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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
570
Updated
10.05.2026
11.9k Questions 570 Companies10.05.2026
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
Bitkernel logo
Bitkernel
Medium
Software Engineer

Classify concurrency anomaly between two transactions

Two transactions T1 and T2 run concurrently and access the same data item A. Their operations (in order of time) are: 1. T1 reads A = 100. 2. T2 reads...

Software Engineering Fundamentals
2
0
46 people solved
Oct 24, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Find Minimum Time Across a Grid

This question evaluates algorithm design and problem-solving skills related to grid-based reachability with time-dependent constraints, assessing the ...

Coding & Algorithms
5
0
50 people solved
Mar 18, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Find when failures started in log stream

This question evaluates understanding of monotonic sequences and search algorithms (such as binary search), along with algorithmic reasoning about cor...

Coding & AlgorithmsBinary Search
5
0
96 people solved
Jan 22, 2026
Uber logo
Uber
Medium
Software Engineer Locked

Solve Several Algorithm Problems

This collection evaluates proficiency in string processing (longest palindromic substrings), graph connectivity and union‑find style concepts for 2D p...

Coding & Algorithms
5
0
72 people solved
Mar 17, 2026
Meta logo
Meta
Medium
Software Engineer

Solve grid path and top‑k frequency

Part A — Grid Reachability with Obstacles: Given an m×n matrix of 0s and 1s where 0 indicates a passable cell and 1 indicates a blocked cell, starting...

Coding & Algorithms
7
0
52 people solved
Sep 6, 2025
Zipline logo
Zipline
Medium
Software Engineer

Implement a Maximum-Tracking Stack

Design a stack-like data structure that supports the following operations efficiently: - push(x): Push integer x onto the stack. - pop(): Remove and r...

Coding & Algorithms
2
0
31 people solved
Jan 15, 2026
EY logo
EY
Medium
Data Scientist

Demonstrate domain impact with metrics

Behavioral Prompt: Impactful Initiative in Financial Services (Data Science) Context You will describe a high-impact initiative you delivered in banki...

Behavioral & Leadership
5
0
41 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Data Scientist

Audit flight data quality from metadata

You’re given an airline on‑time dataset and a one‑page “Metadata” slide that claims: flight_date (string, local time), dep_time/arr_time (HHMM local),...

Data Manipulation (SQL/Python)
2
0
23 people solved
Oct 13, 2025
Thumbtack logo
Thumbtack
Medium
Data Scientist

Choose clustering vs regression; explain KNN

When would you use clustering vs. regression on a business problem with partially labeled outcomes? Specify the decision criteria (label availability,...

Machine LearningUnsupervised LearningCommunication & Stakeholders
7
0
91 people solved
Oct 13, 2025
Circle logo
Circle
Medium
Software Engineer

Describe pair-programming challenge under time pressure

Describe pair-programming challenge under time pressure Behavioral: Pair Programming Under Ambiguity and Unfamiliar Tools Context: For a Software Engi...

Behavioral & LeadershipAmbiguity & Decision MakingConflict & Collaboration
6
0
85 people solved
Jul 17, 2025
Meta logo
Meta
Medium
Software Engineer

Design weighted random index picker

Design and implement a data structure that, given an array of positive integer weights w[0..n−1], supports pick() that returns index i with probabilit...

Coding & Algorithms
7
0
63 people solved
Jul 29, 2025
DoorDash logo
DoorDash
Medium
Software Engineer

Compute nearest dashmart and busiest assignments

Compute nearest dashmart and busiest assignments You are given an m x n grid of characters where 'D' marks a dashmart, 'X' marks an impassable cell, a...

Coding & AlgorithmsGrids & Matrices
8
0
91 people solved
Jul 17, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Behavioral: Learn and Be Curious

This behavioral question evaluates a software engineer's capacity for self-directed learning and intellectual curiosity under real project constraints...

Behavioral & Leadership
22
1
313 people solved
Jun 13, 2026
Arm logo
Arm
Medium
Backend EngineerIntern

Describe leadership, AI perspective, and challenges

In a prerecorded video interview for an implementation-related engineering intern role, you may be asked several behavioral questions: 1. Describe a t...

Behavioral & Leadership
11
0
80 people solved
Mar 13, 2026
Meta logo
Meta
Hard
Software Engineer

Design place-of-interest ML system

Design place-of-interest ML system Design a POI (Places of Interest) Recommendation System Context Design a global POI recommender for a mobile maps/f...

ML System DesignRecommendation SystemsPersonalization
15
1
138 people solved
Jul 17, 2025
Asana logo
Asana
Medium
Software Engineer

Design a Twitter-like service

Design a simplified Twitter-like system that supports: - Users can post short messages (tweets). - Users can follow/unfollow other users. - Home timel...

System DesignSearch & Feed SystemsSystem Design Fundamentals
22
0
217 people solved
Jan 7, 2026
Meta logo
Meta
Medium
Data Scientist

Write SQL for shop visibility and activity metric

Assume 'today' is 2025-09-01. Schema and tiny samples: 1) shops(shop_id INT, created_at DATE) Sample: shop_id | created_at 1 | 2025-08-25 2 | 2025...

Data Manipulation (SQL/Python)
1
0
13 people solved
Oct 13, 2025
Snapchat logo
Snapchat
Medium
Technical Program Manager

Diagnose SLA drops and prioritize fixes

You are a Technical Program Manager responsible for an ML platform or service. Explain how you would perform root-cause analysis if a service's SLA su...

Product / Decision Making
7
0
63 people solved
Jun 12, 2025
Uber logo
Uber
Hard
Software Engineer

Maximize stock profit with one or two trades

You are given an array prices where prices[i] is the price of a given stock on day i (0-indexed). You want to maximize your profit by choosing when to...

Coding & AlgorithmsDynamic Programming
5
0
92 people solved
Nov 17, 2025
Coinbase logo
Coinbase
Medium
Data Scientist

Estimate Super Bowl QR Code Scan Rate Using Historical Data

Estimate Super Bowl QR Code Scan Rate Using Historical Data Estimating QR Scan and Sign-up Conversion for a Super Bowl TV Ad Scenario A Super Bowl TV ...

Analytics & Experimentation
93
0
263 people solved
Aug 4, 2025
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