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Master your tech interviews with 18,000+ real questions from top companies.

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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
Atlassian logo
Atlassian
Medium
Data Scientist

Rank each team’s top 3 scores in 2024

Using the same schema, compute each team’s top 3 highest-scoring games for season_year = 2024, treating each game from BOTH teams’ perspectives (i.e.,...

Data Manipulation (SQL/Python)
4
0
42 people solved
Oct 13, 2025
Meta logo
Meta
Hard
Software Engineer

Design a basic bank system API

In-Memory Bank System: API, Data Model, Invariants, Semantics, and Edge Cases Goal Design and implement an in-memory bank system that supports account...

System Design
21
0
146 people solved
Sep 6, 2025
Interactive Brokers logo
Interactive Brokers
Medium
Data Engineer

Compute Minimum Production Days

Question You are given a list of product IDs products, where products[i] is the type of the product that must be produced at step i, and a non-negativ...

Coding & Algorithms
13
0
118 people solved
Jan 25, 2026
OpenAI logo
OpenAI
Easy
Software Engineer

Answer project deep dive and cross-functional questions

Behavioral / leadership round prompts You’re asked to cover some or all of the following: 1. Technical deep dive presentation - Prepare a short sli...

Behavioral & LeadershipProject Deep DiveMotivation & Fit
41
0
458 people solved
Jan 22, 2026
Affirm logo
Affirm
Easy
Software Engineer Locked

Design a Ticketmaster-like ticketing system

This question evaluates system design and distributed-systems competencies for an online event ticketing platform, focusing on scalability, concurrenc...

System DesignSystem Design FundamentalsPayments & Ledgers
22
0
159 people solved
Nov 6, 2025
Square logo
Square
Medium
Software EngineerSenior+ AI

Explain an AI-Assisted Engineering Workflow You Can Defend

Explain an AI-Assisted Engineering Workflow You Can Defend Choose a recent engineering project that you personally worked on. Use it to explain the fu...

Behavioral & LeadershipAI-Assisted DevelopmentProject Deep Dive
3
0
35 people solved
Apr 27, 2026
Microsoft logo
MicrosoftGoogleAmazonMeta

Also asked at Amazon, Meta

Easy
Software Engineer

Remove Zero Digits and Multiply by Their Sum

Problem Given a nonnegative integer n, form an integer x by removing every zero digit from its ordinary decimal representation, while keeping the othe...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
10 people solved
Meta logo
Meta
Medium
Product Manager

Paid verification for public figures on Twitter: charge or not, and the revenue model

Twitter marks the verified accounts of well-known people with a blue check mark. Should Twitter start charging these accounts for verification with th...

Product / Decision MakingGrowth & MonetizationTrust & Safety
1
0
14 people solved
Feb 8, 2026
Whatnot logo
Whatnot
Medium
Software Engineer

Propose and Validate a Mobile App Improvement

Assume you are working on a consumer mobile app. Propose one product improvement that could improve user engagement, retention, or conversion. Your an...

System DesignProduct SenseExperiment Design (A/B Testing)
13
0
129 people solved
Jan 24, 2026
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Solve Three Coding Interview Problems

This set of problems evaluates competency in algorithmic problem-solving, including merging sorted arrays with duplicate elimination, reasoning about ...

Coding & Algorithms
3
0
76 people solved
Feb 7, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a Tier-Aware AI Video Generation Service

Design an asynchronous AI video generation service around scarce, failure-prone compute rather than model internals. Cover durable job states, idempot...

System Design
11
0
96 people solved
Jul 1, 2026
OpenAI logo
OpenAI
Medium
Data Scientist

Analyze A/B Test Results for Subscription Conversion Rates

Analyze A/B Test Results for Subscription Conversion Rates An A/B test offers free users a limited-time trial of the paid plan to see whether it incre...

Analytics & ExperimentationExperiment Analysis & ReadoutHypothesis Testing
130
1
378 people solved
Jul 12, 2025
Coinbase logo
Coinbase
Medium
Backend EngineerSenior+ AI Locked

Evolve Cursor Pagination Without Breaking Clients

Debug bidirectional cursor pagination when many transactions share the same timestamp, then add amount sorting without breaking old clients. Define st...

Software Engineering FundamentalsAPI DesignIndexing & Query Performance
11
0
116 people solved
Jun 12, 2026
Amazon logo
Amazon
Easy
Data Scientist

Implement Batch Gradient Descent for Linear Regression

Batch Gradient Descent for Linear Regression You are building a linear regression model from scratch and will optimize the parameters using batch grad...

Machine LearningML CodingRegression & Statistical Modeling
24
0
150 people solved
Jul 12, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Solve common string and subarray problems

You are given three coding tasks: 1) Reverse a string - Input: a string s. - Output: the string with characters in reverse order. 2) Maximum sum of a ...

Coding & AlgorithmsArrays & StringsDynamic Programming
32
0
228 people solved
Jan 9, 2026
TCS logo
TCSGoogleMetaAmazon

Also asked at Meta, Amazon

Medium
Software Engineer

Maximum Total Subarray Range with Repeatable Choices

Problem Given an integer array nums and a positive integer k, select exactly k nonempty contiguous subarrays. Selections may overlap. The same endpoin...

Coding & AlgorithmsArrays & StringsGreedy
0
0
9 people solved
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Enumerate Right-and-Down Paths Through a Binary Matrix

Enumerate every valid top-left-to-bottom-right path through a small binary matrix using only right and down moves. Return move strings in lexicographi...

Coding & Algorithms
6
0
72 people solved
Aug 21, 2026
Google logo
Google
Medium
Software Engineer Locked

Generate all subsets (handle duplicates)

This question evaluates understanding of power-set generation and handling of duplicate elements, measuring competency in combinatorics, enumeration t...

Coding & AlgorithmsBacktracking & Recursion
15
0
121 people solved
Jan 4, 2026
Walmart Labs logo
Walmart Labs
Easy
Software EngineerSenior+

Merge two sorted arrays in-place

You are given two integer arrays sorted in non-decreasing order, and two integers m and n: - nums1 has length m + n. The first m elements of nums1 con...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
13
0
128 people solved
Dec 9, 2025
Sigmacomputing logo
Sigmacomputing
Medium
Software Engineer Locked

Evaluate a Formula AST with Variables

Evaluate a Boolean formula AST that also resolves integer or Boolean variables from an immutable environment. Preserve short-circuit behavior so missi...

Coding & Algorithms
4
0
37 people solved
May 12, 2026
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