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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
Amazon logo
Amazon
Medium
Data Scientist

Handle scope creep and teammate conflict

Behavioral & Leadership Two-Part Prompt (Data Scientist — Technical Screen) You will answer two behavioral prompts relevant to a data scientist role. ...

Behavioral & LeadershipOwnership & ExecutionConflict & Collaboration
11
0
96 people solved
Oct 13, 2025
Hard
Data Scientist

Demonstrate behavioral problem-solving with STAR

Data Scientist Onsite — Behavioral & Leadership (Use STAR) Answer concisely using the STAR framework (Situation, Task, Action, Result). Prepare brief,...

Behavioral & LeadershipCommunication & StakeholdersFailure & Learning
5
0
90 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer

Find Kth Smallest in BST

You are given the root of a binary search tree and an integer k. Return the value of the node that would appear in the kth position if all node values...

Coding & Algorithms
3
0
55 people solved
Feb 25, 2026
Meta logo
Meta
Hard
Data Scientist

Design an A/B test for WhatsApp call reliability

A/B Test Design: Adaptive Codec for Unstable Networks (WhatsApp Calling) Context You join the Calling organization. A PM proposes enabling an adaptive...

Analytics & Experimentation
5
0
59 people solved
Oct 13, 2025
Uber logo
Uber
Easy
Data Scientist Locked

How would you design an ETA prediction system?

This question evaluates a data scientist's capability to design an end-to-end ETA prediction system, testing competencies in machine learning modeling...

Machine LearningML System DesignGeo & Delivery Systems
10
0
111 people solved
Feb 6, 2026
Stripe logo
Stripe
Medium
Data Scientist

Write SQL to detect recurring non-subscription users

You have two tables: merchant and transaction. Assume 'today' is 2025-09-01. Schema: merchant(merchant_id INT PK, merchant_name TEXT, country TEXT, cr...

Data Manipulation (SQL/Python)
1
0
24 people solved
Oct 13, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Review a geospatial Python module

You receive a Python module that processes geospatial datasets (CSV/GeoJSON) to compute distances, cluster nearby points, and write summaries. Perform...

Data Manipulation (SQL/Python)Code Quality & Maintainability
6
0
117 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Maximize unique characters from a word list

This question evaluates algorithmic problem-solving skills focused on combinatorial subset selection and character-uniqueness constraints in strings, ...

Coding & AlgorithmsBacktracking & RecursionArrays & Strings
11
0
88 people solved
Feb 12, 2026
Uber logo
Uber
Medium
Data ScientistNew Grad

Describe Conflict and Impact

Prepare strong answers for the following behavioral and project deep-dive questions for a data scientist role: 1. Tell me about a time you went beyond...

Behavioral & LeadershipOwnership & ExecutionProject Deep Dive
11
0
76 people solved
Feb 27, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Compute and correct correlation significance inflation

This question evaluates statistical inference for correlations, multiple testing control (false discovery rate), power and sample-size calculations, a...

Statistics & Math
3
0
42 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Demonstrate cross-functional leadership with data and reflection

Cross-Functional Project Under a Hard Deadline (Data Scientist) Context: Share one concrete project where you partnered across at least three function...

Behavioral & Leadership
9
0
77 people solved
Oct 13, 2025
HBO logo
HBO
Hard
Data Scientist

Design an A/B for rare cancellations

A/B Test Design: Autoplay-Preview on the Home Page Context: A streaming service is testing an autoplay-preview feature on the home page. Weekly cancel...

Analytics & Experimentation
3
0
32 people solved
Oct 13, 2025
Roblox logo
Roblox
Medium
Machine Learning Engineer Locked

Design a game genre classifier

This question evaluates system design and machine learning competencies, including multi-modal modeling (text, images, tabular), data and label qualit...

ML System Design
17
0
145 people solved
Feb 27, 2026
LinkedIn logo
LinkedIn
Easy
Data Scientist Locked

Resolve Simpson’s paradox in email A/B test

This question evaluates understanding of Simpson's paradox, causal inference, experimental design, metric selection, and statistical inference within ...

Analytics & ExperimentationExperiment Analysis & ReadoutHypothesis Testing
13
0
115 people solved
Feb 16, 2026
Flipster logo
Flipster
Easy
Software Engineer

Design 64-bit distributed IDs and a parking lot

You have two system-design prompts. 1) 64-bit database ID generator Design a service/library that generates globally unique 64-bit integer IDs for dat...

System Design
6
0
40 people solved
Feb 12, 2026
Meta logo
Meta
Hard
Product Manager

Google–Roomba Acquisition Strategy

Acquisition Strategy Case: Should Google Acquire iRobot and Roomba? Assume you are evaluating a hypothetical acquisition of iRobot, the maker of Roomb...

Product / Decision MakingProduct StrategyBusiness Case Analysis
11
0
88 people solved
Jul 4, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Design a high-level logging system

Design a high-level centralized logging system for a company. Assume many services (microservices, batch jobs) running across multiple hosts/container...

System DesignObservability
7
0
134 people solved
Feb 9, 2026
Visa logo
Visa
Medium
Product Manager

How do you build a roadmap?

You are interviewing for a Product Manager role at Visa. The interviewer asks: How do you create and manage a product roadmap? Describe the inputs you...

Product / Decision Making
4
0
41 people solved
Oct 15, 2024
Point72 logo
Point72
Medium
Quantitative Researcher

Derive Annualized Portfolio Volatility

Derive Annualized Portfolio Volatility A stock portfolio has weight vector w. Each stock has factor exposures, the factors have a covariance matrix, a...

Statistics & Math
1
0
14 people solved
Jun 7, 2025
Meta logo
Meta
Medium
Product Analyst

Analyze DoorDash marketplace product decisions

You are a product-focused data scientist at DoorDash. Discuss how you would approach the following three product analytics and experimentation problem...

Analytics & Experimentation
4
0
50 people solved
Feb 19, 2026
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