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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
Etsy logo
Etsy
Easy
Machine Learning Engineer Locked

Explain Graph Recommendations and Vision-Language Model Training Trade-offs

Practice a Etsy machine learning interview question about explain graph recommendations and vision-language model training trade-offs. The prompt cove...

Machine Learning
2
0
27 people solved
Jun 13, 2026
xAI logo
xAI
Medium
Machine Learning Engineer

Implement dynamic batching for token decoding

You are given a black-box “simulated language model” interface that can advance many sequences in a batch. Model interface - Tokens are integers. - mo...

Coding & AlgorithmsLLM Inference & Serving
63
0
460 people solved
Sep 22, 2025
Google logo
Google
Medium
Software Engineer Locked

Solve graph and linked list tasks

This question evaluates competencies in dependency graph modeling and reachability, shortest-path computation in weighted directed graphs, and space-e...

Coding & AlgorithmsGraphs
23
0
238 people solved
Feb 12, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Compute delivery times on a grid

You are given a 2D grid with cells marked as 'M' (warehouses), 'C' (customers), 'X' (obstacles), and '.' (roads). You can move up, down, left, or righ...

Coding & AlgorithmsGrids & MatricesGraphs
19
0
135 people solved
Sep 6, 2025
MathWorks logo
MathWorks
Medium
Software EngineerNew Grad

Determine Whether P's Position Is Unique

You are given an R x C rectangular grid and a set of named entities. Each entity must be placed in exactly one distinct cell. You are also given a col...

Coding & AlgorithmsBacktracking & Recursion
8
0
119 people solved
Jan 22, 2026
Snapchat logo
Snapchat
Medium
Machine Learning Engineer Locked

Explain BatchNorm, optimizers, and L1/L2

This question evaluates a candidate's understanding of core machine learning fundamentals—Batch Normalization, optimizer behaviors (SGD, Momentum, RMS...

Machine LearningNeural Networks & TrainingML Fundamentals
10
0
126 people solved
Feb 11, 2026
Uber logo
Uber
Medium
Product Manager

Uber Product Design: Making Large City Airport Trips Smoother for Travelers

You are a product manager at Uber. How would you improve things for passengers at a large, busy airport that serves a major city? `hint Walk the trave...

Product Design & StrategyProduct Design & Improvement
1
0
8 people solved
Jan 5, 2026
Omnissa logo
Omnissa
Medium
Software Engineer Locked

Check Whether a Singly Linked List Is a Palindrome

Construct a singly linked list and test whether its values form a palindrome. The exercise requires linear time and constant auxiliary space for the c...

Coding & Algorithms
3
0
37 people solved
Sep 4, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Scale a rules engine for high traffic

This question evaluates understanding of scalable real-time system design, distributed architectures, consistency versus latency trade-offs, caching a...

System DesignSystem Design FundamentalsCaching
48
0
633 people solved
Feb 12, 2026
Oracle logo
Oracle
Medium
Software EngineerSenior+

Maximum stock trading profit with at most k buy-and-sell transactions

You are given an integer k and a list prices, where prices[i] is the price of one share of a stock on day i. You may complete at most k transactions, ...

Coding & AlgorithmsDynamic Programming
2
0
14 people solved
Apr 3, 2026
Hudson River Trading logo
Hudson River Trading
Hard
Software Engineer

Why pursue full-stack engineering?

You are interviewing for a full-stack software engineering role. Explain why you are specifically interested in full-stack work instead of focusing on...

Behavioral & Leadership
14
1
110 people solved
Apr 6, 2026
Google logo
Google
Medium
Product Manager

Building a Responsible-AI Process: Triage of User Ethics Complaints and Rule Enforcement

In a product manager interview, you are asked how you would handle ethical concerns that users raise about an AI or machine learning product, and how ...

Machine LearningAI Product ManagementTrust & Safety
0
0
17 people solved
May 16, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design a packet reassembler API

Design a PacketAssembler API for Streaming Fragments Context and Assumptions - You are building a small component that assembles packets from a byte s...

System DesignData Structure Design
22
1
244 people solved
Sep 6, 2025
Stripe logo
Stripe
Easy
Data Engineer Locked

Compute shipping cost with tiered pricing

This question evaluates the ability to implement tiered billing and aggregate shipping costs across order line items, testing competencies in algorith...

Coding & AlgorithmsArrays & StringsMath & Number Theory
12
0
129 people solved
Jan 17, 2026
Uber logo
Uber
Medium
Machine Learning Engineer

Compute currency conversion via graph search

Given a list of currency pairs, e.g., [('USD','CAD'), ('CAD','EUR'), ...], and a parallel list of conversion ratios [1.1, 1.2, ...] where ratio r mean...

Coding & AlgorithmsGraphs
16
0
249 people solved
Aug 13, 2025
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a GPU-Efficient Video Service

This question evaluates competency in designing GPU-constrained, production-grade ML serving platforms, emphasizing resource management, job schedulin...

ML System DesignGPU InfrastructureJob Scheduling & Workflows
14
0
127 people solved
Feb 23, 2026
Snapchat logo
Snapchat
Medium
Product Manager

AI Agent That Turns Scattered Health Records into a Trustworthy Patient Summary

Design an AI agent for healthcare that gathers a patient's medical history and produces a summary of it. Cover both the product and the system behind ...

Product Design & StrategyAI Product ManagementAI Agents
0
0
7 people solved
Apr 20, 2026
Airbnb logo
Airbnb
Medium
Data Scientist Locked

Build and evaluate an order prediction model

This question evaluates a data scientist's competency in building and evaluating binary classification models with temporal constraints and operationa...

Machine LearningSupervised LearningModel Evaluation
12
0
127 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Product Manager

Diagnosing a Sudden 50% Rise in Average Comments on a News Platform

You are a product manager for a news platform where readers can comment on stories. Over a span of two days, the platform's average number of comments...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
1
0
13 people solved
Aug 28, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Validate parentheses with one or three bracket types

Problem Given a string s consisting only of bracket characters, determine whether it is valid. A string is valid if: - Every opening bracket has a cor...

Coding & AlgorithmsStacks & Queues
9
1
106 people solved
Oct 20, 2025
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