StrataScratch Provides The Building Blocks
For A Successful Career In Data Science

Join the 100,000+ data scientists seeking to improve their coding skills,
prepare for interviews, and jump-start their careers.


The Best Place To Master Coding
For Data Science


Interview Questions


Community Members


Companies Tracked

Who we are

Our Mission

Coding questions to jumpstart your career in data science

To Provide The Building Blocks For A Successful Career In Data Science

Tracking interviews from your favorite companies

Track real interview questions from your favorite companies with regular updates

Code in SQL & python

Code your solutions in SQL and python using our code-execution environment that lets you validate your solution

Real data science problems

We focus on teaching you how to solve real-world data science problems, not just proper coding syntax



"I received offers from Facebook, Bloomberg, and Zynga. Moreover, I had completed final round interviews with companies like Indeed, Lyft, and Salesforce. I practiced speaking out loud while solving coding questions using the method from the videos, and StrataScratch was just the perfect platform to practice and improve on real-world data query questions!"

Paul @ Facebook

"StrataScratch has been super helpful. I started with barely being able to finish an easy SQL query to no problem solving most of the medium level in just a few days."

Kyle @ Twitch

"Love the practice problems and solutions. They're so much to do on the platform that you'll get better over time. I felt so much more confident at work and at interviews because I had a lot of practice with StrataScratch."

Jenn @ Stripe

"StrataScratch and the community really helped me prep for the interview — I ended up getting the Data Scientist internship!",

Joe @ Microsoft

"I really wanted to get into data analytics and data science but never really understood the importance of SQL. I found out about StrataScratch and within a few days of using it I wanted to get a premium membership because the questions are really very realistic and I was asked similar questions in my coding and technical rounds. As a result, the platform really helped me gain confidence and helped me get comfortable with SQL queries. Would definitely recommend this to everyone."

Hemant R @ Credit Karma

"I just wanted to say that I think your platform is really great. I"ve been using it a lot lately, and I wish I found it sooner! I"ve used Leetcode but it"s not the same for the Data Science community. I am strong in SQL but have always struggled with Python, so your platform it"s really easy for me to apply my SQL logic to Python."

Anonymous Analyst @ Postmates
Other testimonials

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Coding questions to jumpstart your career in data science

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