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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
Google logo
Google
Medium
Software Engineer Locked

Solve matrix groups and recipe inventory

This pair of problems evaluates block-wise grid processing and aggregation for minimum-value selection alongside dependency-resolution and resource-al...

Coding & AlgorithmsGrids & MatricesGraphs
34
1
293 people solved
Jan 22, 2026
Airbnb logo
Airbnb
Easy
Software Engineer Locked

Design an In-Memory Cloud Storage Service with Users, Backups, and Restore

Design an in-memory cloud storage service with globally named files, user quotas, largest-file queries, account merges, and per-user backup and restor...

Software Engineering Fundamentals
9
0
92 people solved
Aug 17, 2026
OpenAI logo
OpenAI
Medium
Product Manager

Walking Through a Past Project You Owned, From Problem to Measured Result

Walk me through one project from your experience: what problem it addressed, what your part in it was, and how it ended. `hint Pick for ownership Choo...

Behavioral & LeadershipProject Deep Dive
1
0
24 people solved
Apr 21, 2025
Google logo
Google
Medium
Software Engineer

How to host many domains on one IP?

You have a single Linux server with one public IPv4 address. A coffee shop, butcher shop, and auto repair shop each want their own website and their o...

System DesignNetworking
35
0
250 people solved
Feb 1, 2026
Deshaw logo
Deshaw
Medium
Software EngineerIntern Locked

Teach a New Technical Concept to an Undergraduate

Practice teaching an unfamiliar technical concept to an undergraduate with limited prior coursework. Choose an appropriate learning goal, move from in...

Behavioral & Leadership
7
0
79 people solved
Jul 1, 2026
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Design a Geolocation Search Service

Prepare for a Snowflake system design interview about design a geolocation search service. This question focuses on requirements, architecture, trade-...

System DesignSearch & Feed SystemsGeo & Delivery Systems
22
0
373 people solved
Jul 4, 2026
Amazon logo
Amazon
Medium
Frontend EngineerNew Grad Locked

Format a Forest of Nested Comments

Format an arbitrarily ordered forest of comments as deterministic preorder trees while preserving sibling order and drawing correct continuation and f...

Coding & Algorithms
6
0
58 people solved
Aug 22, 2026
Ola logo
Ola
Medium
Product Manager

Market-Sizing: Estimate Swiggy's Weekly Food-Delivery Order Volume in India

Estimate the number of orders that Swiggy, the Indian food-delivery app, receives in a typical week. Talk through how you build the estimate, state ev...

Product / Decision MakingEstimation & Market Sizing
1
0
12 people solved
Jan 24, 2026
DoorDash logo
DoorDash
Medium
Data Scientist

Identify Challenges and Solutions for Bike-Delivery Program

Identify Challenges and Solutions for a Bike-Delivery Program A food-delivery platform is considering a bike-based delivery option for couriers in sel...

Behavioral & LeadershipProduct StrategyBusiness Case Analysis
24
0
169 people solved
Jul 12, 2025
Coinbase logo
Coinbase
Medium
Product Manager

Past Experience Resolving Technical Debt That Was Slowing a Product Team

Describe a specific situation from your experience in which technical debt became a real problem for a product or team you worked with. Explain what t...

Behavioral & LeadershipOwnership & ExecutionPrioritization & Tradeoffs
1
0
9 people solved
Jan 19, 2026
Google logo
Google
Medium
Machine Learning Engineer

Answer conflict, failure, and proud project questions

Behavioral questions Answer the following behavioral prompts using real examples from your experience: 1. Conflict: Tell me about a time you had a con...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
9
0
134 people solved
Jan 22, 2026
Uber logo
Uber
Medium
Product Manager

Designing a Marketplace-Safe Experiment for a New Uber Driver Feature

Uber wants to test a new feature built for its drivers. As the product manager, how would you design an A/B test that gives a trustworthy read on the ...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
0
0
12 people solved
Aug 16, 2026
Google logo
Google
Medium
Data Scientist

Compute p-values, probabilities, and regularization choices

Answer all parts. A) Hand‑compute a two‑sided p‑value comparing two means using Welch’s t‑test. Sample A: n1=20, mean1=5.2, sd1=1.1. Sample B: n2=24, ...

Statistics & MathHypothesis TestingProbability
18
0
223 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Answer suffix maximum-frequency queries

This question evaluates algorithm design skills and array-processing competency for answering repeated queries efficiently, focusing on time and space...

Coding & AlgorithmsArrays & Strings
7
0
122 people solved
Feb 11, 2026
Perplexity logo
Perplexity
Medium
Product Manager

Product Sense: Pick a Product With Excellent User Experience and Explain Its Design

Pick a product whose user experience you think is excellent, and explain what makes its design work. `hint Anchor it in one user's moment Rather than ...

Product Design & StrategyProduct Sense
1
0
11 people solved
May 12, 2026
TikTok logo
TikTok
Medium
Data Scientist

Compute 7-day rolling complaint/order ratio in SQL

SQL only. Given the schema and sample data below, write a single Postgres query (no procedural code) to compute a 7-day rolling complaint-to-order rat...

Data Manipulation (SQL/Python)
5
0
41 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software EngineerSenior+

Customer Focus: Going Above and Beyond and Shipping a Customer-Driven Change

This entry collects the loop's customer-focused leadership-principle prompts. Answer each part with a different real story, and expect the interviewer...

Behavioral & LeadershipOwnership & Execution
1
0
11 people solved
Apr 6, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Design an extensible expense rule evaluator

This question evaluates system-design and API/interface skills for rule engines, focusing on data modeling, extensibility, maintainability, and rule/r...

Software Engineering FundamentalsLow-Level Design (OOP)
41
0
499 people solved
Feb 12, 2026
Meta logo
Meta
Easy
Software Engineer

Score an Integer by Digit Frequencies

Score an Integer by Digit Frequencies You are given a positive integer n written in decimal. For each distinct digit d that appears in n, let freq(d) ...

Coding & AlgorithmsMath & Number Theory
0
0
7 people solved
Apple logo
Apple
Medium
Data Scientist

Clarify status, education, and multi-role strategy

HR Screen: Candidate Information and Minicase Readiness (Data Scientist) 1) U.S. Work Authorization Provide your current employment/visa status and wo...

Behavioral & Leadership
16
0
117 people solved
Oct 13, 2025
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