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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
Amazon logo
AmazonBloomberg
Medium
Software Engineer

Decide the Winner of a Digit-Balance Game

Problem Alice and Bob alternately replace one ? in the even-length string num with any digit from 0 through 9. Alice moves first. When no question mar...

Coding & AlgorithmsMath & Number TheorySimulation & State Machines
1
0
10 people solved
Spotify logo
Spotify
Medium
Backend Engineer

Design a Public Upload and Hosting Service for Playlist Cover Images

Design the backend service that lets a user attach a custom cover image to a playlist and manage it afterwards: upload a new image, replace it, or rem...

System DesignFile & Media StorageCaching
1
0
17 people solved
Jul 7, 2026
Google logo
Google
Medium
Software Engineer Locked

Count Clusters of 2D Points Within a Radius

This question tests graph traversal skills, specifically identifying connected components among a set of 2D points using distance-based adjacency. It ...

Coding & Algorithms
11
3
100 people solved
Jun 18, 2026
Microsoft logo
Microsoft
Medium
Site Reliability EngineerSenior+

When to automate operations work, and good-enough versus excellent automation

In a senior reliability engineering loop, the interviewer asks how you think about automating the operation of a system so that engineers win back tim...

Software Engineering FundamentalsReliability & SRE
2
0
20 people solved
Jul 30, 2026
NVIDIA logo
NVIDIA
Easy
Software Engineer Locked

Compute the Final Robot Score

This question evaluates data structure and algorithm proficiency, focusing on managing dynamic multisets with priority-based selection and reasoning a...

Coding & AlgorithmsHeaps & Priority Queues
17
0
135 people solved
May 19, 2026
Waymo logo
Waymo
Medium
Product Manager

Roll Out Waymo's Simulation Tooling to a New City or Country

You are a product manager at Waymo. How would you roll out a simulation tool in a locale where it has not been used before? `hint List what the locale...

Product Design & StrategyRequirements & Launch Execution
1
0
13 people solved
Jun 18, 2026
Google logo
Google
Medium
Software EngineerNew Grad

Solve Two Array Optimization Problems

You are given two coding problems from the same interview round. Problem 1: Split a gold chain fairly An array weights represents the weights of conse...

Coding & AlgorithmsArrays & Strings
52
2
341 people solved
Apr 11, 2026
Glean logo
Glean
Medium
Machine Learning Engineer AI

Implement Rate-Limited Wikipedia Crawler

Implement a rate-limited Wikipedia crawler. You may use an AI coding assistant during the interview, such as Cursor or Claude Code. You are expected t...

Coding & AlgorithmsGraphsRate Limiting
9
0
107 people solved
Apr 23, 2026
Intercom logo
IntercomMicrosoft
Medium
Software Engineer

Count Named Records in Minute, Hour or Day Buckets

Problem Implement TweetCounts. recordTweet(tweetName,time) stores one occurrence at an integer second. getTweetCountsPerFrequency(freq,tweetName,start...

Coding & AlgorithmsData Structure DesignBinary Search
1
0
14 people solved
Snapchat logo
Snapchat
Medium
Software Engineer

Count Grid Islands That Never Touch the Border

You are given a rectangular grid in which 0 marks a land cell and 1 marks a water cell. An island is a maximal group of land cells connected horizonta...

Coding & AlgorithmsGrids & Matrices
4
0
45 people solved
Jul 1, 2026
New Relic logo
New Relic
Medium
Backend Engineer

Design a Kafka Consumer Service That Groups Trace Events by Trace ID

Design a distributed event-processing system that consumes trace events from Kafka and groups together all events that belong to the same trace, so th...

System DesignMessaging & Event-DrivenBatch & Stream Processing
1
0
23 people solved
Sep 23, 2026
Anthropic logo
Anthropic
Medium
Software EngineerSenior+ Locked

Discuss Ethical Judgment and Unwanted Work

This behavioral interview question evaluates self-awareness, ethical judgment, and the ability to influence peers without relying on authority — core ...

Behavioral & LeadershipEthics & ResponsibilityLeadership & Influence
87
0
610 people solved
Jun 14, 2026
Tradedesk logo
Tradedesk
Medium
Software Engineer Locked

Fetch and Cache Daily Stock Prices Across a Date Range

Implement a Python date-range client that fetches daily opening and closing prices from a documented HTTP service. The solution covers strict parsing,...

Software Engineering Fundamentals
3
0
23 people solved
Aug 31, 2026
TikTok logo
TikTok
Easy
Software EngineerIntern Locked

Investigate an iOS Memory Failure

Diagnose an iOS memory failure by separating pressure, retention, leaks, and invalid access, then use device reports and profiling to verify the repai...

Software Engineering FundamentalsMemory ManagementDebugging
5
0
67 people solved
Sep 5, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Design a batch inference API

Design an Asynchronous (POST-and-Poll) Inference Service API Design an asynchronous inference service for serving model predictions. A client submits ...

ML System DesignSystem Design FundamentalsAPI Design
91
0
1376 people solved
Sep 6, 2025
Netflix logo
Netflix
Medium
Software EngineerSenior+ Locked

Design Ad Frequency and Order Tracking

This question evaluates system-design competencies for building low-latency, high-throughput ad-platform components—specifically a real-time frequency...

System DesignAds SystemsRate Limiting
46
0
531 people solved
Apr 26, 2026
Airbnb logo
Airbnb
Hard
Software Engineer

Design an A/B Testing Platform

Design an A/B Testing Platform Design a platform that lets product teams define an experiment, assign eligible users consistently to control or treatm...

System DesignSystem Design FundamentalsExperiment Analysis & Readout
20
0
179 people solved
Apr 21, 2026
Lead Bank logo
Lead Bank
Medium
Software Engineer Locked

Solve friend recommendations and time-versioned maps

This question evaluates the candidate's ability to design and implement specialized data structures for graph-based friend recommendation logic and ti...

Coding & Algorithms
4
0
52 people solved
May 26, 2026
Capital One logo
Capital One
Medium
Software EngineerNew Grad

Answer motivation and teamwork questions

You are in a behavioral interview for an entry-level software role. Answer the following prompts: 1. Why did you choose to study Computer Science? 2. ...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
23
0
190 people solved
Jan 22, 2026
Asana logo
Asana
Medium
Software Engineer Locked

Design an Extensible Animal-Chess Game Engine

Design an extensible object-oriented engine for a turn-based animal-chess game whose concrete rules arrive separately. Separate immutable state, move ...

Software Engineering FundamentalsLow-Level Design (OOP)
16
0
251 people solved
Jul 16, 2026
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