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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
Whatnot logo
Whatnot
Medium
Software Engineer

Minimum Department Visits to Buy a Shopping List from a Store Map

A store map lists every product in a store together with the department where it is shelved. You have a shopping list of products to buy. Walking into...

Coding & AlgorithmsArrays & Strings
1
0
15 people solved
Sep 22, 2026
Cursor logo
Cursor
Medium
Software Engineer Locked

Design a CI/CD Job Scheduler

Design a multi-tenant CI/CD scheduler with dependency-aware jobs, fair resource placement, durable state, retries, and worker-loss recovery.

System Design
14
0
204 people solved
Aug 21, 2026
Amazon logo
Amazon
Hard
Software Engineer

Debug Failing Tests in a Django Movie Search and Filter API

You are given an existing Django project that serves a movie catalog API, together with a suite of automated tests, several of which fail. You have 60...

Software Engineering FundamentalsDebugging
2
0
36 people solved
Sep 9, 2026
DRW logo
DRW
Hard
Quantitative ResearcherNew Grad

Expected Tosses Until HHT Given HHT Appears Before HTH

A fair coin is tossed repeatedly until either the pattern HTH or the pattern HHT appears in three consecutive tosses. Given that HHT appears first, wh...

Statistics & MathProbability
3
0
34 people solved
Sep 13, 2026
Robinhood logo
Robinhood
Easy
Software Engineer

Design an iOS Timer App with Consistent State and Asynchronous UI Updates

Design and implement the structure of a small iOS timer application, focusing on state management, UI updates, and asynchronous work. Explain how time...

Software Engineering FundamentalsiOS
1
0
30 people solved
Sep 15, 2026
Squarepoint logo
Squarepoint
Medium
Data Scientist

Find the Expected Distance of a Uniform Point from a Disk's Center

A point is chosen uniformly at random from the area of a disk of radius one. What is its expected distance from the center? Constraints and Clarificat...

Statistics & MathProbability
2
0
33 people solved
Sep 9, 2026
Cursor logo
Cursor
Medium
Software Engineer Locked

Implement and Explain a Merkle Tree

Clarify a Merkle-tree coding contract before implementing construction, hashing conventions, optional proofs or updates, edge cases, and complexity.

Software Engineering Fundamentals
20
0
183 people solved
Aug 21, 2026
Waymo logo
Waymo
Medium
Software Engineer

Parse a Raw CSV String Into a Structure for Downstream Teams, Handling Corrupted Rows

In a 45-minute phone screen, the interviewer describes the problem out loud instead of pasting a prompt, and you take notes. Another engineering team ...

Software Engineering FundamentalsParsing & Interpreters
2
0
41 people solved
Sep 10, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Process Orders Through a DAG with Completion and Timeout Refunds

Design and implement the core of an order-processing workflow represented as a DAG. Support order submission and status queries. An order that complet...

System DesignJob Scheduling & WorkflowsDistributed Coordination
2
0
39 people solved
Sep 10, 2026
OpenAI logo
OpenAI
Medium
Machine Learning Engineer Locked

Simulate Infection Spread with Immunity and Recovery

Simulate simultaneous infection spread and timed recovery on a grid containing susceptible, infected, immune, recovered, and empty cells, then return ...

Coding & AlgorithmsSimulation & State Machines
48
1
684 people solved
Aug 15, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Design a Review and Rating System for Food Delivery Menu Items

Design a review system for a food-delivery platform: customers rate and review the individual food items they ordered, and people browsing a restauran...

System DesignSystem Design Fundamentals
7
0
45 people solved
Sep 7, 2026
Meta logo
Meta
Medium
Software Engineer

Diagnose a Single-Server Crash with Concrete Linux Evidence

A single server has crashed. Walk through how you would determine what failed, restore service safely, and identify the root cause. Explain the concre...

Software Engineering FundamentalsDebugging
3
0
34 people solved
Sep 17, 2026
Google logo
Google
Medium
Software Engineer

Count Up-Right/Right/Down-Right Grid Paths Through Ordered Checkpoints

You are given an n x m grid. Rows are numbered 0 to n - 1 from top to bottom, and columns 0 to m - 1 from left to right. A path starts at the bottom-l...

Coding & AlgorithmsDynamic Programming
1
0
20 people solved
Sep 16, 2026
Google logo
Google
Medium
Software Engineer

Mouse-to-Cheese Grid Path That Maximizes the Minimum Distance to a Cat

You are given an N x N grid that contains a mouse's starting cell S, a piece of cheese at T, a cat at C, water cells and land cells. The mouse moves o...

Coding & AlgorithmsGrids & MatricesGraphs
1
1
25 people solved
Sep 17, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Make Rider Addition and Dispatch Safe Under Concurrency

A rider-assignment system supports adding available riders and dispatching a rider to work. Identify and fix the concurrency problems that can occur w...

Software Engineering FundamentalsConcurrency
3
0
38 people solved
Sep 10, 2026
LinkedIn logo
LinkedIn
Hard
Software Engineer

Shortest Word Distance Queries

Shortest Word Distance Queries Implement shortest_word_distances(words: list[str], queries: list[list[str]]) -> list[int]. Preprocess the fixed word s...

Coding & Algorithms
13
1
151 people solved
Sep 1, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Software Engineer

Collect the Most Rocks with Upward and Rightward Moves

A rectangular grid contains a nonnegative number of rocks in each cell. For this practice version, begin at the bottom-left cell and finish at the top...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
17
0
115 people solved
Sep 1, 2026
Pinterest logo
Pinterest
Medium
Data Scientist

Calculate the Percentage of Highly Active Users by Country

Calculate the Percentage of Highly Active Users by Country The impressions table has these columns: | Column | Meaning | |---|---| | impression_id | I...

Data Manipulation (SQL/Python)SQL
1
0
20 people solved
Sep 24, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Design a Scalable Calendar Service

Design a scalable calendar service. Explain its overall architecture, core components, and the design decisions that change as usage grows. Requiremen...

System DesignSystem Design Fundamentals
5
0
38 people solved
Sep 12, 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
0
0
14 people solved
Sep 28, 2026
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