Machine Learning Engineer + Data Scientist + Software Engineer Interview Questions
Practice the exact questions companies are asking right now.
"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"
"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"
"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."
"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."
"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."
"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."
"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."
Evaluate New Ad Model with A/B Testing Experiment
Evaluate New Ad Model with A/B Testing Experiment Evaluate a New Ads Recommendation Model via Online Experimentation Scenario You have trained a new a...
Analyze Comment Distribution Using Statistical Metrics and Tests
Analyze Comment Distribution Using Statistical Metrics and Tests Assessing Concentration of Comments Across Posts Scenario You are analyzing comments ...
Describe Your Machine Learning Project Experience
Describe Your Machine Learning Project Experience Machine Learning Experience: Walk Through a Project Context You are interviewing for a Data Scientis...
Calculate Expected Flips for Heads-Tails Sequence
Calculate Expected Flips for Heads-Tails Sequence Probability Check — Waiting Time for HT Setup - You repeatedly flip a fair coin (independent flips; ...
Explain Motivations and Cross-Functional Collaboration in Business Intelligence
Explain Motivations and Cross-Functional Collaboration in Business Intelligence Behavioral Interview Prompt: Motivation, Trajectory, and Communication...
Evaluate Widget Impact on User Engagement with A/B Testing
Evaluate Widget Impact on User Engagement with A/B Testing A/B Test Design: New In‑App Recommendation Widget Scenario A company is preparing to roll o...
List Top Customers and Monthly Order Counts in SQL
Orders | order_id | customer_id | order_date | amount | |----------|-------------|------------|--------| | 1 | 101 | 2023-01-05 | 120.5...
Describe Your Most Challenging Data Project Experience
Describe Your Most Challenging Data Project Experience Behavioral: Walk Through a Technically Challenging Project (Technical Phone Screen) Context You...
Determine Metrics for Evaluating Homepage Recommendation Carousel
Determine Metrics for Evaluating Homepage Recommendation Carousel Experiment Evaluation: Homepage Recommendation Carousel Scenario A product team has ...
Identify Algorithms for Detecting Malicious Duplicated Content
Identify Algorithms for Detecting Malicious Duplicated Content Detecting Malicious Duplicated Text (DOT) Scenario You are selecting technical approach...
Design a Churn Model: Handle Missing Data and Justify
Design a Churn Model: Handle Missing Data and Justify Churn Prediction on Messy Subscription Data Context You are building a binary churn-prediction m...
Assess Cultural Fit and Soft Skills in Interviews
Assess Cultural Fit and Soft Skills in Interviews Behavioral Interview: Culture and Leadership Fit (Data Scientist Onsite) Prompt You are interviewing...
Determine Value of Prioritizing Accounts by Unread Notifications
Determine Value of Prioritizing Accounts by Unread Notifications Feature Validation: Ordering Multiple Accounts by Unread Notifications Context Users ...
Explain Propensity Score Matching and Assess Covariate Balance
Explain Propensity Score Matching and Assess Covariate Balance Propensity Score Matching (PSM) Context You have observational data with a binary treat...
Explain Overfitting and Underfitting in Machine Learning
Explain Overfitting and Underfitting in Machine Learning ML Fundamentals and Computer Vision: Core Concepts Instructions You are interviewing for a da...
Choose Between JOIN, BLEND, and RELATIONSHIP in Tableau
Choose Between JOIN, BLEND, and RELATIONSHIP in Tableau Tableau Data Modeling, Filters, and Visual Design Scenario You are preparing a Tableau dashboa...
Describe Your Analytical Experience and Cross-Functional Collaboration.
Describe Your Analytical Experience and Cross-Functional Collaboration. Behavioral Interview: Translating Analytics into Business Impact (Gusto Data A...
Diagnose Retail Revenue Drop and Predict Ad Impact
Diagnose Retail Revenue Drop and Predict Ad Impact Scenario You are a data scientist for a consumer fintech app preparing to run a Super Bowl TV ad an...
Calculate Probability of Heads in Coin Flip Experiment
Calculate Probability of Heads in Coin Flip Experiment Coin Flips: Counting and Binomial Probabilities Context Assume 10 independent flips of a fair c...
Analyze View Distribution and Recommendation Overlap in Videos
Analyze View Distribution and Recommendation Overlap in Videos Short-Video Platform: View Distribution and Recommendation Overlap Context You are anal...