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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
NVIDIA logo
NVIDIA
Medium
Software EngineerSenior+ Locked

Design first-time Kubernetes deployment in new cloud

This question evaluates system design and cloud platform engineering skills focused on first‑time Kubernetes deployment, covering account bootstrappin...

System DesignContainers & OrchestrationCloud Platforms
12
0
207 people solved
Jan 6, 2026
Rokt logo
Rokt
Easy
Software Engineer

Design Google-scale CI/CD pipeline

You are asked to design a Continuous Integration / Continuous Deployment (CI/CD) platform and pipeline that can support a very large engineering organ...

System Design
8
0
112 people solved
Dec 6, 2025
Meta logo
Meta
Medium
Product Manager

Product Sense: Fixing a Core Pain Point in WhatsApp Group Chats

You are a product manager at Meta working on WhatsApp. Design a product or feature that improves how people communicate in WhatsApp groups. Choose whi...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
14 people solved
Sep 25, 2026
TikTok logo
TikTok
Medium
Product Manager

Improving TikTok's personalized recommendation feed for a chosen viewer segment

You are a product manager at TikTok, responsible for For You, the app's main feed of personalized video recommendations. How would you improve it? Cho...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
11 people solved
Jun 26, 2026
Meta logo
MetaAmazonGoogle

Also asked at Google, Microsoft, Apple, Nuro, Goldman Sachs, Waymo, LinkedIn, Uber, Coinbase, TikTok, Two Sigma, Liftoff, Bloomberg, Criteo, PayPal

Medium
Software Engineer

Design weighted random index picker

Design and implement a data structure that, given an array of positive integer weights w[0..n−1], supports pick() that returns index i with probabilit...

Coding & Algorithms
11
0
100 people solved
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Compare C++ new, malloc, and Placement new

Compare a C++ new expression, malloc, and placement new by separating storage allocation from object construction. Cover alignment, constructors, exce...

Software Engineering Fundamentals
5
1
90 people solved
May 15, 2026
ByteDance logo
ByteDance
Hard
Data ScientistIntern

Predict Short-Video Engagement with Skewed Data

Predict Short-Video Engagement with Skewed Data You need to predict a future engagement quantity for a short video. Explain what data you would reques...

Machine LearningSupervised LearningFeature Engineering
1
0
22 people solved
Sep 11, 2026
Stripe logo
Stripe
Medium
Data Scientist

Write SQL for snapshot features and labels

Use 'today' = 2025-09-01. Invented schema (UTC): users(u_id INT, signup_dt DATE, country STRING) events(u_id INT, event_time TIMESTAMP, arrival_time T...

Data Manipulation (SQL/Python)
5
0
46 people solved
Oct 13, 2025
Amazon logo
Amazon
Easy
Software Engineer

Compute minimal operations and optimal server pairing

You are given two independent coding problems. Problem 1: Minimum range-increments to make an array nondecreasing Given an integer array power of leng...

Coding & AlgorithmsGreedySorting
27
0
201 people solved
Dec 17, 2025
Shopify logo
Shopify
Medium
Software Engineer AI

Implement a Constant-Time LRU Cache

Implement a Constant-Time LRU Cache Implement a fixed-capacity least-recently-used cache. The captured source identifies an LRU cache coding problem b...

Coding & Algorithms
18
0
126 people solved
Apr 28, 2026
Google logo
Google
Medium
Product Manager

Responding to a coworker's unethical conduct: judgment, escalation and follow-through

Suppose you learned that someone you work with was doing something unethical. How would you respond? `hint Calibrate before acting Ask yourself how yo...

Behavioral & LeadershipEthics & Responsibility
1
0
12 people solved
Mar 14, 2026
NVIDIA logo
NVIDIA
Hard
Software Engineer Locked

Implement short algorithms on logs, grids, and strings

This multi-part Coding & Algorithms question evaluates algorithmic problem-solving skills and mastery of core competencies including temporal window r...

Coding & AlgorithmsArrays & Strings
24
0
247 people solved
Feb 11, 2026
Anthropic logo
Anthropic
Medium
Machine Learning Engineer Locked

Explain batch inference design

This question evaluates a candidate's competence in designing scalable, reliable batch inference pipelines for machine learning, covering model artifa...

Machine LearningMLOps & Model ServingETL & Data Pipelines
74
0
533 people solved
Feb 27, 2026
Google logo
GoogleASUSAmazonMeta

Also asked at Amazon, Meta

Hard
Software Engineer

Winner of the Optimal One-to-Three Stone Game

Problem Alice and Bob alternate taking the first 1,2,or 3 remaining stones, with Alice first. Each player adds the values taken to a score initially 0...

Coding & AlgorithmsDynamic Programming
0
0
6 people solved
ByteDance logo
ByteDance
Medium
Software EngineerNew Grad Locked

Explain Composite and Covering Indexes in MySQL

Explain how a MySQL composite B-tree index on tenant, status, and creation time serves different query shapes. Cover the leftmost-prefix rule, equalit...

Software Engineering Fundamentals
3
0
30 people solved
Aug 13, 2026
Uber logo
Uber
Medium
Data ScientistNew Grad Locked

Compute CDF from a PDF Function

This question evaluates a candidate's skills in numerical integration, applied numerical methods, and probability/statistics by requiring construction...

Coding & Algorithms
6
0
76 people solved
Apr 30, 2026
Coinbase logo
Coinbase
Hard
Software Engineer

Design a basic banking system

Design a Basic Online Banking System with Safe Money Movements Problem Design a minimal but production-minded online banking service. The service must...

System DesignPayments & LedgersDistributed Transactions & Idempotency
41
1
393 people solved
Aug 8, 2025
Google logo
GoogleMicrosoft
Medium
Software Engineer

Maximum Grid Path Score Within a Budget

Problem You are given an m by n integer grid and an integer budget k. Start at the top-left cell (0,0) and reach the bottom-right cell (m-1,n-1), movi...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
9 people solved
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Design a Food Review and Voting System

Design a food review system with ratings, review text, and one active vote per user and review. Model transactional vote changes, stable ranking and p...

System Design
16
0
110 people solved
Aug 2, 2026
Google logo
Google
Easy
Data Scientist

Design tests to measure latency impact

Question You are a Data Scientist supporting a large consumer product (e.g., YouTube). Engineering ships a change intended to reduce client-side / vid...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
16
0
229 people solved
Oct 13, 2025
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