PracHub
QuestionsExperienceLearningGuidesInterview PrepGreen Card
PracHub

Master your tech interviews with 10,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com
  • (916) 541-4762

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

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
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
Waymo logo
Waymo
Medium
Software Engineer

In-Place Rectangle Copy Within a 2D Array Using O(1) Extra Memory

You are given a 2D array grid and a rectangular block inside it: the block has height rows and width columns and its top-left cell is (src_row, src_co...

Coding & AlgorithmsGrids & Matrices
2
0
32 people solved
Sep 10, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Monitor Devices Over an Unreliable Network

Design a central system that communicates with devices in a power-grid setting over the unreliable public Internet. Devices must report their status t...

System DesignFault Tolerance & FailoverConsistency & Availability
13
0
107 people solved
Aug 24, 2026
Meta logo
Meta
Hard
Software Engineer

Design Friend Recommendations for a Large Friendship Graph

Design a friend-recommendation algorithm given a list of users and friendship pairs. Explain a recommendation strategy, its ranking policy, and how yo...

Software Engineering FundamentalsGraphs
4
0
35 people solved
Sep 4, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Inverse-Depth Weighted Sum of a Nested Integer List

Compute a nested integer sum whose weights decrease toward the deepest level, leaving deepest integers with weight one. The problem tests recursive da...

Coding & Algorithms
7
1
67 people solved
Aug 30, 2026
Bridge logo
Bridge
Medium
Software Engineer Locked

Select an Object by a Dynamic Integer Field

Implement and explain a function that receives a list of objects whose values are integers, a field name, and a mode MIN or MAX. Make the API or objec...

Software Engineering Fundamentals
13
0
128 people solved
Jul 30, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Collaborating With Teammates Across Regions and Working From Home

Your team is spread across different regions, and some teammates work from home. The interviewer asks how you collaborate in each situation, and in a ...

Behavioral & LeadershipConflict & Collaboration
1
0
9 people solved
Sep 30, 2026
UiPath logo
UiPath
Medium
Machine Learning Engineer

Reduce overfitting and explain the mean squared error loss

A machine learning phone screen asks several short conceptual questions in quick succession. Two of them are reconstructed below: how to reduce overfi...

Machine LearningML Fundamentals
0
0
8 people solved
Sep 28, 2026
Aurora logo
Aurora
Hard
Machine Learning EngineerSenior+

Pitching an LLM-for-Autonomy Initiative to Leadership to Win Scope

After a long discussion about applying large language models to autonomous driving, the interviewer asks a pointed follow-up: suppose we now want to w...

Behavioral & LeadershipLeadership & Influence
2
0
14 people solved
Sep 23, 2026
Jump Trading logo
Jump Trading
Easy
Software Engineer Locked

Identify Files That Need Synchronization

Identify source files requiring synchronization by parsing metadata, checking source readability, destination presence and writability, and size or mo...

Coding & Algorithms
19
0
156 people solved
Aug 12, 2026
Upstart logo
Upstart
Medium
Software Engineer

Check Whether Two Words Are Case-Insensitive Anagrams

Determine whether two words are anagrams, ignoring letter case. Anagrams contain the same letters with the same multiplicities, possibly in a differen...

Coding & AlgorithmsArrays & Strings
3
0
26 people solved
Sep 12, 2026
Instacart logo
Instacart
Medium
Software Engineer

Design a Grocery-Ordering Backend with Reliable Inventory Reservations

Design the backend of a simplified grocery-ordering service, focusing on inventory. Explain how products and store-level stock are represented, how or...

System DesignSystem Design FundamentalsTransactions & Isolation
2
0
27 people solved
Sep 11, 2026
Quora logo
Quora
Medium
Data Scientist

Measure the Health and Effectiveness of an Add-Question Button

Measure the Health and Effectiveness of an Add-Question Button A question-and-answer platform wants reporting metrics for the health and effectiveness...

Analytics & ExperimentationMetrics & KPIsUser Behavior & Funnels
1
0
14 people solved
Sep 27, 2026
Tradedesk logo
Tradedesk
Medium
Frontend Engineer

Debug a Frontend Component That Shows Wrong API Results

A front-end component sends an API request whenever its input changes and displays the response. Users report that the results on screen are sometimes...

