PracHub
QuestionsExperienceLearningGuidesInterview Prep
Visa Tools

Visa Tools

Visa Sponsors

Find employers with sponsorship filings

H-1B Odds Calculator

Explore your lottery selection odds

Visa Bulletin

Monthly green-card priority dates

PracHub

Master your tech interviews with 18,000+ real questions from top companies.

Product

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

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • Blind 75
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com

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
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
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Troubleshoot a single-node web outage

This question evaluates operational troubleshooting, root-cause analysis, and resilience design skills for a single-node web server, testing a candida...

System Design
5
0
76 people solved
Jan 22, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Design a content moderation platform

Design a large-scale content moderation system for a short-video platform. Users can upload videos, captions, comments, audio, and other metadata. The...

ML System DesignSystem Design FundamentalsAI Safety & Alignment
17
0
120 people solved
Feb 18, 2026
Meta logo
Meta
Medium
Data Scientist

Write SQL for retention, conversion, and churn

Assume today is 2025-09-01 (use the user's local day boundaries based on users.tz). Given the following schema and sample data, write SQL to: (a) Comp...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
16
0
170 people solved
Oct 13, 2025
TikTok logo
TikTok
Medium
Data Scientist

Calculate Monthly Conversion Rate and Average Order Value

page_views +-----------+---------+---------------------+ | user_id | page_id | view_timestamp | +-----------+---------+---------------------+ |...

Data Manipulation (SQL/Python)
6
0
46 people solved
Aug 4, 2025
Netflix logo
Netflix
Medium
Data Scientist Locked

Design experiment on culture memo emphasis

This question evaluates competency in experimental design and statistical analysis for product metrics, covering hypothesis specification, randomizati...

Analytics & Experimentation
7
0
75 people solved
Oct 13, 2025
CVS Health logo
CVS Health
Medium
Data Scientist

Design Experiments for Causal Inference in Marketing Analytics

Design Experiments for Causal Inference in Marketing Analytics Technical Phone Screen: Marketing Experiments and Causal Inference Prompt You are inter...

Analytics & Experimentation
78
0
290 people solved
Aug 4, 2025
Roblox logo
Roblox
Medium
Data Scientist

Describe leading an ambiguous ads project

Behavioral: End-to-End Ownership Under Ambiguity (Ads/Growth Analytics) Context You are interviewing for a data scientist role focused on ads or growt...

Behavioral & Leadership
4
0
66 people solved
Oct 13, 2025
Spotify logo
Spotify
Medium
Product Manager

Build a Metrics Framework and North Star Metric for Spotify

You are a product manager at Spotify and have been asked to build the metrics for the product. Propose a metrics framework: the goal the metrics serve...

Analytics & ExperimentationMetrics & KPIs
1
0
16 people solved
Aug 26, 2025
Atlassian logo
Atlassian
Medium
Product Manager

Evaluate and prioritize new-market expansion options for Atlassian's team collaboration tools

You are a product manager at Atlassian, the maker of team tools such as Jira, Confluence and Trello. Leadership wants a plan for growing the company b...

Product Design & StrategyProduct StrategyGrowth & Monetization
1
0
12 people solved
Oct 8, 2025
Amazon logo
Amazon
Medium
Applied Scientist

Explain LLM architecture, tuning, evaluation

LLM Architecture, Positional Embeddings, Fine-Tuning (PEFT), Regularization, and Evaluation Context You are interviewing for a Machine Learning Engine...

Machine LearningTransformers & AttentionFine-Tuning & Alignment Techniques
10
0
116 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Data Scientist

Explain Central Limit Theorem and Its Limitations

Explain Central Limit Theorem and Its Limitations Statistics Concepts and Disease-Test Evaluation Context You are assessing core statistical concepts ...

Statistics & Math
13
0
102 people solved
Aug 4, 2025
Snapchat logo
Snapchat
Hard
Software Engineer

Compute longest increasing path in matrix

You are given an m x n grid (matrix) of integers grid, where m >= 1 and n >= 1. A path in the matrix is a sequence of cells where: - You may move from...

Coding & Algorithms
7
0
94 people solved
Dec 8, 2025
Apple logo
Apple
Hard
Data Scientist

Count Occurrences of Each Value in an Integer List, Sorted by Value

Given a list of integers that may contain repeated values, count how many times each distinct value appears. The report describes the task only as cou...

Coding & AlgorithmsArrays & Strings
0
0
3 people solved
May 2, 2026
Two Sigma logo
Two Sigma
Hard
Data Scientist

Expected Number of Good Pairs in a Randomly Weighted Complete Graph

Expected Number of Good Pairs in a Randomly Weighted Complete Graph You are given a complete graph on n vertices — every pair of distinct vertices is ...

