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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
Backend EngineerSenior+ Locked

Explain a Difficult Technical Decision

Present a difficult technical decision through its competing options, constraints, evidence, stakeholders, decision rule, outcome, and the conditions ...

Behavioral & Leadership
3
0
46 people solved
Aug 10, 2026
OpenAI logo
OpenAI
Hard
Machine Learning Engineer

Design a regional surge pricing strategy

Scenario You operate a ride-hailing platform. You need to design a system that sets surge multipliers (dynamic pricing) for a given region. Task Desig...

System DesignML System Design
49
0
348 people solved
Dec 15, 2025
Meta logo
Meta
Medium
Software Engineer

Merge Two Lists of Non-Overlapping Intervals

You are given two lists of closed integer intervals, a and b. Each interval is represented as a pair [start, end] with start <= end, and it covers eve...

Coding & Algorithms
4
0
33 people solved
Mar 6, 2026
Zomato logo
Zomato
Medium
Product Manager

Multi-Restaurant Orders on Zomato: Go/No-Go Call and Launch Plan

Zomato is weighing whether customers should be able to order from more than one restaurant in a single order. Make the call, and then either design th...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
11 people solved
Jun 6, 2026
TikTok logo
TikTok
Medium
Data Scientist

Compute 7-Day Rolling Average of Unique Post Viewers

POST_VIEWS +---------+------------+---------+ | user_id | view_date | post_id | | 101 | 2023-08-01 | 10 | | 102 | 2023-08-01 | 11 |...

Data Manipulation (SQL/Python)
95
0
487 people solved
Jul 12, 2025
DoorDash logo
DoorDash
Medium
Product Manager

Rideshare Subscription: Finding and Ranking the Experiences That Hurt Members Most

You are the product manager for the paid membership program of a ride-hailing app. How would you find out which member experiences are the most negati...

Analytics & ExperimentationSegmentation & Cohort AnalysisCausal Inference
0
0
10 people solved
Feb 17, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Delete duplicate files via DFS

Question LeetCode 609. Find Duplicate File in System – Implement an algorithm (using DFS/backtracking) to delete files with duplicate content in a fil...

Coding & Algorithms
19
0
93 people solved
Aug 4, 2025
Circle logo
Circle
Medium
Software Engineer

Write PostgreSQL updates with date filters

Write PostgreSQL statements to: ( 1) update a flight's price and set updated_at correctly; ( 2) upsert a booking record with conflict handling; ( 3) s...

Data Manipulation (SQL/Python)
8
0
59 people solved
Jul 17, 2025
Meta logo
Meta
Medium
Data Scientist

How to Validate Friends' Content Engagement Hypothesis?

Validate Friends' Content Engagement Hypothesis A Meta product team wants to know whether content from a viewer's friends or connected authors drives ...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
113
0
303 people solved
Jul 12, 2025
TikTok logo
TikTok
Hard
Data Scientist

Design incrementality test for TikTok ads

Design an Incrementality Test to Prove TikTok Ads Drive Lift in Conversions You are an advertiser who wants to causally prove that TikTok ads increase...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
11
0
139 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Product Manager

Path-Planning Algorithm for a Wheeled Robot Crossing a Room Around Fixed Obstacles

Design an algorithm that gets a robot from a starting point A to a destination point B inside a room, and walk through it step by step. The setting: -...

Software Engineering FundamentalsGraphsGrids & Matrices
1
0
12 people solved
Nov 23, 2025
Asana logo
Asana
Medium
Product Manager

Product Sense: Designing At-Home Video Streaming for Older Adults

Design a streaming video product aimed at older adults. `hint Seniors are not one user Older adults range from confident streamers to people who have ...

Product Design & StrategyAccessibility & Inclusive DesignProduct Sense
0
0
8 people solved
Dec 7, 2025
Two Sigma logo
Two Sigma
Medium
Software Engineer

Maximize Capital by Completing at Most k Projects

A startup has an initial amount of capital w and is choosing which projects to take on before an important funding deadline. There are n candidate pro...

Coding & Algorithms
23
0
154 people solved
Aug 26, 2025
Capital One logo
Capital One
Medium
Data Scientist

Determine Revenue and Cost Components for Credit-Card Issuer

Determine Revenue and Cost Components for Credit-Card Issuer Credit-Card Issuer Unit Economics and Break-even Analysis Scenario A card issuer is consi...

Analytics & Experimentation
6
0
57 people solved
Aug 4, 2025
Digitalocean logo
Digitalocean
Medium
Software Engineer Locked

Clarify a Longest-Repeating-Character Replacement Problem

Clarify replacement and substring semantics, then analyze the conditional sliding-window criterion based on window size and maximum character frequenc...

Software Engineering FundamentalsTwo Pointers & Sliding Window
2
0
24 people solved
Sep 16, 2026
Medium
Data Scientist

Implement multiplication without using the multiplication operator

Implement int multiply(int a, int b) without using * or /. You may use +, −, bitwise operators, and shifts. Requirements: - Handle negatives, zero, an...

Coding & Algorithms
5
0
70 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Product Manager

Customer Obsession Story: Extra Effort That Changed a Customer's Outcome

Describe a time you did substantially more for a customer than your role or the agreed plan called for. What did you do, why was the extra effort wort...

Behavioral & LeadershipOwnership & Execution
3
0
35 people solved
Jun 27, 2024
Google logo
Google
Medium
Software Engineer Locked

Check pivot after removing one element

This question evaluates array-manipulation skills, cumulative-sum/prefix-sum reasoning, and robustness in handling negative values and duplicates, tes...

Coding & AlgorithmsArrays & Strings
10
1
196 people solved
Feb 12, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Find LCA in a N-ary tree via DFS

You are given the root of a rooted N-ary tree (each node can have zero or more children) and two distinct nodes p and q that belong to the tree. Desig...

Coding & AlgorithmsTreesBacktracking & Recursion
25
0
209 people solved
Dec 8, 2025
Stripe logo
Stripe
Medium
Product Manager

Product Sense: Building a Credit Card Program From Approval to Repayment

Design a credit card system. Approach it as a product problem: decide whose needs the design serves, which users you target and what problems they hav...

Product Design & StrategyProduct SenseGrowth & Monetization
1
0
10 people solved
Feb 4, 2026
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