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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026

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>Build a 30-day plan from PracHub's Meta SWE questions.

Two weeks of coding, then system design, then mock rounds. Start day 1?

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
Stripe logo
Stripe
Hard
Software Engineer

Find Weekly Deployment Windows Across Time Zones

Problem A week is a repeating timeline of 10080 minutes. Teams define local-time intervals that either allow or freeze deployments, together with fixe...

Coding & AlgorithmsIntervals & Scheduling
132
0
1984 people solved
Aug 27, 2026
Amazon logo
Amazon
Hard
Software Engineer

Minimum Priority Conflicts When Interleaving Two Lowercase Strings

You are given two strings, primary (length m) and secondary (length n), made of lowercase English letters. Merge them into one string of length m + n ...

Coding & AlgorithmsDynamic Programming
2
0
47 people solved
Sep 30, 2026
Amazon logo
Amazon
Hard
Software Engineer

Fix a Buggy Spring Boot Movie Search Against Five Search Rules

You are given an existing Spring Boot backend that powers a movie search feature, and the search returns wrong results. The search logic is complicate...

Software Engineering FundamentalsDebugging
9
0
90 people solved
Sep 30, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Spreadsheet engine with setCell/getCell, cell references, and cycle detection

Implement a spreadsheet engine with two operations: - set_cell(cell, content) stores the content of a cell (setCell in camelCase languages). A cell is...

Software Engineering FundamentalsGraphs
19
0
180 people solved
Sep 28, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

GPU Credit Ledger: Spend Earliest-Expiring Credits First, Stop on Overdraft

Implement an in-memory ledger of GPU credits for one account. Credits are granted in amounts that expire, usage is charged against them, and the balan...

Software Engineering FundamentalsData Structure Design
8
0
98 people solved
Sep 22, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Respond to a Hypothetical Loss of Employer Equity Value

In a hypothetical situation, the value of your employer's stock falls to zero. How would you respond? Explain what you would want to understand, how y...

Behavioral & LeadershipMotivation & FitAmbiguity & Decision Making
116
1
972 people solved
Sep 12, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design coffee-shop card payments with tips and nightly batch settlement at scale

Design the payment system for coffee shops that take card payments at the counter. A customer's card is swiped for the purchase, the customer can add ...

System DesignPayments & LedgersDistributed Transactions & Idempotency
9
0
63 people solved
Sep 28, 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
5
0
55 people solved
Sep 28, 2026
Decagon logo
Decagon
Medium
Software Engineer

Send Requests in Batches of Five and Retry Failures After a Per-Request Delay

You are given a list of requests and must deliver every one of them to a dummy API. The API is batch-oriented: a single call carries at most 5 request...

Software Engineering FundamentalsAPI Integration & HTTP Clients
8
0
83 people solved
Sep 24, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Compare Threads and Processes for Image Processing

Compare threads and processes in the context of an image-processing workload. Explain their memory and execution models, then describe how you would c...

Software Engineering FundamentalsOperating SystemsConcurrency
31
0
373 people solved
Sep 12, 2026
Apple logo
Apple
Medium
Software Engineer

Unit Ratio Queries Across Independent Unit Families with Modular Answers

There are n units of measure, numbered 0 to n - 1. The units fall into several independent families: units in the same family can be converted into on...

Coding & AlgorithmsGraphsMath & Number Theory
4
0
55 people solved
Sep 27, 2026
Stripe logo
Stripe
Medium
Software EngineerSenior+

Connect JSON Coordinates Through a Documented Drawing API

Design a small program that reads JSON coordinate data and calls a provided drawing API to connect the points into a map or line drawing. Explain how ...

Software Engineering FundamentalsAPI Integration & HTTP Clients
16
0
161 people solved
Sep 11, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Debug a Small PyTorch Transformer with Four Bugs, Then Add a KV Cache

This machine learning coding round has two parts. First, a small decoder-only transformer language model and its training step contain four bugs; find...

Machine LearningML CodingTransformers & Attention
9
0
76 people solved
Sep 20, 2026
Amazon logo
Amazon
Medium
Software Engineer

Grid Reachability for a Robot That Cannot Reverse and Has Restricted Turns

A robot moves on a rectangular grid given as a list of equal-length strings. Each character is one cell: - '0': an open cell - 'X': a blocked cell - '...

Coding & AlgorithmsGrids & MatricesGraphs
9
1
102 people solved
Sep 20, 2026
Amazon logo
Amazon
Medium
Software Engineer

Design a Kafka-Based File Watcher for Millions of Files

Design a file-watcher system that handles millions of files and uses Kafka to deliver change events to downstream consumers. Explain initial discovery...

System DesignMessaging & Event-DrivenData Ingestion & CDC
12
0
85 people solved
Sep 20, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Sizes of 4-Connected Foreground Regions in a Binary Image, in Scan Order

An image is represented by a rectangular binary matrix image with m rows and n columns. A cell holding 1 is a foreground pixel, and a cell holding 0 i...

Coding & AlgorithmsGrids & Matrices
4
0
41 people solved
Sep 30, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Hand-Written Gradients: Prefix-Product Backward Pass and Stable Cross-Entropy

This machine learning coding round asks you to write gradients by hand, the way an automatic differentiation (autograd) engine would, without using an...

Machine LearningML Coding
11
0
87 people solved
Sep 20, 2026
Rippling logo
Rippling
Medium
Software EngineerSenior+

Design Raw and Computed Spreadsheet Views

Design a spreadsheet object model that can display both a cell's raw content and its computed value. A raw value may be a literal or a formula; changi...

Software Engineering FundamentalsLow-Level Design (OOP)Graphs
7
0
93 people solved
Sep 18, 2026
Stripe logo
Stripe
Medium
Software Engineer

Data Center Health Registry, Haversine Distance and Nearest-Healthy Routing

Build a small in-memory service that sends each client to a nearby data center. The exercise has three parts, each building on the previous one, and i...

Software Engineering FundamentalsMath & Number Theory
6
0
42 people solved
Sep 30, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design Power-Grid Device Monitoring over Unreliable Networks: Dedup and Late Events

Design a monitoring platform for devices deployed across a power grid, such as meters and sensors at substations and along lines. Each device periodic...

System DesignDistributed Transactions & Idempotency
9
0
87 people solved
Sep 20, 2026
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