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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
Mistral AI logo
Mistral AI
Medium
Software Engineer Locked

Solve Probability and Logic Puzzles Under Interview Pressure

This Mistral AI statistics and math question prepares candidates for probability and logic puzzles under time pressure. It evaluates structured reason...

Statistics & MathPuzzles & BrainteasersProbability
24
0
233 people solved
Jul 2, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Explain your perspective on AI safety

Question OpenAI software engineer onsite, behavioral round. The interviewer spends most of the session on your views about AI safety — what it means i...

Behavioral & LeadershipEthics & Responsibility
98
0
696 people solved
Dec 8, 2025
Molocoads logo
Molocoads
Medium
Machine Learning Engineer Locked

Compare Gradient Methods, Linear Regression, and Feature Encoding

Compare batch, stochastic, and mini-batch gradient methods alongside linear-regression assumptions and feature encoding choices. The answer connects o...

Machine Learning
4
0
32 people solved
Aug 26, 2026
Databricks logo
Databricks
Hard
Software Engineer Locked

Implement a Tic-Tac-Toe game API

This question evaluates implementation skills in data structures and algorithmic optimization, focusing on efficient state tracking and constant-time ...

Coding & AlgorithmsSimulation & State MachinesData Structure Design
24
0
171 people solved
Jan 7, 2026
New Relic logo
New Relic
Medium
Backend Engineer

Longest Strictly Increasing Path in a Grid with Four-Directional Moves

Given an R x C matrix of integers, return the number of cells on the longest path along which the values strictly increase from each cell to the next....

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
2
0
30 people solved
Sep 23, 2026
Roblox logo
Roblox
Medium
Software Engineer Locked

Implement a Rolling-Window Rate Limiter

Implement a single-process rolling-window rate limiter where only accepted requests consume capacity. Define exact boundary behavior, expire old times...

Software Engineering FundamentalsData Structure DesignRate Limiting
82
2
588 people solved
Jul 13, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Most Frequent Substring Within a Length Range and a Distinct-Letter Limit

Given a string s, consider every substring whose length is between min_length and max_length (inclusive) and that contains at most max_unique distinct...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
3
0
29 people solved
Aug 2, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Design a Logger with Independent Handlers

Design a logging library with independent handlers, immutable records, isolated failures, bounded backpressure, and safe runtime reconfiguration.

Software Engineering Fundamentals
23
0
295 people solved
Aug 21, 2026
Together AI logo
Together AI
Medium
Software Engineer

Historical Lookups in a Timestamped Key-Value Store

Implement a timestamped key-value store and answer historical lookups. A lookup for a key at time t returns the value written at the greatest timestam...

Coding & AlgorithmsData Structure DesignBinary Search
14
0
103 people solved
Apr 19, 2026
Pinterest logo
Pinterest
Medium
Software Engineer

Pack Boxes Through a One-Sided Warehouse

Problem boxes gives the heights of unit-width boxes, and warehouse gives the room heights from left to right. You may choose the boxes’ insertion orde...

Coding & AlgorithmsGreedySorting
1
2
12 people solved
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Find the Maximum Depth of a Binary Tree

Find binary-tree depth from a portable child-index representation, including empty trees and highly unbalanced root-to-leaf paths.

Coding & AlgorithmsTrees
7
0
55 people solved
Sep 12, 2026
Chicago Trading Company logo
Chicago Trading Company
Medium
Software Engineer Locked

Design a Pre-Trade Risk Check for an Electronic Order Path

Design a fail-closed pre-trade risk gate that no outbound electronic order can bypass. Explore atomic exposure reservation under concurrency, idempote...

System Design
7
0
63 people solved
Jul 1, 2026
Visa logo
Visa
Medium
Software EngineerSenior+

Design a Ride-Hailing Backend That Matches Riders With Nearby Drivers

Design the backend for an Uber-style ride-hailing service. Riders request a trip from a pickup point to a destination; the system finds a nearby avail...

System DesignGeo & Delivery SystemsDistributed Coordination
0
0
16 people solved
Aug 6, 2026
Stripe logo
Stripe
Medium
Software Engineer Locked

Generate a ride map image via POST API

This question evaluates a candidate's competency in geospatial data processing and HTTP API integration, including JSON parsing, coordinate batching f...

Software Engineering FundamentalsAPI Integration & HTTP Clients
66
0
794 people solved
Jan 22, 2026
Databricks logo
Databricks
Hard
Software Engineer Locked

Design a multi-threaded synchronous log writer

This question evaluates a candidate's understanding of concurrent programming, durable I/O, synchronization primitives, ordering guarantees, and syste...

Software Engineering FundamentalsConcurrencyOperating Systems
34
1
631 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Discuss a Disagreement with a Teammate

Describe a teammate disagreement fairly, explain the evidence and decision process, and account for follow-through and the outcome.

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
1
0
27 people solved
Aug 25, 2026
Google logo
Google
Medium
Software Engineer Locked

Behavioral Deep Dive: Task Overload, Mid-Project Pivot, Team Innovation, Onboarding

A behavioral round built on variants of common questions with deep follow-ups: handling more tasks than expected and why the conflict arose, changing ...

Behavioral & LeadershipOwnership & ExecutionInnovation & Simplification
2
0
36 people solved
Sep 8, 2026
ByteDance logo
ByteDance
Medium
Software EngineerNew Grad

Design a Ticket Booking System for High-Demand On-Sales Without Overselling

Design a ticket booking system for high-demand events. Tickets go on sale at a published moment, and far more people try to buy than there are tickets...

System DesignSystem Design FundamentalsTransactions & Isolation
2
0
20 people solved
Aug 17, 2026
Bnsf logo
Bnsf
Medium
Software Engineer

Implement CRUD API and tests

You are given two software-engineering tasks. 1. Implement a simple REST API for a resource such as Note or Message. - Support basic CRUD operation...

Software Engineering FundamentalsAPI DesignTesting & Quality
37
0
325 people solved
Jan 15, 2026
Microsoft logo
Microsoft
Hard
Software Engineer

Design a fault-tolerant load balancer for a cloud compute layer

Design a load balancer for the compute layer of a cloud platform: it receives client traffic and spreads it across a pool of backend compute instances...

System DesignSystem Design FundamentalsFault Tolerance & Failover
0
0
8 people solved
Aug 5, 2026
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