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."
Design Ticket Booking Auto Release
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Explain and Implement Strings
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Show leadership and teamwork
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Choose container set to minimize waste
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Design time strategy for rapid-fire OA
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Maximize Profit From Cutting Rods
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Design a Balloon Festival Simulator
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Implement node messaging and path discovery
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Design an Accurate Click Aggregator
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Compare RDBMS and NoSQL trade-offs
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Explain HTTP methods and your usage
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Walk through your resume and projects
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Design real-time exchange data sync system
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Solve Exact Probability and Expected-Value Exercises
Solve Exact Probability and Expected-Value Exercises Work through the following short quantitative problems. Give exact simplified fractions when the ...
Implement a Flappy Bird Jump Agent
This question evaluates discrete-time physics simulation, real-time decision-making under constraints, collision detection, and deterministic control-...
Write SQL to compute max and min marks
Tables marks | column | type | notes | |---|---|---| | student_id | INT | primary key | | marks | INT | not null | Task Write a SQL query that returns...
Compute window averages and merge intervals
Compute window averages and merge intervals You are given two independent pandas tasks. 1. Centered sliding-window average - Input DataFrame df with c...
Design keyword search for social posts
Design a Facebook-like post search feature: - Input: one or more keywords. - Output: all (or top-K) posts that contain the keyword(s). - Assume posts ...
Find Kth Unique Maximum
This question evaluates algorithmic problem-solving skills related to sorted arrays, deduplication, and order-statistics across combined datasets, mea...
Diagnose conversion-rate time series and CTA swap
Part A — Diagnose a conversion/approval-rate time series You are given a monthly time series of credit card approval rate from Jan 2013 to Jan 2015. Y...