Succeed in Interviews.Land Dream Data, AI & Quant Jobs.
Created by interviewers from top companies like Google and Meta for data engineers, data scientists, quants and ML/AI Engineers
Prep with a community of coaches and candidates
Trusted by candidates with
offers from top companies.
The data interview
isn't one interview.
SQL, statistics, ML theory, product sense, and behavioral โ all in the same loop, for the same role. Most candidates prepare for two of those. We built a platform that covers all of it, across every data role.
The most comprehensive question bank for data roles.
SQL, statistics, ML theory, product sense, and behavioral โ every category, every role, every major company. No other platform covers the breadth.
Browse questionsInterview Questions
Master 4,443 questions asked by top companies
Write and run Python in your browser.
100+ ML coding questions with a live Python executor. Implement algorithms, run against test cases, and study solutions from engineers at Google and Meta.
Try the coding engineStructured courses for every data role.
AB testing, statistics, ML theory, product sense โ each course built with video lessons, problem sets, and worked examples from real interviews.
Browse coursesExpert feedback, targeted to your gaps.
Personalized sessions with coaches who have run interviews at Google and Meta. Direct feedback, targeted drills, no fluff.
Never prep alone.
Slack community with 1,200+ active members โ find mock interview partners, share tips, and hold each other accountable.

Your next data interview
is closer than you think.
4,000+ questions, live classes, and expert coaching โ
everything you need to walk in prepared.













