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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026

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>Build a 30-day plan from PracHub's Meta SWE questions.

Two weeks of coding, then system design, then mock rounds. Start day 1?

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

PLTCHK testimonial
PLTCHK

"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"

_The_TaNk_ testimonial
_The_TaNk_

"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"

Chris testimonial
ChrisSenior SWE, LinkedIn

"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."

sleepy33 testimonial
sleepy33

"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."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"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."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"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."

Shruti testimonial
ShrutiData Engineer, Salesforce

"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."

midnightramen testimonial
midnightramen

"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."

Bianca testimonial
BiancaFrontend Eng, Figma

"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."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"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."

Showing 20 results
TikTok logo
TikTok
Medium
Data Scientist

Compute and rank top bad advertisers

SQL on ad safety. Assume the following schema and sample rows. Use ANSI SQL. Today is 2025-09-01; interpret “last 7 days” as 2025-08-26 00:00:00 to 20...

Data Manipulation (SQL/Python)
3
0
16 people solved
Oct 13, 2025
Shopify logo
Shopify
Medium
Data Scientist Locked

Optimize attempts in a timed logic test

This question evaluates a candidate's understanding of expected value, time-constrained optimization, efficiency metrics (score per second), and discr...

Statistics & Math
6
0
75 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Calculate posts per DAU by country today

Given two tables: - user_activity(user_id INT, activity_date DATE, country STRING, dau_flag TINYINT CHECK(dau_flag IN (0,1))) - composer(user_id INT, ...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
5
0
46 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Decide whether to renew or sell a TV series

This question evaluates a data scientist's skills in financial valuation (NPV and LTV), causal inference and experimental design, sensitivity analysis...

Analytics & Experimentation
5
0
37 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Build dashboard; diagnose engagement–purchase gap

Build a Comprehensive Dashboard for the Shopping Tab (Organic Only) Context Assume the Shopping tab is an in-app surface for organic product discovery...

Analytics & Experimentation
4
0
38 people solved
Oct 13, 2025
CVS Health logo
CVS Health
Medium
Data Scientist

Test payment-accuracy lift with p-value and power

AB Test of Payment Accuracy (Two Proportions) Assume transactions in the two periods are independent and large enough for normal approximations. Defin...

Statistics & Math
5
0
63 people solved
Oct 13, 2025
Netflix logo
Netflix
Medium
Data Scientist

Demonstrate JD skills with quantified outcomes

Data Scientist HR Screen: Map a JD Skill to Your Resume Project Pick one skill explicitly highlighted in the job description and one project from your...

Behavioral & LeadershipProject Deep Dive
10
0
78 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Hard
Data Scientist Locked

Design analysis to reduce cold-delivery complaints

This question evaluates a data scientist's end-to-end analytics and experimentation competencies, including precise metric definition, causal diagnost...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
9
0
76 people solved
Oct 13, 2025
Snowflake logo
Snowflake
Hard
Data Scientist

Present an end-to-end project and defend decisions

End-to-End Project Presentation + Deep-Dive Follow-ups Instructions (10 minutes, max 5 slides) Present an end-to-end project you led that shipped to r...

Behavioral & LeadershipProject Deep DiveMetrics & KPIs
7
0
83 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Data Scientist Locked

Prove conversion ads value via incrementality

This question evaluates a candidate's competency in causal inference and experimentation design for advertising measurement, covering metrics and attr...

Analytics & Experimentation
2
0
55 people solved
Oct 13, 2025
Amazon logo
Amazon
Hard
Data Scientist

Design an operations dashboard with justifications

Design an Operations Dashboard for Same-Day Delivery Station Performance Goal Create a real-time dashboard for a delivery-station manager to monitor a...

Analytics & Experimentation
7
0
53 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Hard
Data Scientist Locked

Decide and test a 20% discount strategy

This question evaluates a data scientist's competency in incremental profit modeling, causal inference and experimentation design, heterogeneous treat...

Analytics & ExperimentationExperiment Design (A/B Testing)Business Case Analysis
14
0
214 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Hard
Data Scientist Locked

Evaluate and test a Top Dasher program

This question evaluates skills in causal inference, experiment design under interference, decision framework development, anti-gaming and selection-bi...

Analytics & ExperimentationExperiment Design (A/B Testing)
19
0
136 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Data Scientist

Design and evaluate a dasher bike rollout

Program Evaluation: Allow Car Dashers to Also Use Their Own Bikes/E-bikes Context DoorDash (DD) will relaunch an opt-in feature that lets existing car...

Analytics & Experimentation
3
0
52 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Design experiments and observational alternatives

This question evaluates causal inference, experimental design, metric definition and measurement, power analysis, segmentation, and observational stud...

Analytics & Experimentation
2
0
33 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Design a small-sample launch experiment in Europe

Launch Test Design: Early-Access EU Businesses Context You have an early-access pool of 1,200 EU businesses for a new chat subscription offering. Chat...

Analytics & Experimentation
4
0
33 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Compute profit and break-even for memberships

This question evaluates a candidate's competency in unit economics, algebraic modeling, and sensitivity analysis for loyalty‑program pricing and profi...

Statistics & Math
3
0
52 people solved
Oct 13, 2025
Disney logo
Disney
Hard
Data Scientist

Diagnose and decide on watch-time drop

Hulu iOS Homepage Ranking Model Rollout: Causal Read and Decision Within 48 Hours Context - On 2025-08-25, a new homepage ranking model was shipped to...

Analytics & Experimentation
6
0
49 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist Locked

Design profitability growth plan

This question evaluates a data scientist's skills in business analytics, experimentation design, and strategic framework development for profitability...

Analytics & Experimentation
3
0
43 people solved
Oct 13, 2025
Thumbtack logo
Thumbtack
Medium
Data Scientist

Write complex joins and window functions

You are given a simplified Thumbtack-like marketplace schema in PostgreSQL. Assume UTC timestamps and weeks start on Monday. Treat "today" as 2025-09-...

Data Manipulation (SQL/Python)
0
0
13 people solved
Oct 13, 2025
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