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."
Rank Ads by Conversion Rate for Top 10 Performers
ad id | advertiser_id | created_at 1 | 101 | 2023-07-01 2 | 102 | 2023-07-05 3 | 101 | 2023-07-10 impression id | a...
Calculate Weekly, Monthly Hours Watched by Premium Users
watch_events +-----------+----------+----------------+-----------------------+----------------+ | user_id | video_id | watched_minutes| watched_at ...
Determine Revenue and Cost Components for Credit-Card Issuer
Determine Revenue and Cost Components for Credit-Card Issuer Credit-Card Issuer Unit Economics and Break-even Analysis Scenario A card issuer is consi...
Understand Propensity Score Matching in Business Analytics
Understand Propensity Score Matching in Business Analytics Propensity Score Matching (PSM) in Observational Product Data Context You work on a growth ...
Calculate Monthly Revenue from Orders in 2023
orders | id | order_date | customer | |----|------------|----------| | 1 | 2023-01-03 | 101 | | 2 | 2023-02-14 | 102 | | 3 | 2023-02-20 | 101 | o...
Calculate Day-7 Retention Rate from User Post Data
post_activity +---------+------------+-------+ | user_id | post_date | posts | +---------+------------+-------+ | 1 | 2023-01-01 | 3 | | 1 ...
Resolve Conflicts in Data Science Leadership Scenarios
Resolve Conflicts in Data Science Leadership Scenarios Behavioral and Leadership Prompts (Onsite — Data Scientist) Use the STAR method (Situation, Tas...
Clean and Summarize User Purchase Data Efficiently
transactions +-----------+---------------------+-----------+--------+ | user_id | txn_timestamp | txn_value | txn_id | +-----------+----------...
Boost User Login Rate: Key Metrics to Monitor
Boost User Login Rate: Key Metrics to Monitor Scenario You are the product data scientist responsible for improving a consumer fintech platform's user...
Generate Bigrams Using Python List Comprehension and Zip
Scenario Live Python exercise: generate all bigrams from an input string and iteratively optimize the solution. Question Write a Python function that ...
Design Metrics to Measure Inappropriate Content Severity and Prevalence
Design Metrics to Measure Inappropriate Content Severity and Prevalence Harmful-Content Detection: Measurement Plan and Experiment Design Objective Yo...
Describe Solving Complex Project Challenges in Detail
Describe Solving Complex Project Challenges in Detail Behavioral: Ownership and Problem-Solving (Data Scientist Phone Screen) Prompt Describe the most...
Ensure Correct Numeric Ordering in Visit ID Comparison
visits +----------+---------+-----------+---------------------+ | visit_id | user_id | page | visit_ts | +----------+---------+-------...
Identify Key Metrics for Monitoring Shipment Defects
shipment +-------------+----------+------------+---------+---------+ | shipment_id | order_id | ship_date | carrier | status | +-------------+------...
Select 10% Users Randomly from User Table
users +----+----------+-------------+ | id | username | signup_date | +----+----------+-------------+ | 1 | alice | 2023-01-02 | | 2 | bob ...
Calculate Expected Draws for X > 0.8 in Uniform(0,1)
Calculate Expected Draws for X > 0.8 in Uniform(0,1) Scenario Quick probability check during a first-round screen to gauge statistical intuition. Ques...
Identify Pirate-Themed Custom Themes Using Jaccard Similarity
Scenario Engineering receives two lists and must identify custom themes that look like Pirate themes. Question a) Write a Python function that compute...
Analyze Pirate Theme Usage Growth Over Time
themes +----+--------------+-----------+ | id | name | is_pirate | +----+--------------+-----------+ | 1 | Pirate Red | true | | 2 | ...
Compute Customer Spend and Engineer Features for 2023
transactions +-----------+-------------+--------+------------+--------------+ | tran_id | customer_id | amount | tran_date | merchant_cat | +------...
Generate Daily Unique User Views for Each Shop
shop_views +---------+---------+---------------------+ | user_id | shop_id | view_time | +---------+---------+---------------------+ | 101 ...