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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
DoorDash logo
DoorDash
Medium
Data Scientist

Explain motivation and align expectations for L4 role

Behavioral Prompt: L4 IC Data Scientist — Motivation, Plan, and Expectations Context You are interviewing onsite in a Behavioral & Leadership round fo...

Behavioral & LeadershipMotivation & FitRoadmapping & Planning
15
0
141 people solved
Oct 13, 2025
Apple logo
Apple
Hard
Data Scientist

Managing a Data Science Team: Priorities, Communication and Engineering Partnership

This data science role includes managing a team, and several interview conversations probe how you lead: how you manage the team, how you set prioriti...

Behavioral & LeadershipMentoring & Team GrowthCommunication & Stakeholders
0
0
3 people solved
May 2, 2026
Google logo
Google
Medium
Product Manager

Estimation Case: Packing Soccer Balls Onto a Soccer Pitch

Estimate how many soccer balls can fit on a soccer field. Walk the interviewer through how you frame the problem, the assumptions you make, your arith...

Product / Decision MakingEstimation & Market Sizing
0
0
12 people solved
May 1, 2026
Coinbase logo
Coinbase
Medium
Data Scientist Locked

Increment Digit Array

This question evaluates a candidate's competency in array manipulation and elementary arithmetic on digit sequences, including carry propagation and h...

Coding & Algorithms
4
0
66 people solved
Jan 21, 2026
Snapchat logo
Snapchat
Medium
Software Engineer

Handle cards, islands, Trie, median

Question LeetCode 914. X of a Kind in a Deck of Cards LeetCode 694. Number of Distinct Islands LeetCode 208. Implement Trie (Prefix Tree) LeetCode 295...

Coding & Algorithms
16
0
65 people solved
Jul 29, 2025
Meta logo
Meta
Medium
Data Scientist

Describe Handling Unexpected Feedback and Actions Taken

Describe Handling Unexpected Feedback and Actions Taken Behavioral: Resilience After Unexpected Negative Feedback or Rejection Context You are in an o...

Behavioral & LeadershipFailure & Learning
27
0
108 people solved
Aug 4, 2025
Amazon logo
Amazon
Hard
Software Engineer Locked

Find Longest Activatable Server Streak

This question evaluates array algorithm skills, specifically recognition of sliding-window or two-pointer techniques and reasoning about time and spac...

Coding & Algorithms
5
0
61 people solved
Apr 15, 2026
DoorDash logo
DoorDash
Easy
Software Engineer Locked

Design a Real-Time Monitoring System

This question evaluates a candidate's system design and distributed-systems competencies, focusing on scalable time-series ingestion, storage, query, ...

System Design
6
0
74 people solved
Jan 4, 2026
Uber logo
Uber
Medium
Software EngineerIntern

Minimizing a Convex Quadratic: Closed Form and Iterative Optimization Algorithms

The machine learning round centered on a single question: optimizing a quadratic function, with the discussion built around optimization algorithms an...

Machine LearningML Fundamentals
1
0
19 people solved
Dec 6, 2025
Salesforce logo
Salesforce
Hard
Software Engineer Locked

Design an async job system and cache layer

This question evaluates system design competencies including asynchronous job orchestration, reliable background processing (state transitions, retrie...

System DesignSystem Design FundamentalsCaching
17
0
173 people solved
Jan 22, 2026
LinkedIn logo
LinkedIn
Medium
Data Scientist

Derive expectation for two consecutive heads

Waiting Time Until First HH (Two Consecutive Heads) Setup Let T be the number of coin flips required until the pattern HH (two consecutive heads) appe...

Statistics & MathProbability
9
0
115 people solved
Oct 13, 2025
Capital One logo
Capital One
Medium
Software Engineer Locked

Remove nodes with a given value

This question evaluates proficiency in singly linked list manipulation, specifically pointer handling and in-place node removal, and falls under the C...

Coding & AlgorithmsLinked Lists
21
0
204 people solved
Feb 12, 2026
Citadel logo
Citadel
Medium
Software EngineerIntern

Design an Authenticated Online Shopping Service

Prompt Design an online shopping service centered on user authentication and authorization. Cover signup, login, session or token handling, product br...

System Design
9
0
75 people solved
May 10, 2025
Confluent logo
Confluent
Medium
Software EngineerSenior+

Search Words and Phrases in a Large Line-Oriented File

Search Words and Phrases in a Large Line-Oriented File A text file contains one sentence per line and may be much larger than memory. Design an API th...

Software Engineering Fundamentals
12
0
169 people solved
Jan 1, 2026
Stripe logo
Stripe
Medium
Product Manager

Airline Consortium Brief: Make Flying Feel Enjoyable on a One-Million-Dollar Budget

A consortium of airlines has hired you and handed you a budget of \$1 million. Your brief is to change the common perception that flying is not an enj...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
9 people solved
Aug 11, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Propose Your Own Startup Idea and the Metrics That Prove It Is Working

Suppose you had to start a company of your own. Describe the startup you would build, and explain how you would measure whether it is succeeding. `hin...

Product Design & StrategyProduct SenseMetrics & KPIs
1
0
10 people solved
Oct 27, 2025
Uber logo
Uber
Medium
Data Scientist

Clean, split, merge, and aggregate with pandas

Given two CSVs, use pandas to clean, split strings, merge, and aggregate. drivers.csv driver_id,name,signup_city D1,Jane Doe,SF D2,Mark S,NYC D3,A...

Data Manipulation (SQL/Python)
2
0
27 people solved
Oct 13, 2025
Oracle logo
Oracle
Hard
Software Engineer

Explain your project system design

Explain your project system design System Design Walkthrough: Project You Owned Context: In an onsite system design interview for a Software Engineer ...

System DesignSystem Design FundamentalsConsistency & Availability
7
0
105 people solved
Aug 7, 2025
Capital One logo
Capital One
Medium
Product Manager

Running a feature A/B test end to end: metrics, randomization, sizing and the launch call

You are a product manager about to launch a new feature. Explain how you would A/B test it, from setting up the experiment to deciding whether to ship...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
0
0
6 people solved
Jun 6, 2025
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
10
0
140 people solved
Sep 6, 2025
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