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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.

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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
Hard
Data Scientist

Measure fake-news interventions under network interference

Experiment Design Under Interference: Warning Label for Suspected Fake-News Reshares Context You are testing a pre-reshare warning label for links sus...

Analytics & Experimentation
6
0
55 people solved
Oct 13, 2025
Nexon logo
Nexon
Medium
Product Manager

Handle Partner Pushback

In a game Product Manager interview, how would you handle pushback from cross-functional partners such as game designers, engineers, analytics, publis...

Behavioral & Leadership
4
0
46 people solved
Jan 5, 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
54 people solved
Oct 13, 2025
Uber logo
Uber
Hard
Data Scientist

Define market-only rider experience metrics

Market-only Rider Experience Metrics and Market Balance Index (MBI) You are designing a metric suite for a rides marketplace where "rider experience" ...

Analytics & ExperimentationMetrics & KPIs
12
0
87 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design a basic task management system

Design a Simple Task Management Service Requirements Design a simple task management system that supports: 1. Add a new task with a unique ID and desc...

System Design
10
0
67 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Data ScientistSenior+

Process real-time enter/exit events and actives

You receive a real-time stream of events with schema: user_id (str), channel (str), event_type ("enter"|"exit"), ts (UTC ISO timestamp). A user can ‘e...

Data Manipulation (SQL/Python)Batch & Stream ProcessingReal-Time Systems
5
0
91 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
50 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Design a real-time ad impression aggregator

Design an ads impression aggregator service with the following requirements: - The system ingests a high-volume stream of impression events (each even...

System Design
4
0
36 people solved
Oct 2, 2025
Capital One logo
Capital One
Medium
Data Scientist

Demonstrate ownership and navigate challenges

Behavioral deep dive: 1) Describe the most impactful modeling project you led end‑to‑end—your role, the concrete business metric moved, and one hard t...

Behavioral & Leadership
3
0
40 people solved
Oct 13, 2025
Capital One logo
Capital One
Hard
Data Scientist

Design and analyze ad A/B test

A/B Test Analysis Plan: New Ad-Ranking Algorithm (B) vs. Production (A) Context: You are evaluating a new ad-ranking algorithm (B) against the current...

Analytics & ExperimentationExperiment Analysis & ReadoutHypothesis Testing
5
0
85 people solved
Oct 13, 2025
Coinbase logo
Coinbase
Medium
Data Scientist Locked

Optimize no-penalty test strategy

This question evaluates proficiency in probability, expected-value calculations, stochastic decision-making, and constrained optimization applied to t...

Statistics & Math
8
0
59 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Analyze daily comments distribution and sampling

Daily Comments per Active User: Sampling and Inference You have, for a given day d, the count of comments made by each active user. Let there be m act...

Statistics & Math
8
0
57 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
59 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Write SQL filtering, grouping, CASE, UNION tasks

Use the following schema and sample data to answer all parts. Assume standard ANSI SQL and that amounts are DECIMAL. Table: orders +----------+-------...

Data Manipulation (SQL/Python)
0
0
8 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Data Scientist

Diagnose sudden KPI drop with segmentation

Production Incident: 10% Drop in Daily Likes (DAU Flat) on 2025-09-01 You are investigating a 10% day-over-day drop in daily Like actions on a global ...

Analytics & Experimentation
5
0
47 people solved
Oct 13, 2025
OneMain Financial logo
OneMain Financial
Medium
Data Scientist Locked

Maximize credit card portfolio profit

This question evaluates competence in credit-risk quantification, portfolio profitability analysis, approval decisioning and experiment design for a D...

Analytics & ExperimentationBusiness Case AnalysisProbability
10
0
106 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Test two models' proportions for significance

Two search models, A and B, were each used once by 100 distinct users (one query per user). Success is defined per query by your composite metric (suc...

Statistics & Math
6
0
55 people solved
Oct 13, 2025
Capital One logo
Capital One
Easy
Data Scientist Locked

Calculate Year-1 profit margin

This question evaluates a candidate's ability to perform applied financial math, including profit margin calculation, classification of costs into fix...

Statistics & Math
5
0
47 people solved
Oct 13, 2025
Meta logo
Meta
Easy
Data Scientist Locked

Determine if users need a new feature

This question evaluates a data scientist's competency in product analytics, causal inference, experiment design, metric definition, instrumentation, a...

Analytics & Experimentation
2
0
34 people solved
Oct 11, 2025
Google logo
Google
Medium
Software Engineer

Answer product, collaboration, and prioritization scenarios

Behavioral / Leadership prompts Answer the following (you can assume a 35–40 minute behavioral interview): 1. Intro (5 minutes): Walk through your bac...

Behavioral & Leadership
4
0
54 people solved
Oct 14, 2025
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