NEW Interview practice for the AI era

Walk in genuinely
ready.Interview practice, built for the AI era.

Practice realistic sessions, test what you know, and strengthen your fundamentals with honest feedback — across machine learning, data, system design, AI product roles, and beyond.

Expert-built practice tracksRealistic AI mock interviewsHonest, instant feedbackKnow where you stand
AI Interviewer · SteveSenior 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…”

Live score
7.8
Feedback ready
in 4 seconds

Get ready for the roles you're aiming for

MetaGoogleMicrosoftamazonOpenAISpotifyTikTokStripe
Sharpen up in your field

Practice across the fields AI is reshaping

Features

Everything you need to
walk in ready

Lifelike practice, feedback that tells you the truth, and a library that keeps pace with the roles AI is reshaping.

Expert-Built Practice Tracks

Step into hundreds of complete, realistic sessions crafted by domain experts. Each one is tuned to a specific role and level, never a random pile of questions.

Senior ML EngineerL5
System DesignStaff
Data ScientistL4

Talk It Through With AI

Hold a genuine spoken conversation with an AI interviewer that listens, digs into what you skim over, and ramps up the challenge as you find your footing.

AI InterviewerListening…

Honest, Instant Feedback

Wrap up a session and get a clear, specific report in seconds. See what landed, where you slipped, and how to fix it.

Test What You Really Know

Pressure-test your knowledge the way a sharp interviewer would, and surface the gaps before they cost you an offer.

Track Every Bit of Progress

Watch your scores climb, see your strengths take shape, and keep an eye on the weak spots that need another pass.

Strengthen Your Fundamentals

Come back as often as you like to refresh your skills, drill the hard topics, and turn shaky areas into second nature.

How it works

From first run to offer,
all in one place

Pick a track

Choose a complete, expert-built session tuned to the exact role and level you're aiming for — from first rounds to senior and staff.

Talk it through

Hold a real spoken conversation with an AI interviewer that listens, asks sharp follow-ups, and adjusts the difficulty as you go.

Get your report

Wrap up and get an honest, specific breakdown in seconds — what landed, where you slipped, and the exact reps to run next.

Platform Benefits

A practice library built for how hiring works now

From your very first run to your offer, it all happens in one place.

  • Complete sessions, not question dumps

    Every track is a full, expert-built run-through tuned to a real role and level, from first rounds all the way to senior and staff.

  • Go deep in your field, ready for the AI era

    Whether you work in machine learning, data, system design, or AI product management, rehearse the exact scenarios your target role will throw at you.

Search 380+ tracksapp.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
Always improving

Always know where you stand

Track your scores, watch your skill profile grow, and spot the patterns that keep showing up — so your next move is always clear.

  • Shaped around you

    Bring your background and the role you want, and every session adapts, drawing on your experience and probing the skills that role truly demands.

  • More fields on the way

    We're starting with the roles AI is reshaping fastest, then expanding into law, healthcare, and beyond. Your library keeps growing.

Your progress · last 12 sessions
Average score
7.4 ↑ +1.6
Skill profile
Communication8.4
Technical7.1
Problem solving7.6
Depth6.4
Practice streak
Feedback that tells you the truth

The report you get,
seconds after you finish

Most tools just cheer you on. openskill evaluates you the way a real interviewer would — pinpointing the moments that cost you and showing what a strong answer sounds like.

OpenSkill
01 Feedback report02 Detailed analysis03 Progress & analytics
Light
Post-interview report

Senior Backend Engineer · Stripe

Senior Backend EngineerStripeJun 14, 202632 min5 questions
Download report
7.4OUT OF 10
Good
Solid performance, with clear gaps to close.
You showed strong engineering instincts and clarity of thought. Focus on quantifying impact and going deeper on tradeoffs.
Communication8.1
Technical knowledge6.8
Problem solving7.2

Competency profile

6 dimensions
Your score

Communication & delivery

7.7
Overall delivery
Clear and confident; trim filler to sharpen it.
Grammar accuracy
94% Strong
Filler words
6.2% Watch
Word repetition
4.1% Good

Answer quality across questions

View full breakdown →
What you did well
  • Clear, well-structured answers with strong narrative flow
  • Asked sharp clarifying questions before diving in
  • Named concrete tradeoffs instead of staying abstract
Top things to improve
  • Quantify impact — attach metrics to your project stories
  • Go deeper on systems tradeoffs and failure modes
  • Don't bail early — fully develop each answer
Priority action items
  • Re-tell two recent projects with metrics (impact, scale, outcomes)High
  • Practice system design tradeoffs & failure modesHigh
  • Run 5 mock interviews focused on depth & clarityMedium
FAQ

Frequently asked questions

Everything you need to know about openskill and how it gets you ready.

Still curious? Get in touch
What is openskill?

openskill is an AI-powered practice platform. You step into realistic sessions, hold a natural spoken conversation with an AI interviewer, and get honest, specific feedback in seconds, so you walk into the real thing genuinely ready.

How realistic are the sessions?

Each one is a complete, expert-built run-through for a specific role and level. Your AI interviewer listens to your answers, asks real follow-up questions, and adjusts the difficulty as you go. It feels like the real conversation, not a quiz.

Isn't this just ChatGPT?

General chatbots tend to tell you everything was great. openskill is built to coach, not flatter. It measures your answers against what a strong response actually looks like and gives you honest, useful feedback tied to specific moments in your session.

What can I practice for?

openskill focuses on the roles AI is reshaping fastest: machine learning and AI engineering, data, system design, security, DevOps, and AI product and program management. More fields like law and healthcare are on the way.

I always freeze up. Will this help?

That's exactly what repetition fixes. Freezing isn't a character flaw, it's your brain under pressure. The more realistic reps you get, the more automatic your answers become, so you stay sharp when it counts.

Is my data private?

We take your privacy seriously. Your sessions stay private to you, and you stay in control of your own data.

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Step in and find out
where you really stand.

Be first in line. Get early access to realistic AI practice and honest feedback across the roles AI is reshaping.

We are launching soon! Questions? Reach out to [email protected]