decide when to refactor versus just ship it?

Why did you pick that over the simpler option?

How would this hold up if traffic went up ten times?

What would you push back on in this design?

Walk me through a bug that took way longer to fix than you expected.

From CV to live session in minutes

Upload your CV or describe yourself - we generate scenarios. Or create your own.

Upload CV or describe yourself
Get scenarios from your stack - or create your own
Rehearse the real thing
AI asks topic by topic - answer like on a real call
Get your answers graded
Every topic scored, with the weak ones quoted back to you

Not what you know - whether you can say it out loud

The follow-up question is where a cheat breaks and a skill holds.

Cheating

Practicing

The follow-up

Cheating: Breaks - there's no script for it

Practicing: Holds - the skill answers, not a script

Code review

Cheating: Exposed in the room

Practicing: Nothing to hide

Next application

Cheating: Risky - one leak follows you

Practicing: Compounds - the ability is already yours

Feedback after every session

See exactly where you're strong, where you're weak, and how you sounded under pressure.

app.saynestlab.com/platform/history

Back to History Share Result

Good

System design: URL shortener

Summary Transcript

General Summary

12 Mar 2026 18m 24s Messages: 26 You: 13 AI: 13 Outcome: Completed

Topic coverage

86%

Strong answers

71%

Partner re-asks

1

Words per minute

142

Filler words

4%

Avg. pause

1.4s

Filler words detected

like×7
you know×4
basically×3
um×2

Session summary

You opened with requirements and traffic estimates before touching the design, which set the conversation up well. Trade-offs on the key generation strategy were concrete and you defended the counter question about collisions. Scaling was the weak part: the answer stayed at the level of "add a cache" without naming what gets cached, for how long, or what happens on a cache miss under a read spike.

Anchor breakdown

#1
Requirements & trade-offs
CoveredStrong
Closed on turn 3 · 2 turns on topic
"Before the design I'd pin down read-to-write ratio - roughly 100 to 1 - and whether links expire, because that decides the storage model."
#2
API & data model
CoveredStrong
Closed on turn 7 · 2 turns on topic
"Two endpoints: POST /links returning the short code, and GET /:code doing a 301. The table is code as primary key, long URL, owner, created_at, expires_at."
#3
Key generation & collisions
CoveredWeak
Closed on turn 12 · 3 turns on topic
3+ turns on this anchor - be specific from the first answer
"I'd hash the URL and take the first seven characters, then handle collisions on write."
- Needs clarificationTurn 11
  "Handle collisions on write."
  The partner asked twice how a collision is detected before you mentioned the uniqueness constraint.
  Minor
#4
Scaling & bottlenecks
CoveredWeak
Closed on turn 18 · 3 turns on topic
3+ turns on this anchor - be specific from the first answer
"At that scale I'd put a cache in front of the database and probably shard by code."
- Weak answerTurn 17
  "Probably shard by code."
  No hit ratio, eviction policy, or cache-miss path - the answer stayed at the level of naming the component.
  Moderate

Extra topics

Does not affect grade

#5 Optional
Analytics & click tracking
Not reached

Track your progress over time

Every attempt is saved - see what's improving and what's still stuck.

A library you can edit

Reword the generated scenarios, drop the ones you don't need, add topics of your own

Every attempt side by side

Run the same scenario again and see the old grade next to the new one

Shareable review

Share a session report with a coach or friend - they don't need an account

FAQ

Everything you need to know before you start.

Ready for your next interview?

Start free. Upload your CV and get your first scenarios in minutes.

Start for free See pricing