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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
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Detect Repeated Patterns in a String Sequence

Detect whether a fixed-length block of strings appears consecutively at least the required number of times, following the cited repeated-pattern probl...

Coding & Algorithms
6
1
86 people solved
Sep 2, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Implement a Thread-Safe Per-Key Ordered Executor

Implement an in-process component constructed with maxConcurrent and an existing thread-pool executor. It exposes submit(key, task) and must preserve ...

Software Engineering FundamentalsConcurrency
3
0
33 people solved
Sep 10, 2026
xAI logo
xAI
Medium
Software EngineerNew Grad

Design a URL Shortening Service: Code Generation, Redirect Path, and Scaling

Design a URL shortening service. A user submits a long URL and gets back a short link; anyone who opens the short link is redirected to the original U...

System DesignSystem Design Fundamentals
4
0
32 people solved
Sep 5, 2026
Glean logo
Glean
Medium
Software Engineer

Find the Cell with the Smallest Total Walking Distance to All Targets Around Walls

You are given a 2D grid in which every cell is a target 'x', an empty cell '.' or a wall 'w'. Find a cell whose total walking distance to all targets ...

Coding & AlgorithmsGrids & Matrices
1
0
10 people solved
Sep 30, 2026
Capital One logo
Capital One
Hard
Machine Learning Engineer

Count Pairs of Numbers That Become Equal After at Most One Digit Swap

You are given a list of non-negative integers nums. Two numbers form a matching pair if they are equal, or if you can make them equal by choosing one ...

Coding & AlgorithmsArrays & Strings
1
0
35 people solved
Sep 3, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning Engineer

Design a Personalized Feed and Compare Ranking Objectives

Design a personalized professional-network news feed, similar in purpose to LinkedIn's feed. Explain the recommendation system from data and features ...

ML System DesignRanking ModelsRecommendation Systems
5
0
50 people solved
Sep 9, 2026
Robinhood logo
Robinhood
Medium
Software Engineer

Design a Job Scheduler with Durable State and Failure Recovery

Design a job scheduler. Explain how clients create work, how the system decides when work is eligible to run, how workers execute it, and how the sche...

System DesignJob Scheduling & Workflows
3
0
28 people solved
Sep 11, 2026
DoorDash logo
DoorDash
Hard
Software Engineer Locked

Design a Multi-Service Workflow Engine

Design a locally runnable workflow engine made of collaborating services, with durable state, retries, idempotency, and failure recovery.

System Design
16
0
110 people solved
Sep 1, 2026
Reddit logo
Reddit
Hard
Software Engineer Locked

Design Add, Overwrite, Undo, and Redo for Billing State

Design billing-state commands that progress from additive updates to absolute overwrites and reversible history. The answer defines before-and-after c...

Software Engineering Fundamentals
10
0
78 people solved
Sep 4, 2026
Visa logo
Visa
Medium
Software Engineer

Java Fundamentals: Polymorphism and Monolith Versus Microservices

This round opened with Java fundamentals. Two of the questions were reported: explain polymorphism, and compare a monolithic architecture with microse...

Software Engineering FundamentalsProgramming LanguagesMicroservices & Service Architecture
1
0
14 people solved
Sep 27, 2026
Google logo
Google
Medium
Software Engineer

Earliest Time of Full Connectivity

Earliest Time of Full Connectivity Implement earliest_full_connection(n: int, events: list[list[int]]) -> int. There are n entities labeled 0 through ...

Coding & Algorithms
13
4
204 people solved
Aug 18, 2026
NVIDIA logo
NVIDIA
Hard
Software EngineerNew Grad

Verification Plan for a FIFO, a Round-Robin Arbiter and a Valid/Ready Handshake

In a hardware design-verification interview, you are handed a small block and its spec and asked how you would verify it: the verification architectur...

Software Engineering Fundamentals
1
0
21 people solved
Sep 17, 2026
Databricks logo
Databricks
Medium
Software Engineer

Forward Deployed Engineer Screen: Role Fit, Client Work and Databricks Projects

This is a short recruiter screen, about 15 minutes by phone, for a Forward Deployed Engineer (FDE) role at Databricks, a data and AI platform company....

Behavioral & LeadershipMotivation & Fit
2
0
25 people solved
Sep 12, 2026
Rippling logo
Rippling
Medium
Software Engineer AI

Implement logger and card ranking

This coding round contains two independent implementation tasks. Task A: Implement a configurable logger Implement a Logger component that accepts tex...

Coding & AlgorithmsSortingData Structure Design
87
2
639 people solved
Apr 19, 2026
Google logo
Google
Medium
Software EngineerSenior+

How Would You Verify a Smiling-Face Detection Feature in Google Photos?

Imagine you are part of the Google Photos team, and your feature detects smiling faces in photos. How would you verify that the detection is correct? ...

Machine LearningTesting & QualityModel Evaluation
3
0
19 people solved
Sep 8, 2026
Harvey logo
Harvey
Hard
Software Engineer Locked

Build an In-Memory File Vault with Duplicate-Name Handling

Build an in-memory file vault that creates missing directories and resolves duplicate names with the smallest available numeric suffix. Support file a...

Coding & AlgorithmsLow-Level Design (OOP)
27
1
346 people solved
Aug 8, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Read Current and Historical Field Values with Expiration

Process key-and-field database writes, TTL expiration, deletion, and historical reads while preserving past values without rolling back current state.

Coding & AlgorithmsData Structure DesignBinary Search
4
0
77 people solved
Sep 1, 2026
Waymo logo
Waymo
Medium
Software Engineer

Character at a Position in a Run-Length Encoded String Without Decoding

A sequence of characters has been stored with run-length encoding: each maximal run of one repeated character is written as the character followed by ...

Coding & AlgorithmsBinary Search
4
0
31 people solved
Sep 10, 2026
Jane Street logo
Jane Street
Easy
Quantitative TraderIntern

Solve probability and game-theory puzzles

You are interviewing for a quant trading internship. Work through the following probability and game-theory puzzles. There is no need to answer instan...

Statistics & MathPuzzles & BrainteasersProbability
426
0
3091 people solved
Dec 1, 2025
OpenAI logo
OpenAI
Medium
Applied Scientist

Extensible card-hand ranking: three of a kind, flush, pair and a discard rule

Build a small card game in code. Each player holds a hand of cards; the program ranks the hands, decides the outcome, and returns a log of the whole p...

Software Engineering FundamentalsLow-Level Design (OOP)
1
0
12 people solved
Sep 17, 2026
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