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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026

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>Build a 30-day plan from PracHub's Meta SWE questions.

Two weeks of coding, then system design, then mock rounds. Start day 1?

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
Applied ScientistIntern

Research Project Deep Dive: Motivation, Training Pipeline, Results, and Takeaways

In a research internship interview, you are asked to walk through one of your own research projects in depth, in about 20 minutes. Choose a project in...

Machine LearningProject Deep Dive
3
0
29 people solved
Sep 17, 2026
Harvey logo
Harvey
Medium
Software Engineer

Design File Storage with Metadata, Access Control, and Chunked Uploads

Design a file-storage service with a drive-style user experience. Focus on the separation of file metadata from file bytes, access-control lists, and ...

System DesignFile & Media StorageAuthentication & Authorization
8
0
54 people solved
Sep 1, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Explain How You Know a Professional Referrer

Explain How You Know a Professional Referrer Explain the professional context in which you know a referrer, without naming either person or relying on...

Behavioral & Leadership
12
0
153 people solved
Aug 28, 2026
Affirm logo
Affirm
Medium
Data AnalystSenior+

Investigate a Quarterly Increase in Loan Delinquency

Investigate a Quarterly Increase in Loan Delinquency A lending business sees its delinquency rate rise in the past quarter. Explain how you would inve...

Analytics & ExperimentationMetric DiagnosticsSegmentation & Cohort Analysis
2
0
17 people solved
Sep 27, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Build a Live API-Connected DAG Workflow for Late-Order Refund Requests

Design a working local demonstration of an order-status and support-decision workflow. Separate components must communicate through real API calls, an...

Software Engineering Fundamentals
2
0
41 people solved
Sep 5, 2026
Upstart logo
Upstart
Medium
Software Engineer

Compute Buffet Revenue with Waiting Guests and Repeat Visits

A buffet has a limited number of seats. Guests arrive, wait if necessary, eat if seated, and eventually leave. Each guest has a fixed amount they are ...

Coding & AlgorithmsSimulation & State Machines
4
0
45 people solved
Sep 12, 2026
IBM logo
IBM
Medium
Software Engineer

Count Tree Vertices with Pythagorean Distances

Given an unweighted, undirected tree with n vertices labeled 0 through n - 1, and three distinct fixed vertices x, y, and z, count the vertices whose ...

Coding & AlgorithmsTreesGraphs
5
0
67 people solved
Aug 31, 2026
Amazon logo
Amazon
Medium
Software Engineer

Coordinate a Fleet of Restaurant Robots

Design a system that coordinates many robots working in a restaurant. Begin by clarifying what work the robots perform, then explain task assignment, ...

System DesignSystem Design FundamentalsDistributed Coordination
1
0
25 people solved
Sep 20, 2026
Waymo logo
Waymo
Medium
Frontend EngineerSenior+

Filter an N-ary Tree by Substring and Render It With Indentation in a UI

This phone screen for a senior frontend role has two connected parts. You are given an n-ary tree in which every node holds a string value and a list ...

Software Engineering FundamentalsReact & UI FrameworksTrees
3
0
38 people solved
Sep 10, 2026
Uber logo
Uber
Hard
Machine Learning Engineer

Find Robots by Nearest-Blocker Distances

Find Robots by Nearest-Blocker Distances Implement matching_robot_locations(grid: list[list[str]], query: list[int]) -> list[list[int]]. The rectangul...

Coding & Algorithms
5
0
95 people solved
Sep 2, 2026
Aurora logo
Aurora
Hard
Machine Learning EngineerSenior+

Applying LLMs to Autonomous Driving Despite Hallucination and Real-Time Limits

You are interviewing for a machine learning engineer role at a company that builds self-driving vehicles. The interviewer keeps returning to one theme...

ML System DesignLLM Applications
3
0
23 people solved
Sep 23, 2026
Discord logo
Discord
Medium
Data ScientistSenior+

Explain a Business Project That Used Causal Inference

Explain a Business Project That Used Causal Inference Describe a time you used causal inference to solve a business issue. Explain the identification ...

Behavioral & LeadershipCausal InferenceProject Deep Dive
2
0
17 people solved
Sep 26, 2026
Google logo
Google
Medium
Software Engineer

Find the Time for Grid Signals to Reach Every Target

Given a rectangular city grid, return the earliest time at which every target has received a signal. All sources begin transmitting simultaneously at ...

Coding & AlgorithmsGrids & Matrices
6
1
104 people solved
Aug 27, 2026
Scale AI logo
Scale AI
Easy
Machine Learning Engineer Locked

Design an Embedding and Classification API

Design an API that generates text embeddings and optional compatible classifications for interactive and batch requests. Cover version contracts, prep...

ML System DesignMLOps & Model ServingAPI Design
60
0
703 people solved
Jul 27, 2026
StackAdapt logo
StackAdapt
Medium
Machine Learning Engineer

Camel and Bananas: Maximize Bananas Delivered Across the Desert

A camel has to move bananas from a starting point across a desert to a market. Assume the standard parameters of this classic brainteaser: - 3,000 ban...

Statistics & MathPuzzles & Brainteasers
2
0
34 people solved
Sep 9, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Make a Hostname-Limited Crawler Concurrent

A crawler receives a startUrl and an htmlParser dependency that discovers linked URLs. It should crawl only URLs reachable from the start under the sa...

Software Engineering FundamentalsConcurrencyGraphs
6
0
72 people solved
Sep 3, 2026
Goldman Sachs logo
Goldman Sachs
Easy
Software Engineer

Search for a Target in a Matrix Sorted by Rows and Columns

Given a matrix of integers in which every row is sorted in non-decreasing order from left to right and every column is sorted in non-decreasing order ...

Coding & AlgorithmsGrids & Matrices
6
0
47 people solved
Sep 13, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a Chatbot with Object-Oriented Principles

Study an extensible object-oriented chatbot design with clean entities, replaceable providers, streaming states, and testable boundaries.

Software Engineering Fundamentals
8
0
169 people solved
Aug 24, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Find Duplicate Files by Content in a Directory Tree and Explain CPU vs I/O Costs

Write a program that takes the path of a root directory, walks the entire tree beneath it, and finds every group of regular files whose contents are b...

Software Engineering FundamentalsOperating Systems
3
0
28 people solved
Sep 18, 2026
Glean logo
Glean
Medium
Frontend Engineer

Design Real-Time Typeahead for Enterprise Search: History, People, Docs, Apps, Filters

In the system design round of a frontend engineer loop, the question was: how would you implement the typeahead search of the company's enterprise sea...

System DesignUI Components & AccessibilitySearch & Feed Systems
0
0
12 people solved
Sep 30, 2026
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