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
12.0k
Companies
570
Updated
10.05.2026
12.0k Questions 570 Companies10.05.2026
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
TikTok logo
TikTok
Hard
Product Manager

Detecting and Mitigating Cheating in Games

Product Strategy Prompt: Detecting and Mitigating Cheating in Online Games Assume you are the Product Manager for a competitive online game with real-...

Product Design & StrategyProduct StrategyApplication Security
14
0
64 people solved
Jul 4, 2025
Meta logo
Meta
Medium
Software Engineer Locked

Maximize Letters from Disjoint Words

This question evaluates understanding of combinatorial selection, set-based constraints, and efficient representation and enumeration of candidate sub...

Coding & Algorithms
3
0
32 people solved
Dec 30, 2025
Meta logo
Meta
Hard
Data Scientist

Manage promotions and project portfolio tradeoffs

Context You manage a 10-person Data Science team operating across multiple locations and time zones. Three senior individual contributors (ICs) are ac...

Behavioral & Leadership
6
0
52 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Data Scientist

Design Metrics for Content Moderation and Chatbot Evaluation

Design Metrics for Content Moderation and Chatbot Evaluation Scenario Trust & Safety data science: You are asked to design metrics for two situations:...

Analytics & Experimentation
5
0
74 people solved
Aug 4, 2025
TikTok logo
TikTok
Medium
Data Scientist

Optimize threshold using confusion matrix and costs

Calibrated Classifier on an Imbalanced Dataset (1% positives) You have a perfectly calibrated binary classifier evaluated on 10,000 held-out examples....

Statistics & Math
8
0
77 people solved
Oct 13, 2025
Shopify logo
Shopify
Medium
Data Scientist

Describe toughest project and align stakeholders remotely

Describe the single most challenging data science project you led end-to-end in the last 24 months. In 90 seconds, state: the business goal, exact sco...

Behavioral & Leadership
3
0
58 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer Locked

Troubleshoot a website outage with disk full

This question evaluates operational incident response and systems troubleshooting skills, including understanding of disk/storage behavior, log and me...

Software Engineering Fundamentals
4
0
51 people solved
Jan 5, 2026
Capital One logo
Capital One
Medium
Data Scientist

Maintain profit margin with new product line

Year 2 volume needed to maintain Year 1 profit margin after adding Vegan line Context - m denotes million dollars. - In Year 2, you add a Vegan burger...

Statistics & Math
3
0
52 people solved
Oct 13, 2025
Stripe logo
Stripe
Medium
Data Scientist

Write SQL to monitor weekly chargeback spikes

Write a single SQL query (PostgreSQL) to detect weekly chargeback spikes by country and industry. Week starts Monday (use date_trunc('week', ts) with ...

Data Manipulation (SQL/Python)
1
0
21 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Data Scientist

Define composite success for search and test it

A new search feature is evaluated with two binary labels per query: relevancy=1/0 and accuracy=1/0. 1) Propose a composite success metric that uses th...

Analytics & Experimentation
3
0
37 people solved
Oct 13, 2025
SoFi logo
SoFi
Medium
Data Scientist

Align with PM on ranking goals

Stakeholder Alignment and De-risking a Home Page Product Ranking Initiative Context You are a data scientist asked by a PM to "rank products on the ho...

Behavioral & Leadership
7
0
75 people solved
Oct 13, 2025
Chime logo
Chime
Medium
Data Scientist

Determine Key Metrics for Spend-Tracker Launch Decision

Determine Key Metrics for Spend-Tracker Launch Decision A/B Decision Framework: Spend-Tracker Feature Context A fintech app ran an A/B test (Test vs. ...

Analytics & ExperimentationExperiment Analysis & ReadoutMetrics & KPIs
80
0
239 people solved
Aug 4, 2025
Sybill logo
Sybill
Hard
Software Engineer

Design tests to verify shuffle randomness

Design tests to verify shuffle randomness Experiment Design: Is Your Array Shuffle Truly Random? You're given a shuffle(arr) function that takes an ar...

Statistics & Math
3
0
50 people solved
Aug 10, 2025
Hard
Data Scientist

Demonstrate behavioral problem-solving with STAR

Data Scientist Onsite — Behavioral & Leadership (Use STAR) Answer concisely using the STAR framework (Situation, Task, Action, Result). Prepare brief,...

Behavioral & LeadershipCommunication & StakeholdersFailure & Learning
5
0
91 people solved
Oct 13, 2025
Meta logo
Meta
Medium
Software Engineer

Compute BST range sum

Given the root of a binary search tree and two integers low and high (inclusive), compute the sum of values of all nodes with low <= val <= high. Prov...

Coding & Algorithms
4
0
43 people solved
Aug 14, 2025
Fidelity logo
Fidelity
Medium
Software Engineer

Describe Angular features

Describe Angular features What are the key features of Angular? Discuss modules, components, templates, dependency injection, change detection, RxJS o...

Coding & Algorithms
7
0
53 people solved
Jul 31, 2025
Meta logo
Meta
Hard
Data Scientist

Design an A/B test for WhatsApp call reliability

A/B Test Design: Adaptive Codec for Unstable Networks (WhatsApp Calling) Context You join the Calling organization. A PM proposes enabling an adaptive...

Analytics & Experimentation
5
0
60 people solved
Oct 13, 2025
Microsoft logo
Microsoft
Medium
Machine Learning EngineerSenior+ Locked

Compare preference alignment methods for LLMs

This question evaluates expertise in preference alignment techniques for large language models—including supervised fine-tuning, RLHF-style reward-mod...

Machine LearningFine-Tuning & Alignment TechniquesAI Safety & Alignment
14
0
105 people solved
Jan 6, 2026
Stripe logo
Stripe
Medium
Data Scientist

Write SQL to detect recurring non-subscription users

You have two tables: merchant and transaction. Assume 'today' is 2025-09-01. Schema: merchant(merchant_id INT PK, merchant_name TEXT, country TEXT, cr...

Data Manipulation (SQL/Python)
1
0
25 people solved
Oct 13, 2025
Moloco logo
Moloco
Hard
Software Engineer

Design Search Autocomplete

Design a large-scale autocomplete service for a search engine. As a user types a query prefix, the system should return the top 5 suggested full queri...

System Design
9
0
59 people solved
Apr 12, 2026
Previous1...544545546...599Next
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