Premium

Walk into your data interview having already solved the hard ones.

Most of our practice library is free. Premium adds the harder company questions and the advanced portfolio projects that make a hiring manager stop scrolling, so you prepare for the interview you'll actually face.

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  • 132 interview questions in SQL, Python and pandas
  • Instant grading and a worked solution for every free question
  • 11 Data Labs projects with their datasets
  • Discussions, and posting your project repos for others to see
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Premium

$12/ month

$36 billed every 3 months

Save 20% · Best for a job search

  • Everything in Free
  • 15 harder interview questions, labeled by company: Meta, Netflix, Airbnb and more
  • Datasets for 3 advanced portfolio projects: fraud detection, RAG and data modeling
  • AI grading for your projects when it launches, at no extra cost
  • Every new Premium question and lab as it is added

14-day money-back guarantee

Renews automatically. Cancel anytime from your account menu.

Why learners go Premium

The questions that decide the offer

Screening rounds test the basics. Final rounds push on window functions, running totals, reshaping and the edge cases that trip people up. Premium is where you practice those, each with instant grading and a worked solution.

Projects hiring managers remember

Anyone can clean a sales spreadsheet. A fraud model tuned for rare events, a RAG assistant that cites its sources, or a star schema with price history shows you can do the job. Premium unlocks the datasets for exactly these.

Priced for a job search

Most people prepare for a few months, not forever. The quarterly plan covers a typical search for $36, and the 14-day money-back guarantee means trying it is risk-free.

Everything you unlock today

Marked with a Premium badge across the site, and growing as new questions and labs are added.

Questions about Premium

What stays free?
Most of the library: 132 of 147 interview questions, each with instant grading, a worked solution and a discussion, and 11 of 14 Data Labs projects with their datasets. Every lab's brief is free to read, including Premium labs. AI grading of lab projects, once it launches, is part of Premium.
How does billing work?
Premium is $15 a month, $36 every 3 months or $120 a year in US dollars, billed in advance and renewed automatically until you cancel. In some countries, including India, you pay a local price in your own currency, shown on this page and at checkout. Any sales tax or VAT for your country is added at checkout.
How do I cancel?
Open the account menu and choose Manage subscription, then cancel. You keep Premium until the end of the period you have paid for, and you are not charged again.
What if it isn't for me?
Then you get your money back. Ask within 14 days of your first payment for a full refund, no reason needed.
Who handles payments?
Paddle, our online reseller and merchant of record. Paddle processes your payment, handles tax and sends your receipts. We never see your card details.
Is this the career accelerator program?
No. Premium is self-serve practice on this site. The accelerator program is separate, with its own application and fees.

See our Terms of Service, Refund Policy and Privacy Policy. Questions? Email amlanmohanty.info@gmail.com.

Your next interview won't ask the easy questions.

Practice the ones it will, and build the projects that get you there. Try Premium with a 14-day money-back guarantee.