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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
Amazon logo
AmazonGoogleMeta

Also asked at Meta, UiPath, CleverTap

Medium
Software Engineer

Decide Whether Letter-Variable Equalities and Inequalities Are Consistent

Problem Each four-character equation has the form x==y or x!=y, with lowercase single-letter variables that may be the same letter. Return whether int...

Coding & AlgorithmsGraphs
1
0
11 people solved
Da Vinci Trading logo
Da Vinci Trading
Hard
Software Engineer

Design an in-memory order matching engine

You are asked to design an in-memory order book / order matching system for a single electronic trading venue. The implementation language is C++, and...

System DesignTrading SystemsConcurrency
165
0
1171 people solved
Dec 8, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Design a Customer Payment Dispute Platform

Design a customer payment-dispute platform for eligibility checks, evidence submission, deadlines, status tracking, and final outcomes. Address retry-...

System Design
5
0
65 people solved
Aug 1, 2026
Databricks logo
Databricks
Hard
Software Engineer Locked

Design a Hierarchical File System

This question evaluates understanding of scalable distributed storage and namespace architecture, covering metadata versus data separation, inode-like...

System DesignStorage & ShardingFile & Media Storage
87
0
806 people solved
Mar 15, 2026
Oracle logo
Oracle
Medium
Software Engineer

Decide Whether a Parenthesis String With Star Wildcards Can Be Balanced

Given a string made only of the characters (, ) and `, decide whether it can be turned into a balanced parenthesis string by replacing every , indepen...

Coding & AlgorithmsGreedy
3
0
34 people solved
Sep 9, 2026
Microsoft logo
Microsoft
Hard
Software Engineer

Minimum number of meeting rooms for a set of meetings

Given the start and end times of a set of meetings, return the minimum number of rooms needed to hold all of them, where a room can host only one meet...

Coding & AlgorithmsIntervals & SchedulingHeaps & Priority Queues
1
0
14 people solved
Aug 5, 2026
Hudson River Trading logo
Hudson River Trading
Hard
Software Engineer Locked

Find a Local Minimum in One and Two Dimensions

This Hudson River Trading software engineering question covers finding a local minimum in one and two dimensions. It prepares candidates to compare se...

Software Engineering FundamentalsBinary Search
58
1
523 people solved
Jul 2, 2026
Oracle logo
Oracle
Medium
Software Engineer

Check That a String of Three Bracket Types Is Properly Nested

Given a string made only of the six bracket characters (, ), [, ], { and }, decide whether its brackets are properly nested. Function Signature `pytho...

Coding & AlgorithmsStacks & Queues
4
0
36 people solved
Sep 9, 2026
Amazon logo
Amazon
Medium
Software Engineer

Maximize weighted subsequence pairs with wildcards

You are given a string s of length n consisting only of characters '0', '1', and '!'. Each '!' can be replaced by either '0' or '1'. For the final bin...

Coding & AlgorithmsDynamic Programming
135
0
1209 people solved
Jan 27, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Implement a Time-Aware Task Manager

This question evaluates the ability to design and implement in-memory data structures and algorithms for time-aware state management, including per-us...

Coding & Algorithms
31
0
233 people solved
May 17, 2026
Uber logo
Uber
Medium
Software Engineer Locked

Assign Meetings to the Minimum Number of Rooms

Assign meetings to the minimum number of rooms while returning a deterministic room ID for every original interval. Use priority queues to release all...

Coding & Algorithms
7
0
51 people solved
Aug 16, 2026
Verkada logo
Verkada
Hard
Software Engineer

Intersect Motion Threshold Periods Across Cameras

Intersect Motion Threshold Periods Across Cameras Implement common_motion_periods(streams, threshold, end_time). Each camera stream is a nonempty list...

Coding & Algorithms
19
0
148 people solved
Apr 9, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, Akamai, HP, Ubisoft

Easy
Software Engineer

Find the Longest Palindrome Length From Available Letters

Find the Longest Palindrome Length From Available Letters Given a string s of uppercase and lowercase English letters, return the greatest length of a...

Coding & AlgorithmsArrays & StringsGreedy
0
0
7 people solved
Deshaw logo
Deshaw
Easy
Data Scientist

Variance of an Equal-Weight Portfolio with Uncorrelated and Equicorrelated Assets

A portfolio holds n assets. The return of every asset has variance 1, and the portfolio is equally weighted, with weight 1/n on each asset. Find the v...

Statistics & MathPortfolio Construction & Alpha ResearchProbability
2
0
33 people solved
Aug 6, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Design a Cron Job Scheduler

Design a distributed cron job scheduler — a service that triggers user-defined jobs on recurring, cron-style schedules. Assume worker (execution) capa...

System DesignJob Scheduling & WorkflowsDistributed Coordination
94
1
916 people solved
Apr 12, 2026
Rippling logo
Rippling
Hard
Software EngineerSenior+

Build Reliable Employee-Operations and Expense Intelligence Systems

Build Reliable Employee-Operations and Expense Intelligence Systems Design four connected capabilities: a tagged event counter for dashboards and bill...

System DesignSystem Design FundamentalsAuthentication & Authorization
20
0
303 people solved
May 1, 2026
Uber logo
Uber
Medium
Software Engineer

Robot Grid Route with Charging Cells: Fewest Charges, Then Battery, Then Moves

A robot must travel across a 2D grid from a starting cell to a destination cell. Each cell of the grid is one of these characters: - S: the starting c...

Coding & AlgorithmsGraphsGrids & Matrices
3
0
46 people solved
Jun 12, 2026
OpenAI logo
OpenAI
Medium
Product Manager

First-Release Scope for an AI Voice Pod Installed in Public Venues

Define the MVP for a voice-assistant pod, built like a home smart speaker, that is meant to sit in public places rather than in someone's home. What g...

Product Design & StrategyProduct SenseAI Product Management
0
0
8 people solved
Sep 24, 2026
Cisco logo
Cisco
Easy
Software Engineer

Python and pytest Fundamentals: Fixtures, Decorators, and Generators

Answer three fundamentals questions about Python and pytest. Use short code examples wherever they make an explanation concrete. Clarifying Questions ...

Software Engineering FundamentalsProgramming LanguagesTesting & Quality
2
0
42 people solved
Sep 19, 2026
NVIDIA logo
NVIDIA
Hard
Software EngineerSenior+ Locked

Determine Whether One Point Can Reach Another

Determine whether a target point with positive integer coordinates can be reached from a starting point using two coordinate-addition moves. Account f...

Coding & Algorithms
15
0
170 people solved
Jul 16, 2026
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