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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
Anduril logo
AndurilAmazonTikTok

Also asked at TikTok, Snapchat, Microsoft, Google, Oracle, Bloomberg, Coupang, Walmart Labs, ServiceNow, Aurora

Medium
Software Engineer

Count Island Shapes up to Translation Only

Problem Land cells equal one and connect only through shared edges. Two islands have the same shape exactly when translating one set of cells makes it...

Coding & AlgorithmsGrids & Matrices
6
0
53 people solved
Roblox logo
Roblox
Medium
Software Engineer

Build an Auto-Rotating Traffic Light in Vanilla JavaScript Without a Framework

Build a traffic light in the browser using only plain HTML, CSS and JavaScript, with no framework or library. The light has three lamps, red, yellow a...

Software Engineering FundamentalsSimulation & State MachinesJavaScript & TypeScript
7
0
87 people solved
Oct 1, 2026
Basis logo
Basis
Medium
Machine Learning Engineer

Debug an LLM Agent Codebase: Find and Fix Bugs in the Agent Loop and Its Tools

In this round you are given the codebase of an LLM agent project and asked to find and fix its bugs. The bugs can be in the agent's tools or in the ag...

Software Engineering FundamentalsDebuggingAI Agents
3
0
39 people solved
Sep 26, 2026
Amazon logo
Amazon
Medium
Software Engineer

Max total of k consecutive bags over disjoint valued segments, modulo 1e9+7

Bags stand in a single row that never ends, one bag at every positive integer position 1, 2, 3, .... You are given segments, where segments[i] = [l, r...

Coding & AlgorithmsTwo Pointers & Sliding WindowIntervals & Scheduling
22
0
191 people solved
Sep 12, 2026
Glean logo
Glean
Medium
Software Engineer

Group Words into Transitive Synonym Sets by Shared Two-Words-Before-and-After Context

You are given a list of sentences. Two words are considered synonyms if they appear in the same context: the same two words immediately before them an...

Coding & AlgorithmsGraphsArrays & Strings
5
0
85 people solved
Sep 30, 2026
Cresta logo
Cresta
Medium
Software Engineer

Build a Tool-Calling Chat Agent That Searches and Books Flights via a REST API

In an AI-assisted coding round, you are given an API document (api.md) and a starter script (agent_starter.py). Using AI assistance, implement an AI a...

Software Engineering FundamentalsAPI Integration & HTTP ClientsAI Agents
16
0
234 people solved
Sep 23, 2026
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+

Extend a Log-Processing Codebase: Priority Classification, Tests, Time-Window Query

In this round you receive a long requirements document and several existing source files, and you extend that code with log-processing features while ...

Software Engineering FundamentalsAI-Assisted DevelopmentTesting & Quality
9
0
72 people solved
Sep 29, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design a text-to-video GPU job scheduler with one GPU per task and fair queueing

Design the backend of a text-to-video generation service. Users submit generation requests, and each request becomes a task that runs on a GPU fleet. ...

System DesignJob Scheduling & WorkflowsFault Tolerance & Failover
30
0
281 people solved
Sep 28, 2026
Instacart logo
Instacart
Medium
Software Engineer

Design an Inventory Service with Stock Reservations That Prevents Overselling

Design an inventory service for a store that sells items in limited stock. When customers place orders, the service must reserve stock for them so tha...

System DesignSystem Design FundamentalsTransactions & Isolation
8
0
62 people solved
Oct 10, 2026
Airbnb logo
Airbnb
Medium
Software Engineer

Task Management System: Priorities, Name Search, User Quotas and Expiring Assignments

Implement an in-memory task management system in an online, four-level progressive coding assessment. Each level adds requirements on top of the previ...

Software Engineering FundamentalsLow-Level Design (OOP)
31
0
285 people solved
Sep 12, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Find a Hidden Number When Each Comparison Answer Arrives One Call Late

Find a hidden integer from 1 to n using a comparison API whose answers arrive one call late: each call submits a new guess but returns the result for ...

Software Engineering FundamentalsBinary Search
49
0
362 people solved
Sep 20, 2026
Google logo
Google
Medium
Software Engineer

Implement quicksort and a binary search tree, and explain how each works internally

During an algorithm-focused technical round, the interviewer went beyond the coding problem and asked how the algorithms and data structures used in t...

Software Engineering FundamentalsSortingTrees
6
1
39 people solved
Oct 5, 2026
Cresta logo
Cresta
Medium
Software Engineer

Search a Directory Tree for a File and Return Its Absolute Path in Python

You are given the path of a directory. Write a Python function that searches that directory and all of its subdirectories for the file that meets a gi...

Software Engineering FundamentalsProgramming LanguagesOperating Systems
3
1
67 people solved
Oct 6, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Behavioral: why OpenAI, AI safety views, 0-to-1 work, feedback, defining success

These behavioral questions are reported from OpenAI's software engineering interview loop. The recruiter call asks how you think about AGI and AI safe...

Behavioral & LeadershipMotivation & FitEthics & Responsibility
5
0
98 people solved
Sep 28, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Build a Rectangle Board with Remove-at-Cell, Batch Remove, and Undo

Implement a 2D board that holds axis-aligned rectangles. The requirements arrive one at a time, and each Part builds on your code from the previous on...

Software Engineering FundamentalsData Structure DesignLow-Level Design (OOP)
37
0
286 people solved
Aug 30, 2026
MathWorks logo
MathWorks
Medium
Software EngineerNew Grad

Optimize Repeated Mirrored XOR Updates

Repeatedly apply the following in-place operation to an array: `text arr[i % n] = arr[i % n] XOR arr[n - (i % n) - 1] ` The operation count k can be a...

Coding & AlgorithmsBit ManipulationArrays & Strings
0
1
13 people solved
Oct 30, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Explain How Goals and Performance Were Evaluated

How did performance expectations and objectives or key results work in a previous role? Explain how goals were set, how progress was assessed, and how...

Behavioral & LeadershipOwnership & Execution
1
0
14 people solved
Oct 24, 2026
eBay logo
eBay
Medium
Machine Learning Engineer

Describe Your Most Challenging Machine Learning Project and Your Key Decisions

The interviewer asks: tell me about the most challenging project you have worked on. The role is a machine learning position, so expect the follow-up ...

Behavioral & LeadershipProject Deep Dive
1
0
14 people solved
Oct 24, 2026
Jane Street logo
Jane Street
Medium
Software EngineerIntern Locked

Design Exchange and Instrument Abstractions for Quote Arbitrage

Design cross-exchange quote and execution abstractions, correct a reported spread error, and handle distinct venues, stale quotes, and uncertain fills...

Software Engineering FundamentalsTrading SystemsLow-Level Design (OOP)
94
0
836 people solved
Aug 24, 2026
Glean logo
Glean
Medium
Software Engineer

Implement a Byte-Pair Encoding Tokenizer: Threshold Training, Encode and Decode

Implement a byte-pair encoding (BPE) tokenizer from scratch with three functions: - train(text: str, threshold: int) learns merge rules from text. - e...

Software Engineering FundamentalsArrays & StringsTransformers & Attention
3
0
67 people solved
Sep 30, 2026
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