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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
Visa logo
Visa
Medium
Software Engineer I Locked

Count Cross-Array Pairs with a Target Sum

Count cross-array index pairs whose values add to a target, with duplicates contributing their full multiplicity. Use complementary frequency counts o...

Coding & Algorithms
4
0
47 people solved
Aug 8, 2026
Microsoft logo
Microsoft
Medium
Data Scientist

Implement rotated array binary search with duplicates

Given an integer array nums that is a non-decreasing array rotated an unknown number of times. Duplicates may exist. Implement a function that returns...

Coding & AlgorithmsBinary Search
10
0
119 people solved
Oct 13, 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
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
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer II Locked

Optimize User-and-Region Queries on a Million-Row Table

Design an evidence-driven optimization plan for user and regional queries on a million-row table, comparing indexes, partitioning, sharding, and repli...

System Design
7
0
78 people solved
Aug 8, 2026
Apple logo
Apple
Hard
Software Engineer

ASIC Verification Fundamentals Across SystemVerilog UVM CDC and Architecture

Work through this ASIC design-verification interview set. Use small SystemVerilog examples where they make an answer clearer, and distinguish simulati...

Software Engineering Fundamentals
7
0
126 people solved
Jan 5, 2025
Netflix logo
Netflix
Hard
Software Engineer

Design viewport dedup for Netflix home page

Design viewport dedup for Netflix home page Design the Above-the-Fold Deduplicated Home Page Rendering Context You are designing the initial viewport ...

System DesignSearch & Feed SystemsPersonalization
42
0
417 people solved
Aug 1, 2025
Tesla logo
Tesla
Medium
Software Engineer

Design a contiguous segment allocator

Design an in-memory contiguous segment allocator over an array of n cells (indexed 0..n- 1), all initially free. Support two operations: 1) allocate(l...

Coding & AlgorithmsData Structure DesignIntervals & Scheduling
17
0
155 people solved
Sep 6, 2025
Brex logo
Brex
Medium
Software Engineer

Build a React color multi-select dropdown UI

Implement a React UI that lets users multi-select colors from a dropdown and view details. You are given a JavaScript object where each key is a color...

Software Engineering FundamentalsReact & UI FrameworksState Management
9
0
168 people solved
Feb 10, 2026
TikTok logo
TikTok
Medium
Software Engineer

Parse chemical formula with multipliers

Parse chemical formula with multipliers Given a string representing a chemical formula, parse it and return the total count of each element. The formu...

Coding & Algorithms
8
0
70 people solved
Jul 16, 2025
Amazon logo
Amazon
Hard
Data Scientist

Choose Models for Imbalanced Data and Time-Series Forecasting

Choose Models for Imbalanced Data and Time-Series Forecasting Scenario You must choose and tune models for (a) forecasting marketplace demand with sea...

Machine LearningTime Series & ForecastingSupervised Learning
59
0
227 people solved
Aug 4, 2025
Google logo
Google
Medium
Product Manager

Grounding, evaluation and bias controls for AI answers in Google Search

You are a product manager responsible for the AI-generated answers that Google Search shows for some queries. How should Google make sure those answer...

Machine LearningAI Product ManagementLLM Applications
1
0
14 people solved
Aug 20, 2026
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Design a live-stream comments system

This question evaluates design skills for scalable, low-latency real-time comment systems, covering architecture, data modeling, APIs, ingestion and f...

System DesignReal-Time SystemsMessaging & Event-Driven
9
0
94 people solved
Jan 22, 2026
Google logo
Google
Medium
Software Engineer

Maximize Boundary-Difference Subarray Sum

Given an integer array nums and an integer k, find the maximum possible sum of a non-empty contiguous subarray whose first and last elements differ by...

Coding & Algorithms
16
0
115 people solved
Apr 11, 2026
Snapchat logo
Snapchat
Medium
Machine Learning Engineer

Explain CLIP, contrastive losses, and retrieval limits

Answer the following ML questions in the context of multi-modal (text–video/image) retrieval: 1) How does a CLIP-style model work conceptually (archit...

Machine LearningEmbeddings & Vector SearchNeural Networks & Training
13
0
168 people solved
Feb 3, 2026
Bitdeer logo
Bitdeer
Hard
Software Engineer

Defend an AI Infrastructure Project's Architecture Step by Step on a Flow Diagram

This round was a deep dive into a project from the resume rather than a new design problem. Choose a project you know end to end. Draw a flow diagram ...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
0
0
7 people solved
Jul 20, 2026
Microsoft logo
Microsoft
Medium
Machine Learning EngineerSenior+ Locked

Infer user intent from typing in real time

This question evaluates machine learning system design competency in streaming, low-latency intent inference from typing and UI context, covering priv...

ML System Design
5
0
89 people solved
Jan 6, 2026
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
Amazon logo
Amazon
Medium
Software EngineerIntern

Describe failure, conflict, metrics, and AI lessons

The interview included several behavioral prompts with deep follow-up questions. Prepare clear STAR-style stories for the following: - Tell me about a...

Behavioral & LeadershipFailure & LearningConflict & Collaboration
5
0
90 people solved
Oct 31, 2025
Google logo
Google
Medium
Product Manager

Allocating Your Time as a PM When Several Teams Compete for It

You are a product manager whose product depends on several teams, and each of them wants more of your time than you can give. How would you decide whe...

Behavioral & LeadershipPrioritization & TradeoffsCommunication & Stakeholders
0
0
9 people solved
Jun 14, 2026
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