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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
Walmart Labs logo
Walmart Labs
Medium
Software Engineer Locked

Design Spring Boot for high availability and background work

This question evaluates a candidate's competency in designing highly available, load-balanced Spring Boot applications and architecting resilient back...

System DesignReliability & SRESystem Design Fundamentals
13
0
110 people solved
Jan 6, 2026
Meta logo
Meta
Medium
Product Manager

Long-Range Product Strategy for Facebook Search: Vision, Bets, Roadmap and Metrics

Imagine you are the product leader for search on Facebook, responsible for every market where Facebook operates. Describe how you would put together a...

Product Design & StrategyProduct StrategyRoadmapping & Planning
0
0
6 people solved
Jul 16, 2024
Deliveroo logo
Deliveroo
Medium
Product Manager

Deliveroo: choose a user segment, diagnose its pain points and propose product fixes

You are interviewing for a product manager role at Deliveroo, the on-demand app that lets people order meals from local restaurants and has riders bri...

Product Design & StrategyProduct Design & ImprovementExperiment Design (A/B Testing)
0
0
6 people solved
Apr 1, 2025
Amazon logo
Amazon
Medium
Software Engineer

Compute fruit spoilage time in a grid

Given an m×n grid representing kitchen cells: 0 for empty, 1 for fresh fruit, and 2 for spoiled fruit. Each minute, any fresh fruit adjacent (up, down...

Coding & Algorithms
3
0
66 people solved
Jul 31, 2025
Meta logo
Meta
Medium
Product Analyst Locked

How to evaluate emoji reactions?

This question evaluates product analytics and experimentation competencies for a Product Analyst role in the Analytics & Experimentation domain, focus...

Analytics & Experimentation
3
0
47 people solved
Oct 20, 2025
Meta logo
Meta
Medium
Product Manager

Designing a Discovery Surface for Fast-Rising Photos and the Signals That Detect Them

Design a feature that shows people trending photos: a place in the app where they can see the photos that are catching on right now. Explain how you w...

Product Design & StrategyProduct SenseTrust & Safety
1
0
7 people solved
Sep 4, 2024
Google logo
Google
Medium
Product Manager

Google's Role in Easing the Early-2020 PPE Shortage: A Product Strategy Case

It is March 2020. COVID-19 is spreading quickly, and personal protective equipment (PPE) such as masks, gloves and gowns is in short supply for the pe...

Product Design & StrategyProduct StrategyPrioritization & Tradeoffs
1
0
10 people solved
Jul 14, 2025
Meta logo
Meta
Medium
Product Manager

Design a Clubhouse-Style Live Audio Rooms Product for Facebook

You are a product manager at Facebook and have been asked to build a live audio product along the lines of Clubhouse: people join real-time voice room...

Product Design & StrategyProduct SenseMetrics & KPIs
0
0
8 people solved
Oct 15, 2025
eBay logo
eBay
Medium
Software Engineer Locked

Implement list and grid transformation tasks

This question evaluates skills in character classification, array and list manipulation, greedy repartitioning logic, and iterative grid simulation wi...

Coding & Algorithms
6
0
77 people solved
Jan 6, 2026
Meta logo
Meta
Medium
Product Manager

Spotify Podcasts Metrics and Responding When Listening Shifts Away From Music

You are a product manager for podcasts at Spotify, which offers music and podcasts in the same app. Clarifying Questions - How should engagement be de...

Analytics & ExperimentationMetrics & KPIsMetric Diagnostics
0
0
4 people solved
Oct 1, 2025
Salesforce logo
Salesforce
Hard
Software Engineer

Design an end-to-end recommendation system

Design an end-to-end recommendation system System Design Prompt: End-to-End Movie Recommendation System You are tasked with designing an end-to-end mo...

ML System Design
16
0
114 people solved
Aug 1, 2025
Tencent logo
Tencent
Hard
Data Scientist

Design email to avoid Promotions without online tests

Offline Design of a Transactional Email to Minimize Promotions/Spam Classification Context You must finalize the design of a single in‑game transactio...

Machine Learning
3
0
69 people solved
Oct 13, 2025
DRW logo
DRW
Easy
Data EngineerIntern Locked

Delete the Fewest Characters to Avoid Triple Repeats

Delete the fewest lowercase characters needed to eliminate every run of three identical consecutive letters while preserving the relative order of ret...

Coding & Algorithms
5
0
51 people solved
May 22, 2026
Google logo
Google
Medium
Product Manager

PM Technical: Sketch the Backend Architecture Behind Strava's Activity Tracking

As a product manager, you are asked a technical question: how do the systems behind Strava work? Strava is a fitness app where people record runs, rid...

System DesignTechnical Tradeoffs for PMsSystem Design Fundamentals
1
0
24 people solved
Oct 25, 2024
Google logo
Google
Medium
Product Manager

YouTube as a two-sided video platform: product design for creators and viewers

Design YouTube, the platform where people upload videos and others watch them. Explain who it serves, which of their problems it solves and the produc...

Product Design & StrategyProduct SenseGrowth & Monetization
0
0
7 people solved
Mar 18, 2024
Flipkart logo
Flipkart
Medium
Product Manager

Size Flipkart's Television Unit Volume in the Diwali Festive Sale Window

Size Flipkart's color television sales over the Diwali festival in India. The interviewer expects a structured estimate: an equation you can defend, e...

Product / Decision MakingEstimation & Market Sizing
0
0
5 people solved
Aug 5, 2024
Lyft logo
Lyft
Medium
Product Manager

Lyft Product Design: Arrival-Time Estimates in the Driver Experience

You are a product manager at Lyft. Design the ETA (estimated time of arrival) system that Lyft drivers rely on: decide what it should achieve, which d...

Product Design & StrategyProduct Design & Improvement
1
0
9 people solved
Jan 16, 2024
Lyft logo
Lyft
Medium
Product Manager

Lyft product health monitoring: choosing and organizing the dashboard metrics

You are the product manager for Lyft. Describe the dashboard you would build to tell whether the app is healthy: what health means here, which metrics...

Analytics & ExperimentationMetrics & KPIs
0
0
6 people solved
Apr 15, 2024
Google logo
Google
Medium
Product Manager

Estimation: student and intern headcounts for the New York region

How many students, and how many interns, are there in and around New York? Build an estimate for each number, explain how you structured it, label eve...

Product / Decision MakingEstimation & Market Sizing
0
0
6 people solved
Apr 4, 2024
Bloomberg logo
Bloomberg
Medium
Software Engineer Locked

Solve sliding-window, flattening, decode, and O(1) random set

This multi-part question evaluates competence in string processing and nested parsing, linked-list flattening and recursion depth management, dynamic ...

Coding & AlgorithmsTwo Pointers & Sliding WindowData Structure Design
12
0
141 people solved
Feb 4, 2026
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