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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
Stripe logo
Stripe
Medium
Product Manager

Theme Park GM Case: Cutting Attraction Wait Times at Disneyland

You are the general manager of Disneyland, and you want guests to spend less time waiting in line. What would you do? Explain which lines you would fo...

Product Design & StrategyOperations & Capacity
0
0
8 people solved
Feb 28, 2026
Amazon logo
Amazon
Medium
Software Engineer

Minimum Moves for a Squirrel to Carry Every Nut to a Tree One at a Time

A squirrel and a tree are on a rectangular grid with height rows and width columns, and several nuts lie on other cells of the grid. The squirrel must...

Coding & AlgorithmsGreedy
3
0
23 people solved
Mar 11, 2026
Slickdeals logo
Slickdeals
Medium
Product Manager

Diagnose a Sudden Single-Day Wave of Slack Extension Uninstalls

You discover that, within a single day, 20% of the users of a Slack extension uninstalled it. Explain the assumptions you would make about the situati...

Analytics & ExperimentationMetric Diagnostics
1
0
11 people solved
Feb 25, 2026
Meta logo
Meta
Hard
Data Scientist

Choose and compute recommender evaluation metrics

Restaurant Recommender: Offline Evaluation and Modeling Context: You are scoring p(y=1|x) with logistic regression to predict if a user will engage wi...

Machine Learning
8
0
88 people solved
Oct 13, 2025
Upstart logo
Upstart
Hard
Data Scientist

Decide to ship a signup experiment

A/B Test Plan: Redesigned User Signup Flow Context and Data You are analyzing an A/B experiment for a redesigned user signup flow. The dataset include...

Analytics & Experimentation
9
0
93 people solved
Oct 13, 2025
Atlassian logo
Atlassian
Medium
Data Scientist

Identify Top-3 Users by Recent Total Spend

Users +----+-------+-------------+ | id | name | joined_date | +----+-------+-------------+ | 1 | Alice | 2023-01-02 | | 2 | Bob | 2023-02-14 |...

Data Manipulation (SQL/Python)
107
0
216 people solved
Aug 4, 2025
Glovo logo
Glovo
Medium
Software Engineer

Why Glovo, Strengths and Weaknesses, People Management and Disagreeing with a Manager

The final round of a mid-level software engineer interview loop at Glovo, a food delivery company within the Delivery Hero group, was behavioral. Inst...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
1
0
13 people solved
Feb 10, 2026
Coinbase logo
Coinbase
Medium
Data Scientist Locked

Optimize no-penalty test strategy

Choose how many of 50 five-option multiple-choice questions to analyze versus blind-guess to maximize expected score within a 900-second limit. Analys...

Statistics & Math
9
1
69 people solved
Oct 13, 2025
Lyft logo
Lyft
Medium
Software Engineer

Print the K-th non-empty line

Given a large UTF-8 text file, write a program that prints the K-th non-empty line. Do not load the whole file into memory. Specify how you handle fil...

Data Manipulation (SQL/Python)Operating SystemsProgramming Languages
17
0
154 people solved
Sep 6, 2025
Snapchat logo
Snapchat
Hard
Software Engineer

Compute shortest path in a 2D grid

Given an m x n grid where: - 0 represents an empty cell you can move through - 1 represents a blocked cell you cannot enter - movement is allowed in 4...

Coding & Algorithms
6
0
66 people solved
Jan 4, 2026
ByteDance logo
ByteDance
Hard
Machine Learning Engineer

Count Special Subarrays by Modular Frequency

You are given an integer array nums, and two integers modulo and target, where 0 <= target < modulo. Call an index i special if nums[i] % modulo == ta...

Coding & Algorithms
2
0
27 people solved
Oct 8, 2025
Stripe logo
Stripe
Medium
Software Engineer Locked

Design a Merchant Ledger Service

This question evaluates system design skills related to modeling monetary values, transactional integrity, idempotency, auditability, concurrency cont...

System DesignPayments & LedgersDistributed Transactions & Idempotency
22
1
271 people solved
Oct 7, 2025
Meta logo
Meta
Medium
Machine Learning EngineerSenior+

Discuss conflicts, proudest project, and departure reasons

Behavioral & Leadership Questions — Machine Learning Engineer (Technical Screen) Answer the following prompts concisely, using concrete examples from ...

Behavioral & Leadership
6
0
81 people solved
Aug 11, 2025
Apple logo
Apple
Medium
Software Engineer Locked

Explain key React concepts and error handling

This question evaluates competency in React fundamentals, including understanding of the Virtual DOM, Hooks usage, React 18 concurrent features, serve...

Software Engineering FundamentalsReact & UI FrameworksState Management
16
0
128 people solved
Feb 12, 2026
Apple logo
Apple
Hard
Data Scientist

Telemetry and Metric Specs for a Connected Vending Machine with Recommendations

A team is developing an internet-connected vending machine with a companion app. The machine will recommend products to customers based on their purch...

Analytics & ExperimentationMetrics & KPIsData Ingestion & CDC
0
0
5 people solved
May 2, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Explain a Project with a Diagram and Deep Dive into Your Design

Communicate a project through a simple data-flow diagram, then explain design choices, implementation ownership, failure behavior, and validation.

Software Engineering FundamentalsProject Deep DiveCommunication & Stakeholders
5
0
38 people solved
Sep 17, 2026
Mistral AI logo
Mistral AI
Medium
Product Manager

Designing an AI Product for Prosumers Who Choose Their Own Work Tools

Design an AI tool for professional consumers, often called prosumers: individuals who choose, and often pay for, the software they use in their own wo...

Product Design & StrategyAI Product ManagementProduct Sense
0
0
6 people solved
Jun 10, 2026
Meta logo
Meta
Medium
Product Manager

Architecting a RAM-Based Key-Value Cache: Eviction, Expiry, Consistency and Sharding

In a technical round for a product manager role, the interviewer asks you to design a cache that keeps frequently requested data in memory, so applica...

System DesignTechnical Tradeoffs for PMsCaching
0
0
9 people solved
Feb 13, 2026
Meta logo
Meta
Medium
Software Engineer

Determine if subarray sums to target

You are given an array of non-negative integers and a non-negative integer target. Determine whether there exists a contiguous subarray (continuous se...

Coding & Algorithms
14
0
109 people solved
Nov 11, 2025
Google logo
Google
Medium
Product Manager

Assess and Prioritize the Key Obstacles Holding Back Google Workspace

Google Workspace is Google's suite of work tools for organizations, including Gmail, Calendar, Drive, Docs, Sheets, Slides, Meet and Chat. As a produc...

Product Design & StrategyProduct StrategyMarket & Competitive Analysis
1
0
8 people solved
Jun 24, 2026
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