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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Wave logo
Wave
Hard
Software Engineer Locked

Construct a circular gift exchange across families

This question evaluates ability to model constrained permutations and apply graph-theoretic and combinatorial reasoning to produce a single circular o...

Coding & Algorithms
4
0
41 people solved
Jan 6, 2026
Lyft logo
Lyft
Medium
Product Manager

Plan Lyft's Entry into Delivery Using Its Existing Rideshare Drivers

You are a product manager at Lyft and have been asked to design a delivery offering for the company. Decide what Lyft should deliver and for whom, ide...

Product Design & StrategyProduct StrategyMetrics & KPIs
0
0
6 people solved
Apr 16, 2025
Intuit logo
Intuit
Medium
Data Scientist

Compute paid subscriber YoY counts by month

Write a single SQL query (PostgreSQL) that returns calendar-month counts of new paid subscribers starting from 2019-06-01 (inclusive) through the late...

Data Manipulation (SQL/Python)
4
0
54 people solved
Oct 13, 2025
Instacart logo
Instacart
Medium
Product Manager

Instacart Product Case: A Plan to Raise Retention on the Grocery Marketplace

Imagine you are a product manager at Instacart and you have been asked to raise retention. What would you do? `hint Find where people leave Before pro...

Product Design & StrategyGrowth & MonetizationSegmentation & Cohort Analysis
0
0
7 people solved
Mar 29, 2024
Airtable logo
Airtable
Easy
Data Scientist

Answer ambiguity and PM disagreement behavioral questions

Behavioral questions 1) Describe a time you worked on a problem with high ambiguity (unclear goals, incomplete data, shifting requirements). What did ...

Behavioral & Leadership
6
0
70 people solved
Oct 14, 2025
Google logo
Google
Medium
Product Manager

Google Hangouts product improvement: goal, target users, prioritized fixes and metrics

You are a product manager on Google Hangouts, the Google service for chatting, voice calls and video calls, one-to-one or in groups. How would you mak...

Product Design & StrategyProduct Design & Improvement
0
0
6 people solved
Apr 17, 2024
Lyft logo
Lyft
Medium
Product Manager

Lyft: Judging Whether Driver Supply Meets Delivery Demand by Zone and Hour

You are a product manager at Lyft. How would you tell whether there are enough drivers to handle the number of deliveries being requested in a particu...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
0
0
8 people solved
Mar 20, 2025
Meta logo
Meta
Medium
Product Manager

Launch-or-hold decision framework for a feature inherited as a new PM

You have just joined a team as its product manager. Your predecessor had been driving a feature, and whether it launches is now your call. What framew...

Product / Decision MakingLaunch EvaluationAmbiguity & Decision Making
0
0
6 people solved
May 20, 2024
Meta logo
Meta
Medium
Product Manager

Product improvement case: making WhatsApp's in-app search more useful

You are a product manager asked how you would improve search in WhatsApp. No other context is given, so you set your own assumptions. Explain what the...

Product Design & StrategyProduct Design & Improvement
0
0
8 people solved
Dec 30, 2023
Luma AI logo
Luma AI
Hard
Software Engineer Locked

Manage Prompt and Model Behavior in Production

Design production controls for prompts, models, retrieval policy, tools, and decoding settings in an AI application. Use immutable configuration versi...

ML System Design
1
0
22 people solved
May 25, 2026
Meta logo
Meta
Medium
Software Engineer Locked

Design a game leaderboard service

This question evaluates a candidate's ability to design scalable, low-latency ranking services, testing competencies in distributed systems, data mode...

System DesignMultiplayer Game SystemsStorage & Sharding
2
0
38 people solved
Oct 12, 2025
Instinctools logo
Instinctools
Medium
Product Manager

Opening PM Interview Pitch: Structuring a Concise Walkthrough of Your Career

The interviewer opens a product manager interview by asking about your background. Walk them through your professional experience so far. `hint Pick t...

Behavioral & LeadershipMotivation & Fit
0
0
6 people solved
Jan 26, 2025
Uber logo
Uber
Medium
Software Engineer

Develop test plan and TDD for word search

Design a Comprehensive Test Plan and TDD Workflow for Word-Search Functions Context and Assumptions We are testing two grid-based word search function...

Software Engineering Fundamentals
7
0
74 people solved
Sep 6, 2025
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Design a configurable monthly API rate limiter

This question evaluates system-design and distributed-systems skills, focusing on scalable API rate limiting, per-user monthly quota configuration and...

System DesignRate Limiting
56
0
475 people solved
Feb 12, 2026
Robinhood logo
Robinhood
Medium
Product Manager

Prioritizing Platform and Tech-Debt Work Against the Feature Roadmap

As a product manager, how do you decide how much effort goes to foundational engineering work versus building new features? `hint Put both on one scal...

Product / Decision MakingPrioritization & TradeoffsTechnical Tradeoffs for PMs
0
0
7 people solved
Jun 4, 2024
Uber logo
Uber
Medium
Product Manager

Ranking Candidate Cities for an Uber Eats Expansion: Criteria, Scoring and Pilot Plan

Uber has decided to bring Uber Eats, its food-delivery service, to a few cities where it is not yet available. As the product manager, how would you d...

Product Design & StrategyProduct StrategyGrowth & Monetization
0
0
4 people solved
Nov 26, 2024
Google logo
Google
Medium
Product Manager

Product Design: E-commerce Bike Shopping Experience for Girls Aged 12

You are a product manager asked to design an online store for one target customer: a 12-year-old girl shopping for a bicycle. Explain who the store se...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Jan 15, 2025
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Design a job scheduler with SLA and logs

This question evaluates understanding of distributed job scheduling, SLA enforcement, observability, and fault-tolerant execution across worker fleets...

System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
27
0
180 people solved
Feb 11, 2026
Microsoft logo
Microsoft
Hard
Software EngineerSenior+ Locked

Choose lock granularity for concurrent storage

This question evaluates understanding of concurrency control and lock-granularity trade-offs in concurrent storage components, including coarse-graine...

Software Engineering FundamentalsConcurrency
7
0
89 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Data Scientist Locked

Compare first-score vs all-scores estimators

Compare two ways to estimate average survey score over a one-week window: the first in-window score per user and survey pair versus the average of all...

Statistics & Math
6
0
51 people solved
Oct 13, 2025
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