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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
Flexport logo
Flexport
Hard
Software Engineer Locked

Measure Meeting Coverage and Required Rooms

Compute the union length of meeting intervals and the minimum number of rooms needed. Respect half-open boundaries, duplicate meetings, touching endpo...

Coding & Algorithms
2
0
34 people solved
Jun 28, 2026
Amazon logo
Amazon
Medium
Product Manager

Behavioral: Spotting a Team-Level Risk Early and Driving It to Resolution

You are interviewing for a product manager role at Amazon. Describe a situation where you noticed a problem before it caught up with your team, and wa...

Behavioral & LeadershipOwnership & Execution
1
0
9 people solved
Feb 12, 2026
Amazon logo
Amazon
Medium
Data Scientist

Assess Leadership Through Disagreement, Failure, and Risk Examples

Assess Leadership Through Disagreement, Failure, and Risk Examples Behavioral Leadership Deep-Dive (Data Scientist Onsite) Scenario A leadership-princ...

Behavioral & Leadership
47
0
215 people solved
Aug 4, 2025
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
Disney logo
Disney
Medium
Software Engineer

Demonstrate culture fit and collaboration

Behavioral & Leadership: Culture Fit, Ambiguity, Conflict, Feedback, and Alignment Context: You are interviewing for an onsite Software Engineer role....

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
14
0
113 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Data Scientist

Generate Synthetic Clickstream Data with Python Function

Scenario The analytics team needs to generate synthetic click-stream records to test a new reporting pipeline before real traffic arrives. Question Wr...

Coding & Algorithms
209
1
694 people solved
Aug 4, 2025
Samsung logo
Samsung
Medium
Product Manager

Smartwatch Health Tracking: Choosing the Condition, Sensors and Validation Plan

In a product manager interview at Samsung, you are asked to explain how you would go about building a health-monitoring feature for a smartwatch. Walk...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
6 people solved
Jul 17, 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
Fivetran logo
Fivetran
Medium
Product Manager

Explaining a Fivetran data connector end to end in a PM presentation

You are a product manager at Fivetran. Pick one of Fivetran's connectors and build a presentation that explains it. `hint Lead with the customer's pro...

Software Engineering FundamentalsPlatform & API ProductsCommunication & Stakeholders
0
0
11 people solved
Jun 1, 2025
Optiver logo
Optiver
Easy
Quantitative Researcher

Expected Waiting Time for a Bus on a 10-Minute Schedule (and With Random Delays)

A bus route serves your stop on a fixed schedule: a bus is scheduled to arrive exactly every 10 minutes, around the clock. You walk to the stop at a r...

Machine Learning
6
0
88 people solved
Jul 26, 2025
Google logo
Google
Medium
Data Scientist Locked

Estimate unbiased ad scores with many reviewers

Estimate each ad's latent quality, with uncertainty and a defensible ranking, from 10,000 ratings in which 100 reviewers each scored 100 of 1,000 ads ...

Statistics & Math
6
0
110 people solved
Oct 13, 2025
Snowflake logo
Snowflake
Hard
Software Engineer Locked

Design a Priority Task Executor with Duplicate Task IDs

Design an in-memory priority executor where duplicate occurrences may share a task ID but that ID can execute only once. The problem explores determin...

Software Engineering Fundamentals
6
0
51 people solved
Jun 9, 2026
Microsoft logo
Microsoft
Medium
Product Manager

Product Sense: Cut Register Wait Times for a Small Grocer

You own a small grocery store, and you notice that long lines are forming at the checkout. How would you bring them down? Walk through how you would w...

Product Design & StrategyOperations & Capacity
0
0
11 people solved
Apr 27, 2026
Walmart Labs logo
Walmart Labs
Easy
Software EngineerSenior+

Handle conflict and motivate engineering teams

You are interviewing for a Senior Software Engineer / Tech Lead role. The interviewer asks two related leadership questions: 1. Handling conflict D...

Behavioral & Leadership
7
0
84 people solved
Dec 9, 2025
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
Airbnb logo
Airbnb
Medium
Data Scientist

Influence Decisions Without Direct Authority: Strategies and Outcomes

Influence Decisions Without Direct Authority This behavioral prompt asks about influencing cross-functional decisions without formal authority in a da...

Behavioral & LeadershipLeadership & InfluenceCommunication & Stakeholders
19
0
160 people solved
Jul 12, 2025
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Design a distributed crossword solving service

This question evaluates distributed systems and large-scale backend architecture skills, including task decomposition, scheduling, dynamic load balanc...

System DesignJob Scheduling & WorkflowsFault Tolerance & Failover
28
0
272 people solved
Oct 17, 2025
Discord logo
Discord
Hard
Data Engineer

Design Video Call Analytics Tables

You are building analytics tables for Discord video calls. Video-call activity is recorded from both client-side and server-side logs. Design a data m...

System DesignDimensional ModelingSQL
34
0
237 people solved
Apr 3, 2026
TikTok logo
TikTok
Medium
Software Engineer

Find kth smallest in sorted 2D matrix

You are given an n x m matrix of integers where each row and each column is sorted in non-decreasing order. You are also given an integer k such that ...

Coding & Algorithms
4
0
74 people solved
Dec 8, 2025
Perplexity logo
Perplexity
Hard
Software Engineer

Implement resilient LLM provider pool

System Design Task: Resilient Multi‑Provider LLM Client Library Context You are designing a client library used by backend services to call external L...

ML System DesignLLM ApplicationsAPI Integration & HTTP Clients
16
0
264 people solved
Aug 13, 2025
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