Coding & Algorithms
5
0
47 people solved
Dec 2, 2025
Capital One logo
Capital One
Medium
Data Scientist

Explain production model drop to a PM

Role Play: Communicate Model Degradation to a Non-Technical PM You are a data scientist. A PM says: > “Your model performed great on the validation se...

Behavioral & LeadershipModel Monitoring & DriftCommunication & Stakeholders
11
0
113 people solved
Mar 1, 2026
Capital One logo
Capital One
Medium
Data Scientist

Decide and test Groupon program incrementality

Before signing, list the concrete factors and metrics you would evaluate to decide whether to participate in the coupon program, including but not lim...

Analytics & ExperimentationBusiness Case AnalysisExperiment Design (A/B Testing)
9
0
116 people solved
Oct 13, 2025
Citibank logo
Citibank
Medium
Data Scientist

Compute expected payoff of reroll dice game

Repeated Die Rolls with Stopping Rule and Costs You repeatedly roll a fair six-sided die. After each roll you immediately receive a payout equal to th...

Statistics & Math
10
0
98 people solved
Oct 13, 2025
Amazon logo
Amazon
Medium
Software Engineer

Solve jumps and anagram-similarity problems

You are given two independent tasks. Task A (Maximize calories over jumps): - There are n blocks with integer heights height[i] ≥ 0. - You start on th...

Coding & Algorithms
6
0
64 people solved
Sep 6, 2025
DoorDash logo
DoorDash
Medium
Data Scientist

Design experiment for bike delivery feature

You work on a delivery marketplace (customers, merchants, couriers). The company is considering launching a “bike delivery” capability in a subset of ...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
6
0
86 people solved
Nov 15, 2025
Google logo
Google
Medium
Data Scientist

Analyze Call Drop Rates Pre- and Post-Update Implementation

Analyze Call Drop Rates Pre- and Post-Update Implementation Engineers shipped a new Google Meet version intended to reduce call drops, but a tradition...

Analytics & Experimentation
25
0
95 people solved
Jul 12, 2025
Previous1...625626627...929Next
Popular Categories
SQLBlind 75
Daily Quest

Sign in to earn XP for every problem you solve.

Choose your next challenge

All learning

Blind 75

75 free coding problems to build your foundations, with hints, explanations, and a progress checklist.

Arrays · Graphs · Dynamic programming

Explore Blind 75

ML System Design

Work through the decisions behind machine learning systems, from data to serving.

Data · Models · Evaluation

Explore the course

System Design Interview

Practice reasoning about architecture, scale, and the tradeoffs that shape a system.

Architecture · Scale · Tradeoffs

Explore the course

Explore by company

All companies
  • Meta
  • Google
  • Amazon
  • Apple
  • Microsoft
  • Netflix
  • Capital One
  • TikTok
  • DoorDash
  • Uber
  • Coinbase
  • Airbnb
  • LinkedIn
  • Salesforce
  • Snapchat
  • Spotify
  • PayPal
  • Lyft
  • Pinterest
  • Anthropic
  • OpenAI
  • Databricks
  • Rippling
  • Jane Street

Explore by role

  • Data Scientist
  • Software Engineer
  • Machine Learning Engineer
  • Product Manager
  • Data Engineer
  • Data Analyst
  • Frontend Engineer
  • Backend Engineer
  • Site Reliability Engineer
  • Technical Program Manager

Explore by category

  • Blind 75
  • Coding & Algorithms
  • System Design
  • Machine Learning
  • ML System Design
  • SQL & Python
  • Analytics & Experimentation
  • Behavioral & Leadership
  • Statistics & Math
  • Product / Decision Making
  • Product Design & Strategy
  • SWE Fundamentals

Popular interview guides

  • Meta SWE
  • Meta DS
  • Meta PM
  • Google SWE
  • Google DS
  • Google MLE
  • Amazon SWE
  • Amazon DS
  • Amazon DE
  • Apple SWE
  • Apple MLE
  • Microsoft SWE
  • Microsoft DS
  • TikTok SWE
  • TikTok DS
  • Uber SWE
  • Uber DS
  • DoorDash SWE
  • DoorDash DS
  • Airbnb SWE
  • Airbnb DS
  • LinkedIn SWE
  • LinkedIn DS
  • Netflix SWE
  • Coinbase SWE
  • Capital One DS
  • OpenAI SWE
  • Anthropic SWE

Popular question categories

  • Blind 75
  • Meta Coding
  • Google System Design
  • Amazon Coding
  • Meta Analytics
  • Google ML
  • Amazon System Design
  • Capital One SQL
  • TikTok ML
  • Meta SQL
  • Uber Analytics
  • DoorDash Coding
  • Google Coding
  • Netflix System Design
  • Airbnb Analytics
  • LinkedIn SQL