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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
Goldman Sachs logo
Goldman Sachs
Medium
Product Manager

Market Shifts Reshaping Corporate Cash and Liquidity Management Products

Which recent trends in liquidity solutions for corporate treasurers have caught your attention, and why do they matter? `hint Find the forces first Ra...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
1
0
14 people solved
Aug 26, 2026
Quince logo
Quince
Medium
Software Engineer Locked

Check Whether a Word Repeated K Times Is a Subsequence

Check whether k conceptual repetitions of a word form a subsequence of a source string using one left-to-right scan without materializing the potentia...

Coding & Algorithms
5
1
40 people solved
Aug 11, 2026
Moveworks logo
Moveworks
Medium
Software Engineer

Design a car rental booking system

System Design: Car Rental Booking System Design an online car rental system (like Hertz or Avis) that lets users search for available rental cars, get...

System DesignSystem Design FundamentalsConsistency & Availability
105
0
784 people solved
Dec 15, 2025
Anduril logo
AndurilGoogleMeta

Also asked at Meta, Bloomberg, Microsoft, Amazon

Medium
Software Engineer

Resolve Simultaneous Left and Right Domino Pushes

Problem dominoes contains L and R for initial left/right pushes and . for upright dominoes. Every second, a falling domino pushes its upright neighbor...

Coding & AlgorithmsSimulation & State MachinesTwo Pointers & Sliding Window
1
0
12 people solved
Google logo
Google
Easy
Software Engineer Locked

Count Rectangle Coverage on a Grid

Apply many inclusive rectangular increments to a square grid and return the final coverage count for every cell. The exercise emphasizes upper-bound e...

Coding & AlgorithmsGrids & Matrices
73
3
596 people solved
Jul 21, 2026
Brex logo
Brex
Medium
Software Engineer

Debug and Explain Fixes

Given a small codebase with failing unit tests, identify the root causes of the failures, fix the bugs, and explain the defects you found. Add minimal...

Coding & AlgorithmsDebugging
36
0
613 people solved
Aug 14, 2025
Meesho logo
Meesho
Medium
Product Manager

Zomato Revenue Levers and a Feasibility Check on a Tenfold One-Year Goal

Zomato is an Indian app for ordering food delivery and discovering restaurants. You are a product manager there. Propose a monetization strategy that ...

Product Design & StrategyGrowth & MonetizationEstimation & Market Sizing
0
0
7 people solved
Sep 7, 2026
Uber logo
UberGoogleSnowflake

Also asked at Snowflake, Amazon, Palantir, Meta, Bloomberg

Medium
Software Engineer

Build a QuadTree From a Grid

Implement a compressed QuadTree for a square grid. You are given an n x n grid of values, where n is a power of two. The values are not limited to bin...

Coding & Algorithms
6
0
43 people solved
Waymo logo
Waymo
Medium
Data Scientist

Implement a Safe Average Function in Python

Write a Python function average(table) that returns the arithmetic mean of a list of numbers and returns 0 when the list is empty. Explain the functio...

Data Manipulation (SQL/Python)
18
0
174 people solved
Mar 14, 2026
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Netflix

Medium
Software Engineer

Measure a Shared Contiguous Array Block

Problem Return the greatest length of a contiguous block occurring in both nums 1 and nums 2. A subsequence with gaps does not qualify. `cpp class Sol...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
14 people solved
OpenAI logo
OpenAI
Hard
Software Engineer

Implement an in-memory SQL-like table

Problem Implement a simple in-memory database for one table. All values are strings. Each row is identified by a rowKey (string). Each row contains co...

Coding & AlgorithmsData Structure Design
76
0
1279 people solved
Dec 15, 2025
Otter.Ai logo
Otter.Ai
Medium
Software EngineerSenior+

Fewest Adjacent-GCD Operations to Turn Every Array Element into 1

You are given an array nums of positive integers. In one operation, you choose an index i with 0 <= i < len(nums) - 1 and replace either nums[i] or nu...

Coding & AlgorithmsMath & Number Theory
3
0
26 people solved
Aug 4, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Find the Lexicographically Maximum Suffix

Return the lexicographically greatest nonempty substring of a lowercase string with up to 400,000 characters. Respect standard prefix ordering without...

Coding & Algorithms
7
0
61 people solved
Aug 21, 2026
Microsoft logo
MicrosoftGoogleMeta

Also asked at Meta, Bloomberg, Aqr

Medium
Software Engineer

Maximize the Score of Bounded Forward Jumps

Problem Start at index 0 of nums and finish at its final index. Each jump advances between 1 and k positions without leaving the array. Your score inc...

Coding & AlgorithmsDynamic ProgrammingStacks & Queues
0
0
10 people solved
Geico logo
Geico
Medium
Software Engineer

Design a Real-Time EV Charging Station Reservation System for a City

Design a reservation system for the electric-vehicle charging stations of a city. Drivers see which chargers are available and reserve one in real tim...

System DesignSystem Design FundamentalsReal-Time Systems
0
0
3 people solved
Sep 20, 2026
Patreon logo
Patreon
Easy
Data Engineer

Design a Data Processing System for JSON User Records: Batch vs Streaming Input

Your team receives user records as JSON. Each record holds personal data such as a name, a mailing address and one or more payment methods. The round ...

System DesignETL & Data PipelinesBatch & Stream Processing
7
0
53 people solved
Mar 14, 2026
Sierra logo
Sierra
Medium
Product Manager

Demonstrating Hands-On AI Fluency in Your Everyday Product Management Work

The interviewer opens with a broad question: how do you use AI? Answer from your own experience as a product manager. `hint Show a few workflows in de...

Behavioral & LeadershipAI Product Management
1
0
17 people solved
May 18, 2026
Optiver logo
Optiver
Medium
Software Engineer

Optiver Beat The Odds: Five Rapid-Fire Probability Brainteasers (Dice, Cards, Coins, Pigeonhole)

You are taking a timed online quantitative assessment (in the style of Optiver's "Beat The Odds" test). It consists of rapid-fire probability question...

Software Engineering FundamentalsProbabilityPuzzles & Brainteasers
43
0
588 people solved
Dec 18, 2025
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Bloomberg, Amazon

Medium
Software Engineer

Fewest Insertions When Each Opening Requires a Consecutive Closing Pair

Problem A balanced string is empty,a concatenation of balanced strings,or "("+A+"))" for balanced A. Thus each opening parenthesis must be matched by ...

Coding & AlgorithmsGreedyStacks & Queues
0
0
10 people solved
Amazon logo
Amazon
Easy
Software EngineerIntern Locked

Compute the Minimum Number of Meeting Rooms

Compute the fewest rooms needed to host a set of half-open meeting intervals. The challenge focuses on concurrent-activity tracking, precise treatment...

Coding & Algorithms
5
0
97 people solved
Aug 1, 2026
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