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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 EngineerSenior+

Behavioral: Building a Team or Leading It Through a Re-org

In a behavioral round for a senior or management-level engineering role, you are asked to describe a time you helped build a team or helped a team thr...

Behavioral & LeadershipMentoring & Team GrowthLeadership & Influence
0
0
11 people solved
Jan 1, 2026
Figma logo
Figma
Medium
Data Scientist Locked

Present a Relevant Data Science Project to a Hiring Manager

Prepare a hiring-manager walkthrough of a data science project from problem framing through validation and stakeholder decision. Show your personal ow...

Behavioral & Leadership
4
0
46 people solved
Jul 14, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Hard
Data Scientist Locked

Compute answers to probability and counting puzzles

Compute answers to probability and counting puzzles evaluates statistical assumptions, formulas, estimation strategy, uncertainty, edge cases, and int...

Statistics & MathPuzzles & BrainteasersProbability
8
0
150 people solved
Aug 4, 2025
Apple logo
Apple
Hard
Software Engineer

ASIC Verification Fundamentals Across SystemVerilog UVM CDC and Architecture

Work through this ASIC design-verification interview set. Use small SystemVerilog examples where they make an answer clearer, and distinguish simulati...

Software Engineering Fundamentals
7
0
125 people solved
Jan 5, 2025
Capital One logo
Capital One
Easy
Data ScientistSenior+ Locked

Compute Optimal Die Re-roll Strategy

This question evaluates a candidate's understanding of optimal stopping, expected-value computation, and decision-making under uncertainty in probabil...

Statistics & MathPuzzles & Brainteasers
12
0
116 people solved
Feb 28, 2026
Disney logo
Disney
Hard
Data Scientist

Diagnose and decide on watch-time drop

Hulu iOS Homepage Ranking Model Rollout: Causal Read and Decision Within 48 Hours Context - On 2025-08-25, a new homepage ranking model was shipped to...

Analytics & Experimentation
7
0
57 people solved
Oct 13, 2025
Nuro logo
Nuro
Medium
Software Engineer Locked

Map Weighted Random Draws to Indices

Map deterministic draws to weighted indices using cumulative ranges. Support large weights and many queries while preserving draw order and respecting...

Coding & Algorithms
4
0
40 people solved
May 26, 2026
Citadel logo
Citadel
Easy
Software Engineer Locked

Implement an in-memory order book API

This question evaluates understanding of in-memory data structures and API design for maintaining ordered collections with FIFO semantics, correctness...

Coding & AlgorithmsData Structure DesignTrading Systems
9
0
184 people solved
Jan 1, 2026
Oracle logo
Oracle
Medium
Software Engineer

Find users with at least one valid session

You are given: - A list of log entries logs, where each entry is a string in the format: ` "userId action timestamp" ` - userId is a non-empty...

Coding & Algorithms
10
0
100 people solved
Nov 11, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Vertical Order Traversal of a Binary Tree

This question evaluates a candidate's ability to combine tree traversal with coordinate-based grouping and tie-breaking logic. It tests understanding ...

Coding & Algorithms
7
2
85 people solved
Jun 30, 2026
Credit Genie logo
Credit Genie
Medium
Software Engineer

Implement FastAPI CRUD endpoints from skeletons

Implement Update and Delete Endpoints in a FastAPI CRUD Service Context You are given a FastAPI project that already has working Create and Read endpo...

Software Engineering FundamentalsAPI DesignTesting & Quality
11
0
143 people solved
Sep 6, 2025
PayPal logo
PayPal
Medium
Software Engineer

Explain HashMap internals and collisions

Explain HashMap internals and collisions In Java, describe the underlying data structures used by HashMap (e.g., array of buckets, linked lists vs tre...

Coding & AlgorithmsProgramming Languages
9
0
99 people solved
Aug 7, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Merge multiple sorted arrays using min-heap

Problem You are given k sorted arrays of integers: - arrays[0], arrays[1], ..., arrays[k-1] - Each arrays[i] is sorted in non-decreasing order. - The ...

Coding & Algorithms
7
0
83 people solved
Oct 28, 2025
OpenAI logo
OpenAI
Hard
Machine Learning Engineer Locked

Select high-quality math documents from crawls

This ML System Design question evaluates the ability to design scalable, production-grade pipelines for extracting and quality-scoring mathematical co...

ML System DesignAnnotation & Label QualityData Ingestion & CDC
20
0
197 people solved
Dec 15, 2025
Anthropic logo
Anthropic
Medium
Software Engineer

Describe handling AI safety concerns

AI Safety Risk: Identify, Assess, Mitigate, and Monitor Context Behavioral & leadership onsite prompt for a Software Engineer working on AI features. ...

Behavioral & Leadership
10
0
109 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Medium
Software EngineerSenior+

Compute dasher pay from deliveries

Given a list of delivery events for dashers (e.g., dasherId, pickupTime, dropoffTime, distance, tip, and optional bonuses) and a set of pay rules (e.g...

Data Manipulation (SQL/Python)
3
0
51 people solved
Sep 6, 2025
Capital One logo
Capital One
Medium
Product Manager

Go-to-Market Plan for a Capital One Checking Account Aimed at College Students

You are a product manager at Capital One, and the bank wants to introduce a checking account aimed at college students. Walk through how you would lau...

Product Design & StrategyRequirements & Launch ExecutionGrowth & Monetization
2
0
15 people solved
Aug 10, 2025
Micro1 logo
Micro1
Medium
Software EngineerNew Grad Locked

Compare Promise.all, Promise.any, and Promise.allSettled

Compare JavaScript's Promise.all, Promise.any, and Promise.allSettled across fulfillment, rejection, result shape, input ordering, and empty iterables...

Software Engineering Fundamentals
5
0
46 people solved
Aug 9, 2026
Figureai logo
Figureai
Medium
Data EngineerSenior+ Locked

Diagnose the Leading Cause of Slow or Failed Charging

Analyze a robot-charging reliability case by defining failure and exposure, ranking root causes, and investigating slow sessions with imperfect teleme...

Analytics & Experimentation
2
0
32 people solved
May 20, 2026
Citadel logo
Citadel
Medium
Data Scientist

Compute variance of trading profits

Compute variance of trading profits Symmetric Random Walk Trading Strategy: Profit Variance and Expectation Setup - Let S_t be a simple symmetric rand...

Statistics & Math
5
0
110 people solved
Aug 4, 2025
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