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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
Meta logo
Meta
Medium
Software Engineer AI

Maximize Unique Characters from Words

You are given a list of lowercase English words. Select a subset of the words such that no character appears more than once across all selected words....

Coding & Algorithms
5
0
62 people solved
Mar 17, 2026
Distyl logo
Distyl
Hard
Software Engineer Locked

Design a Grounded LLM Assistant for Case Preparation

Design a grounded LLM assistant that organizes legal-dispute documents and drafts case-preparation material for human review. Address matter isolation...

ML System Design
16
0
115 people solved
Jul 23, 2026
Mercor logo
Mercor
Medium
Software Engineer

Sorting Complexity: Beating O(n^2), Quicksort's Worst Case, and a Slower Sort

This is a verbal discussion about sorting, and no code is written. The interviewer starts from the observation that a straightforward insertion sort t...

Software Engineering FundamentalsSortingMath & Number Theory
9
0
71 people solved
May 1, 2026
Spotify logo
Spotify
Medium
Backend Engineer

Staying Productive When Project Requirements Were Unclear or Kept Changing

Tell me about a project where the requirements were unclear at the start or kept changing while you worked on it. How did you adapt, and how did you k...

Behavioral & LeadershipAmbiguity & Decision MakingCommunication & Stakeholders
3
0
20 people solved
Jul 7, 2026
Google logo
Google
Medium
Software EngineerNew Grad Locked

Design an Employee Coverage Timeline

Use a grouped sweep line and per-ID reference counts to build employee coverage segments while preserving consistent IDs and names across overlapping ...

Software Engineering Fundamentals
3
0
35 people solved
Jun 7, 2026
Goldman Sachs logo
Goldman Sachs
Easy
Software Engineer Locked

Search for a Target in a Matrix Sorted by Rows and Columns

Decide whether a target value appears in an integer matrix whose rows and columns are each sorted in non-decreasing order. It tests how well a candida...

Coding & AlgorithmsGrids & Matrices
9
0
72 people solved
Sep 13, 2026
Interactive Brokers logo
Interactive Brokers
Medium
Software Engineer Locked

Calculate Tax Under Progressive Income Brackets

Calculate income tax under progressive brackets by applying each rate only to the portion of income inside that bracket. Handle zero income, exact bou...

Coding & Algorithms
2
0
34 people solved
Aug 18, 2026
Rippling logo
Rippling
Hard
Software Engineer Locked

Design a Hotel Booking System

This question evaluates system design and backend architecture competencies, including data modeling, transactional integrity, concurrency control, sc...

System DesignSystem Design FundamentalsTransactions & Isolation
46
0
440 people solved
Feb 1, 2026
Medium logo
Medium
Medium
Product Manager

Keeping Harmful Content Off Instagram at the Point of Upload

You are a product manager at Instagram. How would you keep "bad" content from being uploaded to the platform? The question is about social media platf...

Product Design & StrategyTrust & SafetyMetrics & KPIs
0
0
8 people solved
Jul 2, 2026
Roblox logo
Roblox
Medium
Software Engineer

Design robot path boundedness with repeats

You are given a 2D grid with a set of blocked cells (obstacles) and a robot starting at (0, 0) facing north. The robot executes a finite instruction s...

Coding & AlgorithmsSimulation & State Machines
39
0
307 people solved
Aug 1, 2025
Meta logo
Meta
Medium
Product Manager

Messenger video calling product plan: pick a caller segment and prioritize fixes

You are a product manager on Meta's Messenger team. Messenger, Meta's messaging app, lets people start video calls with one person or with a group. Ho...

Product Design & StrategyProduct Design & ImprovementPrioritization & Tradeoffs
0
0
9 people solved
Sep 26, 2026
Apple logo
Apple
Medium
Software EngineerIntern

Solve mixed coding tasks from interviews

Solve the following interview-style coding problems (you may choose any programming language unless specified). Provide correct logic and handle edge ...

Coding & AlgorithmsTreesSorting
20
0
212 people solved
Feb 9, 2026
Nextdoor logo
Nextdoor
Easy
iOS Engineer Locked

Flatten Nested Comments

This question evaluates proficiency with tree traversal and hierarchical data manipulation, specifically recursion versus iterative approaches and enf...

Coding & Algorithms
7
0
106 people solved
Jan 15, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Optimize a small-string C++ class

You are implementing a high-performance C/C++ string type that uses a small-string optimization: short strings are stored inline in a fixed buffer, an...

Software Engineering FundamentalsProgramming LanguagesMemory Management
18
0
174 people solved
Dec 18, 2025
TCS logo
TCSMeta
Easy
Software Engineer

Find All Strict Interior Peak Indices

Find All Strict Interior Peak Indices You are given a 0-indexed integer array mountain. An interior index i is a peak when its value is strictly great...

Coding & AlgorithmsArrays & Strings
1
0
10 people solved
Uber logo
Uber
Medium
Software EngineerSenior+ Locked

Design a Ride-Sharing System (Uber-style Core Platform)

This question evaluates a candidate's ability to design a large-scale, real-time geospatial matching system under strict availability and consistency ...

System DesignGeo & Delivery SystemsReal-Time Systems
12
0
164 people solved
Jun 28, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Compute reachable cells for a cleaning robot

This question evaluates understanding of graph traversal, state-space modeling, and scalability when computing reachable cells on a 2D grid under 8-di...

Coding & AlgorithmsGrids & Matrices
53
0
371 people solved
Jan 22, 2026
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+

Solve Cache, Window, and Heap Problems

You may be asked to solve multiple algorithmic problems in coding rounds: 1. Frequency-based cache: Implement a cache with get(key) and put(key, value...

Coding & Algorithms
9
0
147 people solved
Feb 16, 2026
Google logo
Google
Medium
Software Engineer Locked

Determine whether two nodes are related

This question evaluates understanding of graph representations, reachability and connectivity concepts for ancestry relationships, including handling ...

Coding & AlgorithmsGraphs
40
2
273 people solved
Jan 22, 2026
Sierra logo
Sierra
Medium
Product Manager

Allocating One Engineer-Week Among Conflicting Enterprise Customer Asks

You have one engineer for one week, and several enterprise customers are each pressing for something different. How would you decide what that enginee...

Product / Decision MakingPrioritization & Tradeoffs
1
0
15 people solved
May 22, 2026
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