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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
Meta logo
Meta
Medium
Software Engineer Locked

Design an online chess game with undo and leaderboard

This question evaluates proficiency in real-time system design, state management, and concurrency control for multiplayer games, including consistency...

System Design
9
0
65 people solved
Nov 22, 2025
Old logo
Old
Hard
Data ScientistNew Grad

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 ...

Software Engineering Fundamentals
3
0
26 people solved
May 16, 2024
ByteDance logo
ByteDance
Medium
Product Manager

Describe your key projects and impact

For a TikTok platform Product Manager interview, prepare to introduce yourself and walk through past work in depth. The interviewer wants to assess ow...

Behavioral & Leadership
10
0
85 people solved
Oct 6, 2024
Nash AI logo
Nash AI
Medium
Software Engineer Locked

Implement Minesweeper click-to-reveal expansion

This question evaluates a candidate's ability to implement grid-based data structures, state management, and flood-fill style expansion logic for Mine...

Coding & Algorithms
2
0
47 people solved
Oct 21, 2025
Google logo
Google
Hard
Data Scientist Locked

Model Shot Success by Location

This question evaluates a candidate's skill in spatial probabilistic modeling, feature engineering, calibration, uncertainty quantification, and handl...

Machine Learning
4
0
83 people solved
Dec 3, 2025
Meta logo
Meta
Easy
Data Scientist Locked

Compute Bayes probability for fake accounts

This question evaluates Bayesian reasoning and probabilistic modeling skills, including conditional probability, base-rate effects, detector character...

Statistics & MathProbability
15
1
109 people solved
Nov 1, 2025
Bitkernel logo
Bitkernel
Medium
Software Engineer

Find minimum two’s-complement value with three ones

An 8-bit signed integer uses two's complement representation and has exactly three 1 bits and five 0 bits. What is the smallest (most negative) value ...

Software Engineering Fundamentals
3
0
37 people solved
Oct 24, 2025
Meta logo
Meta
Medium
Software Engineer

Explain key ML metrics and techniques

You are asked a set of short conceptual machine learning questions. 1. Confusion matrix and metrics For a binary classification problem: - Defin...

Machine Learning
8
0
76 people solved
Dec 8, 2025
LinkedIn logo
LinkedIn
Medium
Data Scientist

Frequent Traveler Case

You are a data scientist at a professional networking platform. Using coarse location signals such as city-level login location, IP geolocation, GPS, ...

Analytics & ExperimentationSegmentation & Cohort AnalysisFeature Engineering
11
0
87 people solved
Apr 30, 2025
Amazon logo
Amazon
Medium
Product Manager

Share Customer-Obsessed Leadership Stories

You are interviewing for an Amazon Logistics Product Manager role. In a first-round conversation with the hiring manager, you are asked several behavi...

Behavioral & LeadershipProduct SenseMotivation & Fit
11
0
97 people solved
Feb 12, 2024
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Build harmful-content text classifier

This question evaluates a candidate's competence in designing an end-to-end machine learning pipeline for binary text classification, covering data un...

Machine Learning
8
0
58 people solved
Nov 28, 2025
Capital One logo
Capital One
Medium
Data Scientist

Describe an accomplishment with quantified impact

Describe one professional accomplishment you are most proud of from the past two years. Make it audit-ready by covering: goal, measurable target, cons...

Behavioral & Leadership
4
0
36 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Data Scientist

Decide if subgroup increases imply overall increase

TikTok Time: Subgroup Increases vs Overall Average (Simpson's Paradox) You are analyzing average daily time spent on TikTok by gender (male, female) a...

Statistics & Math
6
0
47 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Design fundraising experiment and guardrails

You plan to A/B test two online solicitation variants for the nonprofit's email campaign (subject line + suggested amount). Assume baseline conversion...

Analytics & Experimentation
4
0
48 people solved
Oct 13, 2025
Meta logo
Meta
Easy
Data Scientist

Define engagement metrics and analyze comment distribution

You are a Data Scientist for a video platform. A PM asks you to: 1) Define metrics for “engagement” (they want a clear metric framework they can use i...

Analytics & ExperimentationMetrics & KPIs
12
0
98 people solved
Dec 6, 2025
TikTok logo
TikTok
Medium
Data Scientist

Write SQL for geo posting-frequency drops

Using the schema below, write a single ANSI SQL query (window functions allowed) that identifies countries with the largest share of creators whose po...

Data Manipulation (SQL/Python)SQLMetric Diagnostics
12
0
98 people solved
Oct 13, 2025
Thumbtack logo
Thumbtack
Hard
Data Scientist

Present a DS project with business impact

7-Minute Data Science Project Presentation (Onsite) Context You are interviewing for a Data Scientist role and will present a past project to a mixed ...

Behavioral & Leadership
3
0
56 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Diagnose drop and assess metric change impact

This question evaluates a data scientist's competency in diagnostic analytics, instrumentation validation, causal attribution, experimentation design,...

Analytics & Experimentation
1
0
27 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist Locked

Control error under multiple testing

This question evaluates a candidate's understanding of multiple hypothesis testing, sequential monitoring, and error-rate control—specifically familyw...

Statistics & Math
2
0
38 people solved
Oct 13, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Diagnose Decline in Successful Orders

You are a Data Scientist at a food-delivery marketplace. In one geographic market, the number of successful orders has declined over the past 4 weeks....

Analytics & ExperimentationMetric DiagnosticsMetrics & KPIs
7
0
114 people solved
Oct 21, 2025
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