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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
OpenAI logo
OpenAI
Easy
Machine Learning Engineer Locked

How would you build an image classifier with dirty data?

This question evaluates a candidate's ability to design end-to-end image classification systems and manage noisy image datasets, testing competencies ...

ML System DesignData Quality & Validation
60
0
582 people solved
Jan 6, 2026
Squarepoint logo
Squarepoint
Medium
Quantitative Trader Locked

Explain Option Greeks and Futures Pricing

This question evaluates understanding of derivatives and quantitative finance concepts—option Greeks (delta, gamma), PnL approximations, futures prici...

Software Engineering Fundamentals
6
0
59 people solved
May 3, 2026
Amazon logo
Amazon
Easy
Software EngineerIntern Locked

Solve array duplicates and two-type subarray

These problems evaluate proficiency with array manipulation, frequency and membership reasoning, and algorithmic analysis of time and space complexity...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
13
0
123 people solved
Feb 11, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Discuss activities, role, and project deep dive

Discuss activities, role, and project deep dive Behavioral Onsite Prompt — Role Walkthrough, Project Deep Dive, and Professional Growth Context: You a...

Behavioral & LeadershipProject Deep DiveCommunication & Stakeholders
8
0
137 people solved
Aug 7, 2025
Meta logo
Meta
Medium
Software EngineerIntern

Solve tree diameter and grid path problems

You are interviewing for a software engineer / ML intern role and are given the following algorithmic problems. --- Question 1: Longest Path in a Tree...

Coding & Algorithms
8
0
114 people solved
Nov 18, 2025
Capital One logo
Capital One
Hard
Data Scientist

Present and defend your data challenge end-to-end

10–12 Minute Interviewer-Driven Walkthrough: Recent Data Challenge Provide a concise, structured walkthrough of a real project you led end-to-end. Ass...

Machine Learning
16
0
114 people solved
Oct 13, 2025
Apple logo
Apple
Medium
Software Engineer

Discuss feedback, AI work, learning, and motivation

Behavioral & Leadership Interview — Software Engineer (Onsite) Instructions Answer concisely with specific examples, your actions, and measurable outc...

Behavioral & Leadership
16
0
138 people solved
Sep 6, 2025
Dropbox logo
Dropbox
Medium
Product Manager

Design a Dropbox feature for booking meetings and scope its first release

Dropbox wants to add a calendar scheduling tool. Design it: who it is for, which problems it solves, what the first version does, how it fits with the...

Product Design & StrategyProduct SenseMarket & Competitive Analysis
0
0
8 people solved
Jun 2, 2026
Google logo
Google
Medium
Software EngineerNew Grad

Design a Dormitory Room-Assignment System (OOD)

You are asked to design the object-oriented model for a dormitory room-assignment system. You are given a set of students and a set of rooms. Each roo...

Software Engineering Fundamentals
6
0
66 people solved
Feb 22, 2026
Google logo
Google
Hard
Software Engineer

Diagnose distributed database inconsistency

Distributed Database Incident: Inconsistent Replicas You are on-call for a distributed database that serves production traffic. Dashboards show data i...

System DesignDebuggingConsensus & Replication
21
0
168 people solved
Sep 6, 2025
OpenAI logo
OpenAI
Medium
Software Engineer

Implement in-memory KV store with serialization

Implement an in-memory key-value store in Python that supports setting and retrieving values and can serialize and deserialize the entire store. Defin...

Coding & AlgorithmsData Structure Design
61
0
550 people solved
Aug 8, 2025
Amazon logo
Amazon
Easy
Software Engineer

Discuss AI Use, Deadlines, Ambiguity, and Feedback

Discuss AI Use, Deadlines, Ambiguity, and Feedback Prepare evidence-based responses to the following behavioral themes. Use distinct examples where po...

Behavioral & LeadershipAI-Assisted DevelopmentAmbiguity & Decision Making
6
0
41 people solved
Mar 19, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Design a GPT chat UI with snapshots and sharing

System Design: End-to-End Web App for Interacting with a GPT-like Model Context You are designing a multi-tenant, browser-based SaaS application that ...

System DesignReal-Time SystemsLLM Applications
22
0
264 people solved
Sep 6, 2025
Reddit logo
Reddit
Hard
Data Scientist

Communicate and de-risk a non-experimental launch

Decision-to-Launch Plan After a Synthetic Control Result Context You are a data scientist who used a Synthetic Control method to estimate the causal i...

Behavioral & LeadershipCausal InferenceCI/CD & Deployment
9
0
139 people solved
Oct 13, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Design an in-memory filesystem and circular queue

Part A — Design an in-memory hierarchical file system. Requirements: - Support operations: ls(path), mkdir(path), createFile(path, content), appendToF...

Coding & AlgorithmsData Structure DesignStacks & Queues
13
0
177 people solved
Aug 11, 2025
Goldman Sachs logo
Goldman Sachs
Easy
Data ScientistIntern Locked

Compute the Arc Length of a Curve

Derive the exact arc length of y = (2/3)x^(3/2) + 1 on [0, 1], showing the derivative, integral setup, and evaluation.

Statistics & Math
4
1
56 people solved
Sep 2, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Count the Steps at Which Set Bits Form an Exact Prefix of Ones

A binary string of length n has positions numbered 1 to n, and every bit starts as 0. The process runs for n steps: at step i (counting from 1), the b...

Coding & AlgorithmsArrays & Strings
0
0
14 people solved
Feb 27, 2026
Jerry.Ai logo
Jerry.Ai
Medium
Software Engineer

Determine a one-step string transformation

Given two lowercase strings source and target, determine whether target can be obtained from source using at most one of the following operations, and...

Coding & Algorithms
2
0
46 people solved
Jan 1, 2026
Antra logo
Antra
Medium
Software Engineer Locked

Longest Substring Without Repeating Characters

This question tests a software engineer's ability to apply sliding window techniques and string manipulation to optimize character uniqueness tracking...

Coding & Algorithms
4
0
30 people solved
Jun 20, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Software Engineer

Skip-Level Behavioral: Commitment, Working With PMs and EMs, and Following Up on SLAs

A skip-level manager ran this round. The interviewer opened by describing the mindset the team expects: a commitment to getting things done. Not knowi...

Behavioral & LeadershipProject Deep DiveOwnership & Execution
1
0
17 people solved
Oct 5, 2026
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