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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

Practice with Claude Code or Codex

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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
Capital One logo
Capital One
Medium
Data Scientist Locked

Identify and validate risky assumptions

This question evaluates experimental design, causal inference, and business-analytics competencies for a Data Scientist by testing the ability to iden...

Analytics & Experimentation
3
0
34 people solved
Oct 13, 2025
Hard
Data Scientist Locked

Decide launch with p=0.10 at alpha 0.05

This question evaluates a data scientist's competency in statistical inference and experiment decision-making, including frequentist hypothesis testin...

Statistics & Math
1
0
24 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Data Scientist Locked

Contrast LSTM and Transformer for long sequences

This question evaluates understanding of sequence-model architectures and system-level trade-offs for long-context autoregressive language models, cov...

Machine Learning
4
0
51 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Hard
Data Scientist Locked

Design and analyze email deliverability experiment

This question evaluates a data scientist's competency in experimental design, causal inference, sequential testing (frequentist and Bayesian), instrum...

Analytics & Experimentation
7
1
75 people solved
Oct 13, 2025
Tubi logo
Tubi
Hard
Data Scientist

Determine A/B test sample size drivers

A/B Test Sample Size With Variations and Overdispersed Metric Case You are planning a two‑arm A/B test on a binary conversion metric with: - Baseline ...

Analytics & Experimentation
3
0
47 people solved
Oct 13, 2025
TikTok logo
TikTok
Hard
Data Scientist

Use DiD for staggered treatment adoption

Staggered DiD for a Weekly RPU Rollout (50 Regions, 2025-06-01 to 2025-08-15) Context and assumptions: - You have panel data at the region-week level ...

Statistics & Math
3
0
58 people solved
Oct 13, 2025
Netflix logo
Netflix
Hard
Data Scientist

Demonstrate handling dismissive stakeholders with candor

Behavioral Prompt: Managing Adversarial Dynamics While Driving Outcomes Context You are interviewing onsite for a Data Scientist role. A senior interv...

Behavioral & LeadershipConflict & CollaborationCommunication & Stakeholders
10
0
121 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Medium
Data Scientist Locked

Diagnose rising cold-food complaints and choose metrics

This question evaluates a data scientist's diagnostic analytics skills, including hypothesis generation, causal inference, metric engineering, and A/B...

Analytics & ExperimentationMetric DiagnosticsExperiment Design (A/B Testing)
5
0
91 people solved
Sep 25, 2025
Gts logo
Gts
Medium
Data Scientist Locked

Analyze duplicating data in linear regression

This question evaluates understanding of linear regression theory and statistical inference, specifically how duplicating observations affects OLS coe...

Machine Learning
5
0
37 people solved
Sep 18, 2025
Morgan Stanley logo
Morgan Stanley
Medium
Data Scientist Locked

Answer basic probability and statistics questions

This question evaluates core probability and statistics competencies, including interpretation of Poisson rate parameters from PMF shapes, identificat...

Machine Learning
5
0
54 people solved
Aug 23, 2025
Meta logo
Meta
Hard
Data Scientist Locked

How would you measure shop-ads promotion success?

This question evaluates a data scientist's competency in metrics design, experimental evaluation, and causal inference for ads ranking systems, includ...

Analytics & Experimentation
1
0
31 people solved
Aug 10, 2025
Adobe logo
Adobe
Medium
Machine Learning Engineer

Discuss resume and behavioral scenarios

Discuss resume and behavioral scenarios Behavioral & Leadership: Resume Walkthrough and Situational Prompts (Machine Learning Engineer — Onsite) Conte...

Behavioral & LeadershipProject Deep DiveAmbiguity & Decision Making
6
0
79 people solved
Aug 9, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Describe challenges and give constructive feedback

Describe challenges and give constructive feedback Behavioral & Leadership: Multi‑part Prompt for a Software Engineer Context: In a technical screen f...

Behavioral & Leadership
6
0
59 people solved
Aug 7, 2025
Uber logo
Uber
Hard
Data Scientist

Evaluate New Model's Impact on Rider and Driver Experience

Evaluate New Model's Impact on Rider and Driver Experience Airport Pickups ETA Model: Evaluation and Experiment Design Context A new model predicts ri...

Analytics & ExperimentationExperiment Design (A/B Testing)Metrics & KPIs
12
0
88 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Design A/B Test to Evaluate New Video-Feed Feature

Design A/B Test to Evaluate New Video-Feed Feature Scenario A consumer social-media app is launching a short‑video feed (TikTok-style). A newly added ...

Analytics & Experimentation
3
0
33 people solved
Aug 4, 2025
Capital One logo
Capital One
Medium
Data Scientist

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...

Analytics & Experimentation
4
0
42 people solved
Aug 4, 2025
Attentive logo
Attentive
Medium
Data Scientist

Interpret Results and Address Multiple Testing Concerns

Interpret Results and Address Multiple Testing Concerns Experiment Interpretation with Multiple Testing Context - An A/B experiment is run independent...

Analytics & Experimentation
4
0
42 people solved
Aug 4, 2025
Attentive logo
Attentive
Medium
Data Scientist

Apply Multiple Testing Corrections for Valid Results Analysis

Apply Multiple Testing Corrections for Valid Results Analysis Interpreting 30 Parallel A/B Tests With Mixed Results Context - You ran 30 independent w...

Analytics & Experimentation
81
0
195 people solved
Aug 4, 2025
Chime logo
Chime
Hard
Data Scientist

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...

Analytics & Experimentation
76
0
177 people solved
Aug 4, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze Ad CTR and Convert Transactions to USD

AdsImpressions +-----------+---------+------------+--------+-----------+ | user_id | ad_id | impressions| clicks | event_dt | +-----------+------...

Data Manipulation (SQL/Python)
127
0
508 people solved
Aug 4, 2025
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