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."
Prioritize Tasks and Respond to Coworker Concerns
Prioritize Tasks and Respond to Coworker Concerns Task Prioritization and Coworker Response Simulation (Data Scientist) Context You are a Data Scienti...
Describe Overcoming Ambiguity and Building Cross-Team Collaboration
Describe Overcoming Ambiguity and Building Cross-Team Collaboration Behavioral & Leadership Interview — Senior Data Scientist (IC5) Context You are in...
Explain Central Limit Theorem and Its Limitations
Explain Central Limit Theorem and Its Limitations Statistics Concepts and Disease-Test Evaluation Context You are assessing core statistical concepts ...
Understand P-Value's Role in Product Decision-Making
Understand P-Value's Role in Product Decision-Making Scenario You are a data scientist presenting A/B test results to non-technical executives who mus...
Identify Overlapping Sessions and Optimize Coverage
Identify Overlapping Sessions and Optimize Coverage Scenario During the technical screen, candidates must implement interval algorithms used in fraud-...
Investigate Causes of Increased Driver Wait Time
Investigate Causes of Increased Driver Wait Time Scenario DoorDash observed that driver (Dasher) wait time at restaurants spiked last week versus the ...
Diagnose Traffic Allocation in A/B Test Results
Diagnose Traffic Allocation in A/B Test Results Scenario A consumer app ran an A/B test that changed a call-to-action (CTA) button from green (control...
Improve Model Generalization with Cross-Validation and Feature Engineering
Improve Model Generalization with Cross-Validation and Feature Engineering Predict Next-Month Orders: Train/Test Split, Pipeline, and AUC Context You ...
Calculate Probability and Statistics for Dice Roll Outcomes
Calculate Probability and Statistics for Dice Roll Outcomes Dice Rolls and the Binomial Model Scenario A casino analyst models dice rolls to understan...
Design an Experiment to Evaluate New ML Model
Design an Experiment to Evaluate New ML Model Experiment Design: Validating a New Ads Ranking Model Context You operate an ads platform with an existi...
Navigate Behavioral Rounds with Hiring Manager Successfully
Navigate Behavioral Rounds with Hiring Manager Successfully Behavioral & Leadership Questions — Data Scientist Phone Screen Context You are in a behav...
Describe Your Most Impactful Project Experience and Lessons Learned
Describe Your Most Impactful Project Experience and Lessons Learned Behavioral Project Deep Dive (Technical Phone Screen — Data Scientist) Prompt Walk...
Investigate Declining ROI and Propose Effective Solutions
Investigate Declining ROI and Propose Effective Solutions E-commerce Ads Effectiveness and Diagnostics (Analytics & Experimentation) Context You are a...
Investigate Causes of Cold Food Deliveries and Solutions
Investigate Causes of Cold Food Deliveries and Solutions Diagnosing and Mitigating Cold Food Deliveries Context Customers report that delivered food o...
Measure Harmful Content Impact with Key Metrics
Measure Harmful Content Impact with Key Metrics Scenario A social-media platform needs to quantify how serious harmful or inappropriate user-generated...
Investigate Anomalies in Coinbase Wallet Engagement Metrics
Investigate Anomalies in Coinbase Wallet Engagement Metrics Coinbase Wallet: Anomaly Investigation Framing Context You observe an unexpected spike or ...
Describe Your Most Challenging Project and Its Outcome
Describe Your Most Challenging Project and Its Outcome Tell me about the most challenging project, situation, or thing you have worked on as a data sc...
Design and Analyze A/B Test for Recommendation Widget
Design and Analyze A/B Test for Recommendation Widget Scenario You are designing and analyzing an online A/B test for launching a new recommendation w...
Assess Leadership Through Disagreement, Failure, and Risk Examples
Assess Leadership Through Disagreement, Failure, and Risk Examples Behavioral Leadership Deep-Dive (Data Scientist Onsite) Scenario A leadership-princ...
Design A/B Test for New Amazon Recommendation Module
Design A/B Test for New Amazon Recommendation Module A/B Test Design: Home Page Recommendation Module Scenario Amazon plans to introduce a new product...