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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
Hard
Data Scientist

Prioritize six improvements for a favorite app

Case Prompt: Product Thinking, Modeling, and Experimentation Choose one consumer mobile app you personally use weekly. 1. Propose exactly six concrete...

Behavioral & LeadershipProduct Design & ImprovementPrioritization & Tradeoffs
6
0
125 people solved
Oct 13, 2025
Nextdoor logo
Nextdoor
Medium
Software Engineer Locked

Design a Neighborhood Newsfeed System

This question evaluates a candidate's ability to design a scalable, privacy-preserving neighborhood social feed system, testing competencies in distri...

System DesignSystem Design FundamentalsSearch & Feed Systems
7
0
142 people solved
May 31, 2026
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Clarify Friendship Rules and Money-Transfer Semantics Before Choosing an Algorithm

Clarify friendship and money-transfer requirements, separate graph reachability from accounting, and reason about a conditional implementation and inv...

Software Engineering FundamentalsGraphs
2
0
46 people solved
Sep 11, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Describe how you learn quickly in new domains

Interview-style behavioral question: "Tell me about a time you had to learn something very quickly in order to succeed in a project or role. How did y...

Behavioral & LeadershipSelf-Awareness & Growth
20
0
248 people solved
Dec 8, 2025
ByteDance logo
ByteDance
Medium
Data Engineer Locked

Design a Data Service for Downstream Consumers

Design a governed data service with stable APIs, serving projections, cursor and export semantics, freshness evidence, and secure schema evolution.

System Design
27
0
187 people solved
Aug 28, 2026
Apple logo
Apple
Medium
Software Engineer

Describe common RTL lint warnings and errors

You are writing RTL (e.g., Verilog/SystemVerilog) and run a lint tool on your code. The tool reports items such as: - "Treat as black box" - Combinati...

Software Engineering FundamentalsDebuggingProgramming Languages
10
0
187 people solved
Dec 8, 2025
Signzy logo
Signzy
Medium
Product Manager

Splitwise Home Screen Search: Trade-offs of a Leadership Feature Request

You are the product owner for Splitwise, the app that groups of friends, roommates and travel companions use to log shared expenses, see who owes whom...

Product Design & StrategyProduct Design & ImprovementPrioritization & Tradeoffs
0
0
6 people solved
Aug 17, 2026
DoorDash logo
DoorDash
Medium
Software EngineerSenior+

Implement round-robin load balancer

Implement a load balancer that distributes incoming requests across N backend servers in strict round-robin order. Requirements: ( 1) Support addServe...

Coding & AlgorithmsData Structure DesignConcurrency
29
0
415 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Answer common graph, grid, and array tasks

This set of problems evaluates algorithmic skills across arrays, graph theory, and grid/matrix traversal—covering sliding-window and contiguous-segmen...

Coding & AlgorithmsGraphsGrids & Matrices
28
0
254 people solved
Mar 1, 2026
Zillow logo
Zillow
Medium
Product Manager

Airbnb Marketplace Health: Picking One North-Star Measure for Guests and Hosts

If Airbnb could watch only one number to judge whether it is creating value, which metric should that be? Propose it and defend the choice. `hint Chec...

Analytics & ExperimentationMetrics & KPIs
1
0
7 people solved
Feb 24, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design an Online Chess Service from Launch to Scale

Design an online chess service that starts simple and evolves with measured traffic and availability needs. Work through matchmaking, server-trusted m...

System DesignMultiplayer Game SystemsDistributed Coordination
17
0
145 people solved
Jul 17, 2026
Roblox logo
Roblox
Medium
Data Scientist

Implement deduped CTR/RPM aggregator over event stream

Implement a Python function to compute per-day, per-campaign CTR and RPM from an event stream with possible out-of-order and duplicate click events. I...

Data Manipulation (SQL/Python)
6
0
68 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer Locked

Find Shortest Unique Prefixes

This question evaluates string-processing skills and understanding of data structures for prefix management (e.g., tries), along with algorithmic effi...

Coding & Algorithms
6
0
43 people solved
Jun 18, 2026
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Design a distributed rate limiter service

This question evaluates competency in distributed systems design, focusing on scalability, consistency, concurrency control, storage and sharding choi...

System Design
10
1
110 people solved
Feb 11, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Apply bitwise tricks for performance

For an integer-heavy inner loop, propose bit-level optimizations that reduce branches and memory traffic: e.g., population count usage, fast modulo by...

Coding & AlgorithmsBit Manipulation
34
0
255 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Product Manager

Quadrupling Uber's Grocery Delivery Adoption: Funnel Math and Growth Levers

You are a product manager at Uber. How would you grow adoption of Uber's grocery delivery offering fourfold? `hint Turn 4x into factors A fourfold jum...

Product Design & StrategyGrowth & MonetizationUser Behavior & Funnels
0
0
6 people solved
Jun 25, 2026
Attentive logo
Attentive
Medium
Software EngineerNew Grad

Design Robust Large-Input Processing

The string-reduction algorithm above is now part of a backend service. Each job reads a text object from S3-compatible storage, applies the transforma...

System DesignDebuggingFile & Media Storage
15
0
144 people solved
Apr 13, 2026
Microsoft logo
Microsoft
Hard
Software Engineer

Why Microsoft, and what you expect to find there that you found nowhere else

Why do you want to work at Microsoft? And what do you expect to find at Microsoft that you have not found anywhere else? These two questions opened a ...

Behavioral & LeadershipMotivation & Fit
1
0
8 people solved
Aug 5, 2026
Capital One logo
Capital One
Medium
Machine Learning Engineer Locked

Count ordered fragment pairs forming a password

This question evaluates proficiency with string manipulation, handling duplicate fragments, and combinatorial reasoning about ordered index pairs that...

Coding & AlgorithmsArrays & Strings
16
0
109 people solved
Jan 20, 2026
Perplexity logo
Perplexity
Medium
Product Manager

AI Product Teardown: Strengths, Trust Gaps and One Prioritized Improvement

Pick an AI-powered app and critique it: what it does well, where it falls short, and what you would change first. `hint Judge the failure cases With a...

Product Design & StrategyAI Product ManagementProduct Design & Improvement
0
0
10 people solved
Jul 31, 2026
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