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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
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Return the Lexicographically Smallest Topological Order

Return the lexicographically smallest valid ordering of a directed dependency graph, or an empty result when a cycle exists. The problem tests determi...

Coding & AlgorithmsGraphsHeaps & Priority Queues
94
0
705 people solved
Aug 1, 2026
Netflix logo
Netflix
Medium
Software Engineer Locked

Design a Distributed Frequency-Capping Service

Design a frequency-capping service for an advertising platform. Connect requirements and APIs to data modeling, consistency, scaling, failure recovery...

System DesignAds SystemsRate Limiting
23
0
329 people solved
Aug 11, 2026
Amazon logo
AmazonMetaMicrosoft

Also asked at Microsoft, Google, Bloomberg, Goldman Sachs, Oracle, Motive, Apple, TikTok, PayPal, Zomato

Medium
Software Engineer

Search a Matrix with Ordered Rows and Columns

Search a Matrix with Ordered Rows and Columns Given a rectangular integer matrix and an integer target, return whether the matrix contains the target....

Coding & AlgorithmsGrids & Matrices
1
0
13 people solved
ByteDance logo
ByteDance
Hard
Software Engineer

Implement multi-head self-attention from scratch with projections and masking

Implement a multi-head self-attention layer, the attention block used in Transformer models, from scratch. The interview allowed about 25 minutes for ...

Machine LearningTransformers & AttentionML Coding
4
0
30 people solved
Oct 4, 2026
Zomato logo
Zomato
Medium
Product Manager

Selecting 500 of 1,000 U.S. Restaurants to Onboard Without Comparable Data

The year is 2014 and you are a product manager at Zomato. Your team is already three weeks behind schedule. You have a list of 1,000 restaurants locat...

Product / Decision MakingPrioritization & TradeoffsRequirements & Launch Execution
1
0
25 people solved
Oct 20, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Find the Earliest Anagram Window

Given a text and pattern, find the first substring whose characters match the pattern with exact multiplicity. The task assesses frequency accounting,...

Coding & Algorithms
13
0
153 people solved
Jun 29, 2026
Meta logo
Meta
Medium
Product Manager

North-star and guardrail metrics for generative AI across Meta's apps

Meta has added generative AI to many of its products: an assistant that people can chat with inside its apps, tools that create or edit images and vid...

Analytics & ExperimentationMetrics & KPIsAI Product Management
2
0
23 people solved
Sep 28, 2026
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Design a Windows App Notification System While Working With an AI Assistant

A system design exercise to design the Windows notification platform that lets many applications post, update and display notifications, completed wit...

System DesignSystem Design FundamentalsAI-Assisted Development
2
0
53 people solved
Sep 6, 2026
Ethos logo
Ethos
Medium
Software Engineer

Find Array Elements Uniquely Determined by Known Range Sums

An integer array A of length n is hidden from you; its positions are numbered 1 to n. You are given a list of ranges (L, R), and the sum A[L] + A[L+1]...

Coding & AlgorithmsGraphsArrays & Strings
10
0
70 people solved
Aug 21, 2026
Playstation logo
Playstation
Easy
Software Engineer

Most Complex Project, Ideal Work Environment, Job Values and Hobbies

A behavioral screen for a software engineer role asked four questions: the most complex thing you have worked on, the environment in which you thrive,...

Behavioral & LeadershipProject Deep DiveMotivation & Fit
1
0
12 people solved
Oct 2, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Partition a Target String by Source Substrings

This question evaluates understanding of string algorithms and optimal partitioning, specifically substring matching and minimizing the number of cont...

Coding & Algorithms
24
1
211 people solved
May 14, 2026
Uber logo
UberSnapchatGoogleAmazon

Also asked at Google, Amazon

Hard
Software Engineer

Wait as Long as Possible before Escaping a Spreading Fire

Problem You are given a rectangular grid in which 0 is grass, 1 is fire, and 2 is a wall. You start at the top-left grass cell and want to reach the b...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
3
0
23 people solved
Anthropic logo
Anthropic
Hard
Software EngineerSenior+

Review and Improve a Flawed Design Document

Review and Improve a Flawed Design Document You are given a design document for a system that has important omissions or unsafe assumptions. Review it...

System DesignSystem Design FundamentalsFault Tolerance & Failover
21
0
377 people solved
Apr 16, 2026
Intuit logo
Intuit
Medium
Machine Learning Engineer Locked

Longest Meeting-Free Business-Hours Block per Employee and Day

Find each employee’s longest meeting-free business-hours interval using clipped attendance, merged overlaps, complete day coverage, and SQL window log...

Data Manipulation (SQL/Python)SQLIntervals & Scheduling
7
0
77 people solved
Sep 6, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Longest Straight-Line Robot Walk in a Grid with Forbidden Rows and Columns

A robot in a very large grid picks one direction and walks straight without turning, and some whole rows and columns destroy it if entered. Given the ...

Coding & AlgorithmsArrays & Strings
6
0
76 people solved
Sep 17, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Simulate turn-based monster team battle

Design an object-oriented model and implement the core battle logic for a turn-based fight between two teams of monsters. The system should simulate t...

Coding & AlgorithmsLow-Level Design (OOP)Simulation & State Machines
225
1
1836 people solved
Oct 30, 2025
Powertown logo
Powertown
Medium
Software Engineer

Project Deep Dive: Design Decisions, 100x Scale, AI-Assisted Development and Reliability

In a technical round of a software engineer interview loop at an early-stage startup, you walk the interviewer through a technical project from your p...

Software Engineering FundamentalsProject Deep DiveAI-Assisted Development
0
0
4 people solved
Nov 2, 2026
Visa logo
Visa
Medium
Software EngineerNew Grad Locked

Shortest Prefix of a Digit String That Can Build Every Permutation of a Target

Given a digit string and a list of digit targets, return for each target the length of the shortest prefix whose characters could build every permutat...

Coding & AlgorithmsArrays & Strings
12
0
90 people solved
Sep 19, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Implement IPv4 iterators and CIDR expansion

Problem: IPv4 Iterators and CIDR Expansion You are implementing utilities to iterate over IPv4 addresses. An IPv4 address is in dotted-decimal form: A...

Coding & AlgorithmsBit ManipulationData Structure Design
231
1
1669 people solved
Nov 15, 2025
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Amazon, Bloomberg, Apple, Oracle, TikTok, Motive, LinkedIn, Salesforce, JPMorgan Chase, Goldman Sachs, Roku, Pornhub

Medium
Software Engineer

Validate Parentheses with Optional Wildcard Characters

Problem Return whether s can become a balanced parenthesis string by independently treating each * as (, ), or the empty string. Every closing parenth...

Coding & AlgorithmsGreedyStacks & Queues
1
0
16 people solved
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