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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
Oracle logo
Oracle
Medium
Software Engineer

Describe cross-team collaboration

Describe cross-team collaboration Behavioral & Leadership: Cross‑Team Collaboration (Onsite SWE) You are interviewing onsite for a Software Engineer r...

Behavioral & LeadershipConflict & Collaboration
12
0
123 people solved
Aug 7, 2025
LinkedIn logo
LinkedIn
Easy
Data Scientist

Compute article-type diversity per user and histogram

You track article views and article metadata. Tables article_views - user_id INT - article_id INT - view_date DATE articles - article_id INT (PK) - ar...

Data Manipulation (SQL/Python)SQL
12
0
92 people solved
Feb 1, 2026
Oracle logo
Oracle
Medium
Software Engineer

Return a valid course completion order

You are given an integer n representing n courses labeled 0..n-1 and a list of prerequisite pairs prerequisites, where each pair [a, b] means you must...

Coding & AlgorithmsGraphs
14
0
117 people solved
Jan 26, 2026
Stripe logo
Stripe
Easy
Data Scientist

How handle disagreement with your manager

How handle disagreement with your manager Behavioral Question You disagree with your manager’s decision on a project (e.g., priorities, methodology, t...

Behavioral & Leadership
10
0
99 people solved
Aug 2, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Rotate a Matrix In Place

This question evaluates proficiency in in-place matrix and array manipulation, understanding of spatial transformations, and consideration of space an...

Coding & Algorithms
6
0
78 people solved
Apr 4, 2026
Apple logo
Apple
Medium
Software Engineer

Implement a robust socket message reader

Implement Message Framing Readers for TCP Sockets Context You are given a TCP socket. Each call to recv(k) may return any number of bytes up to k; in ...

Coding & AlgorithmsNetworkingParsing & Interpreters
9
0
185 people solved
Sep 6, 2025
Google logo
Google
Hard
Machine Learning EngineerIntern Locked

Construct connected crop layout and safe paths

This question evaluates constructive grid design and graph-based pathfinding skills, specifically the ability to produce connected labeled regions tha...

Coding & AlgorithmsGrids & MatricesGraphs
10
1
191 people solved
Feb 3, 2026
MongoDB logo
MongoDB
Medium
Product Manager

Explaining Your Motivation to Join MongoDB as a Product Manager

You are interviewing for a Product Manager role at MongoDB. Explain why you want to work there. `hint Say something only MongoDB earns Choose a reason...

Behavioral & LeadershipMotivation & Fit
1
0
16 people solved
Dec 7, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Determine Whether a String Is a Valid Number

Determine whether an ASCII string is a valid signed integer or decimal with an optional signed exponent under a precise grammar. Reject whitespace, in...

Coding & Algorithms
7
0
55 people solved
Aug 1, 2026
Airbnb logo
Airbnb
Hard
Software Engineer

Design API for split-stay combinations

Question Design an HTTP API endpoint that, given a requested date range and a collection of Airbnb listings with their availability, returns all valid...

System DesignAPI Design
83
0
564 people solved
Sep 6, 2025
Rippling logo
Rippling
Medium
Software Engineer

Implement a RESTful Q&A service

You are asked to build a small REST service (in any language/framework you choose) that resembles a minimal Stack Overflow-style Q&A system. Design an...

Software Engineering FundamentalsAPI Design
48
0
558 people solved
Jan 16, 2026
Pinterest logo
Pinterest
Hard
Machine Learning EngineerSenior+ Locked

Design an unsafe content detection system

This question evaluates a candidate's competency in end-to-end machine learning system design for unsafe user-generated content detection, covering mu...

ML System DesignModel EvaluationComputer Vision
17
0
166 people solved
Jan 12, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Solve binary-tree reverse printing and LPS

You are given a binary tree node definition: - TreeNode { int val; TreeNode left; TreeNode right; } Answer the following two algorithmic questions. 1)...

Coding & AlgorithmsTreesDynamic Programming
18
0
202 people solved
Dec 24, 2025
Jane Street logo
Jane Street
Hard
Software Engineer

Reach a Target Using Each Number At Most Once

Reach a Target Using Each Number At Most Once You are given an array of integers nums and an integer target. Decide whether you can build an arithmeti...

Coding & AlgorithmsBacktracking & Recursion
35
0
339 people solved
Sep 14, 2022
DoorDash logo
DoorDash
Medium
Software Engineer

Design a multi-channel notification system

Design a notification system that receives alert events from other internal systems and notifies all subscribed users through multiple channels (e.g.,...

System DesignSystem Design FundamentalsMessaging & Event-Driven
9
0
157 people solved
Jan 14, 2026
Voleon logo
Voleon
Medium
Data Scientist

Explain P-Value Reporting and Bootstrap for Coefficient Estimation

Explain P-Value Reporting and Bootstrap for Coefficient Estimation Scenario Technical screen — statistical inference checks after regression. Question...

Statistics & MathHypothesis TestingSampling & Estimation
44
0
313 people solved
Aug 4, 2025
Instacart logo
Instacart
Easy
Data Scientist

Should you roll out if NSM decreases?

Scenario You ran an experiment. The north star metric (NSM) is profit per order. Observed results - Average order volume increased in treatment vs con...

Analytics & ExperimentationExperiment Analysis & ReadoutLaunch Evaluation
7
0
99 people solved
Feb 6, 2026
Microsoft logo
Microsoft
Hard
Data Scientist

Compare CNN/RNN/LSTM and implement K-means

Deep Learning Concepts and K-means Implementation (Onsite ML Interview) This is a two-part onsite round for a Data Scientist role: a conceptual deep-l...

Machine LearningML CodingComputer Vision
19
0
166 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Engineer

Define and analyze product metrics

Product Analytics Case: Short‑Form Video Feed Context: You are evaluating a short‑form video feed feature inside a large social app where users swipe ...

Analytics & Experimentation
14
1
96 people solved
Sep 6, 2025
Agoda logo
Agoda
Medium
Product Manager

Agoda email campaign: allocating a scarce discount pool shared with rival OTAs

You are a product manager at Agoda planning an email marketing campaign. The subscriber list holds 40 million people, and you also have 10 million uni...

Product / Decision MakingGrowth & MonetizationExperiment Design (A/B Testing)
1
0
10 people solved
Apr 10, 2026
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