Software Engineering FundamentalsDebugging
1
0
16 people solved
Sep 15, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Find the Earliest Contiguous Removal That Balances Index Sums

Implement smallest_balanced_removal(nums, k) for an integer array nums and an integer k satisfying 1 <= k <= len(nums). Use the exact integer represen...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
4
0
82 people solved
Sep 9, 2026
Robinhood logo
Robinhood
Medium
Software EngineerSenior+

Give a Project Deep Dive Grounded in Personal Ownership

Give a technical deep dive into a project you worked on. Explain its goal, its architecture, your own responsibilities, one important technical decisi...

Software Engineering FundamentalsProject Deep Dive
3
0
38 people solved
Sep 4, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Find the First Anagram Window in a String

Find the earliest contiguous anagram of a query inside a lookup string under a linear-time target. The task covers repeated characters, first-window h...

Coding & AlgorithmsTwo Pointers & Sliding Window
25
1
287 people solved
Aug 13, 2026
Toast logo
Toast
Hard
Software Engineer

Code Review of a Multi-File HTTP API: Wrong Method, Payload and Validation Bugs

In a one-hour code-review round you are handed several source files that together implement an HTTP API, and you are asked to find the bugs in them. Y...

Software Engineering FundamentalsCode Quality & MaintainabilityAPI Design
0
0
6 people solved
Sep 23, 2026
Quora logo
Quora
Medium
Data Scientist

Test a Post-Creation Tab While Accounting for User Interference

Test a Post-Creation Tab While Accounting for User Interference A question-and-answer platform is considering adding a post-creation tab next to its e...

Analytics & ExperimentationExperiment Design (A/B Testing)Experiment Analysis & Readout
1
0
13 people solved
Sep 27, 2026
xAI logo
xAI
Medium
Machine Learning EngineerNew Grad

Dynamic Batching Decode Loop for a Mock Language Model with Slot Refilling

You are given a mock language model with a single method. Each call takes a batch of token sequences, where every entry is the full token prefix gener...

Software Engineering FundamentalsLLM Inference & Serving
3
0
29 people solved
Sep 5, 2026
Waymo logo
Waymo
Medium
Software Engineer

Design a Matchmaking Service With Join, Cancel, Matching, Notification and Expiry

Design a matchmaking service for an online game. The service must support: - joining the matchmaking queue; - cancelling a matchmaking request; - matc...

System DesignSystem Design Fundamentals
2
0
24 people solved
Sep 10, 2026
Previous1...424344...596Next
Popular Categories
SQL
Daily Quest

Sign in to earn XP for every problem you solve.

Explore by company

MetaGoogleAmazonAppleMicrosoftNetflixCapital OneTikTokDoorDashUberCoinbaseAirbnbLinkedInSalesforceSnapchatSpotifyPayPalLyftPinterestAnthropicOpenAIDatabricksRipplingJane StreetStripe

Explore by role

Data ScientistSoftware EngineerMachine Learning EngineerProduct ManagerData EngineerData AnalystFrontend EngineerBackend EngineerSite Reliability EngineerTechnical Program Manager

Explore by category

Coding & AlgorithmsSystem DesignMachine LearningML System DesignSQL & PythonAnalytics & ExperimentationBehavioral & LeadershipStatistics & MathProduct / Decision MakingProduct Design & StrategySWE Fundamentals

Popular interview guides

Meta SWEMeta DSMeta PMGoogle SWEGoogle DSGoogle MLEAmazon SWEAmazon DSAmazon DEApple SWEApple MLEMicrosoft SWEMicrosoft DSTikTok SWETikTok DSUber SWEUber DSDoorDash SWEDoorDash DSAirbnb SWEAirbnb DSLinkedIn SWELinkedIn DSNetflix SWECoinbase SWECapital One DSOpenAI SWEAnthropic SWE

Popular question categories

Meta CodingGoogle System DesignAmazon CodingMeta AnalyticsGoogle MLAmazon System DesignCapital One SQLTikTok MLMeta SQLUber AnalyticsDoorDash CodingGoogle CodingNetflix System DesignAirbnb AnalyticsLinkedIn SQL