Practice anything. Test the limits of your knowledge. Personalized career coach.Live interview practice for any role, in any field

Most realistic interview experience

InterviewerSenior ML Engineer track
LIVE
Question 3 of 5 · System design
“Walk me through how you'd serve a recommendation model to 10M daily users. Where would latency hurt you first?”
You

“I'd start with a feature store and cache the embeddings, then batch the candidate generation so the ranking model only scores a few hundred items per request…”

Every profession

Just describe what you're learning, you can practice it

The interview

Human-like interview
experience

It adapts to what you say and gets harder the better you do, the way a good interviewer would.

Pick your interview

Start from the curated library, where every interview is designed by experts.

Senior ML EngineerL5
System DesignStaff
Data ScientistL4

A live conversation

Creates a realistic interview environment.

InterviewerListening…

Adaptive follow-ups

The questions get harder as you get stronger.

Practice at your own pace

Practice anytime, as many times as you need, until you're confident.

Tailored to your experience

Interviews are personalized based on your profile.

How it works

From your first question
to your final round

Pick your interview

Choose one from the library, or paste in the job description you're applying for.

Talk it through

It's a real conversation, and each question builds on your last answer.

Read your report

You get a report that quotes what you said and shows what to fix first.

Your interview

Aimed at the job in front of you

You decide what to practice for, whether that's a ready-made interview or the exact job you're applying for.

  • Interview for the exact opening

    Paste a job posting, or just the link to one, and the interview shapes itself around that exact role.

  • A library that runs deep

    The library is deepest in engineering, data, and AI today, and it keeps expanding into new fields like law and healthcare.

Search the libraryapp.openskill.ai/library
All rolesML & AIDataSystem DesignSecurity
L5

Senior ML Engineer

5 questions
L4

Data Scientist

6 questions
Staff

System Design

4 questions
L4

Security Engineer

5 questions
Over time

Track your progress

Every session is saved with its scores, so you can watch what's improving and catch the mistakes that keep coming back.

  • Replay yourself

    Come back in a month, replay an old answer in your own voice, and hear the difference.

  • Patterns, named

    See which skills are climbing and which mistakes keep returning, so you always know what to drill next.

Your progress · last 12 sessions
Average score
7.4 ↑ +1.6
Skill profile
Communication8.4
Technical7.1
Problem solving7.6
Depth6.4
Practice streak6 days
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F
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FAQ

Questions, answered

Anything else, write to us and a person will reply.

Write to us
What is openskill?

A place to practice interviews. An interviewer runs the session, adapts as you answer, and hands you a report built from what you said.

How realistic is it?

It runs like a real interview: an easy warm-up to start, a core that presses on your weak spots, then a few minutes for your own questions at the end. The interviewer stays in character and follows up whenever an answer feels thin.

Isn't this just ChatGPT?

You can ask a chatbot to interview you, and it will, politely. It drifts out of role, accepts whatever you offer, and congratulates you at the end. An openskill interviewer keeps the pressure on, and the report that follows scores every answer against what a strong one covers, quoting your own words as the evidence.

What can I practice for?

Any role you can describe. Paste a job posting from any field and interview for exactly that opening, or write the scenario yourself. The curated library goes deepest today in engineering, data, and AI roles, and it grows into new professions steadily.

What does it cost?

Your first full interview and report are free. After that, a monthly plan covers unlimited sessions.

Is my data private?

Yes. Your sessions, recordings, and reports are visible only to you, and we don't share them.

The blog

Interview advice and strategies

Practical advice on how interviews are run today and what separates a strong answer from a forgettable one.

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Jul 23, 2026
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Why AI won't wipe out white-collar work

The predictions of mass office-job loss haven't landed. The US has added roughly 3 million white-collar jobs since late 2022, and the more likely path is that AI widens what office roles cover rather than erasing them, even though young workers have taken a real hit along the way.

Jul 22, 2026
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Employers want you to supervise AI, not just use it

A growing expectation for new hires is that you can manage and quality-check AI output the way you'd oversee a junior employee. Being able to catch the machine's mistakes is becoming a hiring differentiator, and you can show it in an interview.

Jul 21, 2026
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How job seekers use AI, and where it backfires

Using AI to research companies, draft a cover letter, and practice your answers is smart and increasingly normal. Feeding yourself answers live during the interview tends to backfire, and faking your way in erodes the trust you'll need on day one.

Jul 20, 2026
Career Advice

How AI is used in hiring, and how to prepare for it

A machine may read your resume, book your interview, and score your answers before a person ever sees you. Roughly a quarter of organizations now use AI in recruiting, so the smart move is to prepare for each stage of the funnel rather than try to trick it.

Jul 19, 2026
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