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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
Meta logo
Meta
Medium
Data Scientist

Write SQL to infer group-call demand

You are given only 1:1 call logs and a user table. Use SQL to estimate latent demand for a 'Group Call' feature by detecting 10-minute 'call loops' wh...

Data Manipulation (SQL/Python)
7
0
44 people solved
Oct 13, 2025
Spotify logo
Spotify
Medium
Product Manager

Shape, Test and Ship a Live Concert Experience Inside Spotify for Growth and Retention

You are a product manager at Spotify. The company wants more people to sign up and more existing listeners to keep coming back, and one of the leading...

Product Design & StrategyProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
6 people solved
Apr 15, 2025
Google logo
Google
Medium
Product Manager

Size the Worldwide Consumer Language-Learning Market for a Google Entry

Google is considering entering the language-learning market. Estimate the total addressable market (TAM) formed by people who want to learn a new lang...

Product / Decision MakingEstimation & Market Sizing
0
0
9 people solved
May 14, 2026
Roku logo
Roku
Medium
Data Scientist

Measure speaker impact without A/B testing

Your company launched an optional smart speaker on 2025-01-10. Adoption is voluntary; 6% of existing app users purchase within 60 days, and you cannot...

Analytics & ExperimentationCausal InferenceHypothesis Testing
10
0
98 people solved
Oct 13, 2025
Coinbase logo
Coinbase
Medium
Machine Learning Engineer

Write SQL to rank top products per category

You are given two tables: products - product_id (int, primary key) - category (string) order_items - order_id (int) - product_id (int) - quantity (int...

Coding & AlgorithmsSQL
13
1
144 people solved
Dec 4, 2025
Amazon logo
Amazon
Medium
Software EngineerIntern Locked

Maximize capacity with primary-backup pairing

This question evaluates combinatorial optimization and constrained matching skills, focusing on algorithm design, complexity analysis, and resource-al...

Coding & Algorithms
8
0
78 people solved
Jan 6, 2026
Amazon logo
Amazon
Medium
Data Scientist

Implement Python Function for Longest Unique Substring Length

Scenario Real-time text analytics service enforcing uniqueness constraints Question Implement a Python function returning the length of the longest su...

Coding & Algorithms
12
0
93 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Design a hotel valet product: guests, attendants, first version and success metrics

As a product manager, you are asked to create a valet offering for hotels. Explain who it serves, which problems it solves first, what the first versi...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
8 people solved
Mar 18, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer Locked

Validate whether brackets are properly nested

This question evaluates proficiency in sequence validation, paired-token matching, and the use of data structures to manage nested elements within str...

Coding & AlgorithmsStacks & Queues
15
0
117 people solved
Jan 6, 2026
Point72 logo
Point72
Medium
Machine Learning Engineer

Compute Gaussian Probability and Regression Coefficients

You are given two independent standard normal random variables, X and Y. 1. Compute P[X > 3Y]. 2. In ordinary linear regression with design matrix X i...

Machine Learning
14
0
101 people solved
Feb 25, 2026
BlackRock logo
BlackRock
Medium
Data Engineer

Solve two interval array problems

You are given two interval-based tasks from a technical screen for a data engineering role. 1. Merge overlapping intervals - Input: an array of int...

Coding & AlgorithmsIntervals & Scheduling
13
1
161 people solved
Feb 18, 2026
Disney logo
Disney
Medium
Product Manager

Product Sense Exercise: Prioritized Improvements for TED and Its Talk Library

You are asked to improve TED, the organization best known for its short talks that anyone can watch for free. Decide which part of TED and which audie...

Product Design & StrategyProduct Design & Improvement
0
0
6 people solved
Jan 7, 2025
Anrok logo
Anrok
Hard
Software Engineer

Design async batched key-value fetcher

Design an async, batched key-value fetcher with a 100 ms window Context You have a single-threaded, event-loop environment (e.g., JS/TS). A backend en...

System DesignData Structure DesignConcurrency
21
0
341 people solved
Sep 6, 2025
TikTok logo
TikTok
Medium
Product Manager

TikTok Digital Well-Being Strategy: Answering Worries About a Compulsive Feed

You are a product manager at TikTok, and users are raising concerns that the platform's recommendation algorithm is too addictive. How would you respo...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
0
0
3 people solved
Sep 1, 2025
Amazon logo
Amazon
Medium
Business Intelligence Engineer

Analyze Top Book Sales and Unique Customer Purchases

BOOK_TRANSACTION +---------------+------------+-------------+------+----------+ | MARKETPLACE_ID| TXN_DAY | CUSTOMER_ID | ASIN | QUANTITY | +------...

Data Manipulation (SQL/Python)
16
0
59 people solved
Jul 12, 2025
Meta logo
Meta
Medium
Software Engineer

Describe conflict resolution, prioritization, and collaboration

Describe conflict resolution, prioritization, and collaboration Behavioral Prompt: Conflict Resolution and Leadership (Software Engineer, Onsite) Inst...

Behavioral & Leadership
4
0
70 people solved
Jul 15, 2025
Citadel logo
Citadel
Medium
Data Scientist Locked

Match a string with wildcard pattern recursively

This question evaluates proficiency in string pattern matching, recursive problem decomposition, and algorithmic optimization including handling wildc...

Coding & Algorithms
5
0
74 people solved
Oct 9, 2025
Shopify logo
Shopify
Medium
Product Manager

Shopify PM: Choosing and Combining Channels to Collect Product Feedback

You are interviewing for a product manager role at Shopify. The interviewer wants to hear how you collect feedback on a product you are responsible fo...

Behavioral & LeadershipUser Research & Discovery
0
0
8 people solved
Aug 22, 2025
Meta logo
Meta
Hard
Data Scientist

Clarify scope and align to mission

Clarify and Align: New Google Maps Feature to Boost Group Page Engagement Context (Completed) Assume "Group pages" are shared spaces in Google Maps wh...

Behavioral & Leadership
8
0
60 people solved
Oct 13, 2025
Yelp logo
Yelp
Hard
Data Scientist

Design a News Feed with APIs

Personalized News Feed System Design (Push + Pull) Context You are designing a large-scale personalized news feed for a consumer application. The feed...

Machine Learning
4
0
79 people solved
Oct 13, 2025
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