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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
Gusto logo
Gusto
Medium
Data Scientist Locked

Define Product Health and Experiment Design

This question evaluates competency in product analytics and experimentation, covering metric framework design, trade-offs and guardrail selection for ...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
12
0
101 people solved
May 27, 2026
Datadog logo
Datadog
Medium
Product Manager

PM system design: message delivery, storage and scaling for a messaging service

Design the system behind a messaging platform. Explain how a message gets from sender to recipient, where conversations are stored, and how the design...

System DesignTechnical Tradeoffs for PMsReal-Time Systems
1
0
9 people solved
Jan 25, 2024
Meta logo
Meta
Hard
Software Engineer

Design a product notifications system

System Design: Push Notifications and In‑App Messaging Platform Context Design a notifications platform for a large consumer mobile app with millions ...

System Design
4
0
67 people solved
Aug 14, 2025
Amazon logo
Amazon
Medium
Software Engineer

Design 2D DP on a DAG

Design 2D DP on a DAG Given a directed acyclic graph G(V, E) with N nodes, M edges, a designated source s, and an integer L, design a 2D dynamic progr...

Coding & Algorithms
12
0
112 people solved
Jul 15, 2025
Robinhood logo
Robinhood
Medium
Product Manager

Explain Your Motivation for Building Products in Financial Technology

Explain to the interviewer why you want to work in financial technology. `hint Start from a real problem Think of a specific moment when moving, savin...

Behavioral & LeadershipMotivation & Fit
1
0
10 people solved
Feb 14, 2024
OneMain Financial logo
OneMain Financial
Medium
Data Scientist Locked

Choose evaluation metrics for imbalanced risk model

This question evaluates understanding of cost-sensitive decision making, probabilistic thresholding, evaluation metric selection under class imbalance...

Machine Learning
8
0
70 people solved
Oct 13, 2025
Walmart Labs logo
Walmart Labs
Medium
Product Manager

Sizing Airbnb's US Revenue Bottom-Up from Listings, Booked Nights and Fees

You are interviewing for a product manager role and are asked to estimate, with no access to data, how much revenue Airbnb earns in a year from its bu...

Product / Decision MakingEstimation & Market Sizing
0
0
9 people solved
Jan 5, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Forecast and Analyze DoorDash Menu Price Inflation Gap

Forecast and Analyze DoorDash Menu Price Inflation Gap DoorDash wants to understand and forecast the difference between on-platform menu prices and th...

Statistics & MathTime Series & ForecastingSampling & Estimation
13
0
131 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Google PM: estimating a user's sleep from smartphone sensor signals

You are a product manager at Google. How would you work out when a person is asleep using the data their cellphone collects? Walk through the phone da...

Machine LearningAI Product ManagementModel Evaluation
0
0
7 people solved
Jan 4, 2026
Meta logo
Meta
Medium
Software Engineer

Solve grid shortest path and robot cleaning

Question LeetCode 1091. Shortest Path in Binary Matrix; LeetCode 489. Robot Room Cleaner https://leetcode.com/problems/shortest-path-in-binary-matrix/...

Coding & Algorithms
6
0
76 people solved
Aug 4, 2025
Shopify logo
Shopify
Easy
Software Engineer

How would you improve AI-generated code?

During a pair-programming interview, you wrote the rover simulator code using an AI coding assistant. The code works for the basic examples, but the i...

Software Engineering FundamentalsAI-Assisted DevelopmentCode Quality & Maintainability
57
0
454 people solved
Jan 27, 2026
Pinterest logo
Pinterest
Medium
Data Scientist Locked

How would you evaluate a carousel launch?

This question evaluates a data scientist's skills in experimental design, product-metric specification, causal inference, and diagnostic analysis for ...

Analytics & ExperimentationLaunch EvaluationMetric Diagnostics
60
0
374 people solved
Mar 10, 2026
Shopify logo
Shopify
Medium
Product Manager

Shopify merchant churn: deciding which losses matter and which are acceptable

Suppose churn on Shopify is high. Is that acceptable? Take a position, then explain how you would decide whether it is a problem the company should wo...

Analytics & ExperimentationSegmentation & Cohort AnalysisBusiness Case Analysis
0
0
9 people solved
Nov 28, 2024
Meta logo
Meta
Medium
Data Scientist

Comparing two ad‑insertion strategies

Comparing Two Ad Insertion Methods You are designing an ad insertion system. In a short time bucket or session, there are n eligible content slots whe...

Analytics & Experimentation
15
0
47 people solved
Jul 12, 2025
Google logo
Google
Medium
Product Manager

Choose a Wearable Device Opportunity and Define Its First Version

Identify the best product to build in wearable technology. Decide what the device is, who would wear it and for what problem, why that opportunity bea...

Product Design & StrategyProduct SensePrioritization & Tradeoffs
0
0
8 people solved
Aug 27, 2025
Uber logo
Uber
Hard
Software Engineer

Maximize stock profit with one or two trades

You are given an array prices where prices[i] is the price of a given stock on day i (0-indexed). You want to maximize your profit by choosing when to...

Coding & AlgorithmsDynamic Programming
6
0
102 people solved
Nov 17, 2025
Bloomberg logo
Bloomberg
Easy
Software Engineer Locked

Solve meeting and tree problems

This question evaluates skills in interval manipulation and boolean-based merging, along with binary-tree traversal and side-view extraction for strin...

Coding & Algorithms
3
0
54 people solved
Apr 5, 2026
Amazon logo
Amazon
Medium
Product Manager

Amazon membership strategy: a lower-priced Prime tier's go/no-go, benefit mix and price

Amazon is weighing a cheaper membership option, called Prime Lite here, that would include only some of Prime's benefits for a fraction of the full me...

Product Design & StrategyGrowth & MonetizationProduct Strategy
0
0
5 people solved
Oct 9, 2025
Airtable logo
Airtable
Easy
Data Scientist Locked

Diagnose metric anomalies and evaluate new algorithm

This question evaluates competency in analytics-driven incident investigation, experiment design, metric instrumentation, and product-metric interpret...

Analytics & Experimentation
6
0
61 people solved
Oct 14, 2025
DoorDash logo
DoorDash
Easy
Software Engineer Locked

Evaluate a Four-Operator Expression

This question evaluates expression-evaluation skills such as operator precedence, integer arithmetic semantics (truncating division), and string parsi...

Coding & Algorithms
3
0
51 people solved
Jan 4, 2026
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