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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
Capital One logo
Capital One
Medium
Software Engineer

Find the Top-Left Submatrix Matching a Grid Pattern With Letter Variables

You are given a matrix of integers and a pattern grid with p rows and q columns. Each pattern cell is either a number, which must equal the matrix val...

Coding & AlgorithmsGrids & Matrices
6
0
59 people solved
Aug 4, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Design a Review and Rating System for Food Delivery Menu Items

Design a review and rating system for a food-delivery platform, where customers review the individual menu items they received and every menu shows ea...

System DesignSystem Design FundamentalsAPI Design
18
0
115 people solved
Sep 7, 2026
xAI logo
xAI
Medium
Machine Learning EngineerNew Grad Locked

Explain Data Collection Choices and Their Impact on Downstream Model Performance

A machine learning screening question: explain how the data for a project on your resume was collected and processed, then discuss how data choices af...

Machine LearningML Data Pipelines & Feature StoresML Fundamentals
5
0
51 people solved
Sep 5, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Hiring-Manager Behavioral Round: Impact, Conflict, Cross-Functional Work, and Influencing Without Authority

This hiring-manager behavioral round evaluates a software engineer's leadership, collaboration, and influence competencies through structured STAR sto...

Behavioral & LeadershipProject Deep DiveLeadership & Influence
62
0
670 people solved
Jun 20, 2026
Waymo logo
Waymo
Medium
Software Engineer

Design a System for a Vehicle Fleet Collecting Map Data for Autonomous Driving

Design the system that runs a fleet of sensor-equipped vehicles whose job is to collect the data used to build and refresh maps for autonomous driving...

System DesignSystem Design FundamentalsData Ingestion & CDC
5
0
113 people solved
Apr 14, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+

Solve Two OA Coding Problems

The online assessment included two coding problems: 1. In-place character run compression - You are given an array of characters. - Compress con...

Coding & AlgorithmsGreedyArrays & Strings
67
0
453 people solved
Apr 5, 2026
Google logo
GoogleAndurilMicrosoft

Also asked at Microsoft, Meta, Bloomberg, Amazon, Apple, Uber, Databricks, TikTok, Airbnb, Applied Intuition

Medium
Software Engineer

Fewest Clear Cells From Corner to Corner

Problem In the square binary grid, travel from (0,0) to (n-1,n-1) using horizontal, vertical or diagonal steps to different neighboring cells. Every v...

Coding & AlgorithmsGrids & MatricesGraphs
0
0
14 people solved
eBay logo
eBay
Medium
Software Engineer Locked

Design a Shopping Search Bar with Autocomplete

Design a shopping search bar that serves fast autocomplete suggestions and filtered product results through distinct paths. The solution compares weig...

System Design
7
0
65 people solved
Aug 19, 2026
Google logo
Google
Hard
Software Engineer

Blind Maze Escape: Shortest Command Sequence That Exits From Every Start Cell

A robot is somewhere in a maze drawn on a rectangular grid, where # is a wall, . is an open cell and E is the exit. The robot understands four command...

Coding & AlgorithmsGraphsGrids & Matrices
11
1
131 people solved
Apr 22, 2026
Google logo
Google
Medium
Software Engineer Locked

Design a Bookshelf with Book CRUD and a Stable Bookmark

Design an object-oriented bookshelf with book CRUD, stable ordering, and explicit bookmark behavior. The solution separates immutable identity from po...

Software Engineering Fundamentals
15
0
132 people solved
Aug 30, 2026
Databricks logo
Databricks
Medium
Software EngineerSenior+ Locked

Optimal Commute: Nearest Transit Distance in a City Grid

This question evaluates a candidate's ability to apply multi-source breadth-first search to a grid-based shortest-path problem. It tests graph travers...

Coding & Algorithms
17
1
279 people solved
Jun 9, 2026
Scale AI logo
Scale AI
Easy
Software Engineer

Explain Your Strengths and Weaknesses to a Non-Technical Values Interviewer

This question comes from a values-focused behavioral round run by an interviewer with no technical background. The interviewer works through a script ...

Behavioral & LeadershipSelf-Awareness & Growth
1
0
19 people solved
Jul 9, 2026
Airbnb logo
Airbnb
Medium
Data Engineer Locked

Find Hosts Meeting Listing, Rating, and Review-Coverage Rules

Find qualifying hosts with SQL using listing counts, a supplied rating cutoff, and exact recent-review coverage across their listings.

Data Manipulation (SQL/Python)SQL
10
0
79 people solved
Sep 4, 2026
Rippling logo
Rippling
Easy
Software Engineer

Design a news aggregator system

Rippling Onsite — Two Parts This Software Engineer onsite has two parts: a system design and a short coding follow-up. Both are below. Treat them as o...

System DesignSearch & Feed SystemsRanking Models
244
0
1814 people solved
Dec 5, 2025
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Meta, Deloitte, TCS

Medium
Software Engineer

Find Managers with Five or More Direct Reports

Problem Report the name of every manager who has at least five employees directly referencing that manager’s id. Count direct reports across all depar...

Data Manipulation (SQL/Python)SQL
1
0
13 people solved
Databricks logo
Databricks
Hard
Software Engineer Locked

Implement an Alternating Tic-Tac-Toe Game

This question evaluates a candidate's ability to implement state management, alternating turn logic, input validation, board representation, game outc...

Coding & Algorithms
16
0
129 people solved
May 30, 2026
Datadog logo
Datadog
Medium
Product Manager

Positioning Cloud and On-Premises Deployment Options in an Enterprise Sale

How would you approach selling an on-premises deployment versus a cloud service to a customer, and how would your pitch differ between the two? `hint ...

Product Design & StrategyProduct StrategyTechnical Tradeoffs for PMs
1
0
11 people solved
Sep 27, 2026
Optiver logo
Optiver
Hard
Software EngineerIntern Locked

Design low-latency trading infrastructure

This question evaluates understanding of low-latency trading system architecture, networking and protocol trade-offs (TCP/IP vs UDP), time synchroniza...

System DesignTrading SystemsNetworking
202
0
2409 people solved
Dec 5, 2025
Wayfair logo
Wayfair
Medium
Applied Scientist Locked

Simulate and Compare Multi-Armed Bandit Strategies

Compare epsilon-greedy, UCB1, and Thompson sampling in a reproducible Bernoulli bandit simulation with reward, pseudo-regret, and repeated-run uncerta...

Machine LearningSequential & Adaptive TestingProbability
3
0
53 people solved
Sep 10, 2026
Datadog logo
Datadog
Medium
Product Manager

Datadog Deal Review: Weighing a Three-Year Commitment on a Newly Launched Product

You are a product manager at Datadog. A product the company has just launched is priced at \$2M per year, and a large customer wants to sign a three-y...

Product / Decision MakingBusiness Case AnalysisGrowth & Monetization
1
0
16 people solved
Oct 18, 2026
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