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
570
Updated
10.05.2026
11.9k 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
OpenAI logo
OpenAI
Medium
Software Engineer

Implement toy-language types and generic substitution

Problem: Toy Language Type System (Printing + Generic Resolution) You are implementing a small type system for a custom “Toy Language”. Types can be: ...

Coding & AlgorithmsParsing & Interpreters
97
1
1501 people solved
Nov 13, 2025
Mercor logo
Mercor
Medium
Software Engineer

Sorting Complexity: Beating O(n^2), Quicksort's Worst Case, and a Slower Sort

This is a verbal discussion about sorting, and no code is written. The interviewer starts from the observation that a straightforward insertion sort t...

Software Engineering FundamentalsSortingMath & Number Theory
6
0
46 people solved
May 1, 2026
Whatnot logo
Whatnot
Medium
Software Engineer Locked

Dot Product of Two Vectors (Dense, then Sparse)

This question assesses proficiency in array manipulation and algorithmic efficiency by asking for a vector dot product, first over dense arrays and th...

Coding & Algorithms
9
0
70 people solved
Jun 11, 2026
Fivetran logo
Fivetran
Easy
Software Engineer

Design a Simplified WhatsApp: Message Send and Receive, Schema, and Scaling

Design a simplified version of WhatsApp. Focus on the core messaging path: one user sends a message, and the recipient receives it. Cover the send and...

System DesignReal-Time SystemsStorage & Sharding
0
0
9 people solved
Sep 10, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Convert stack samples to trace events

Question Implement convertToTrace(samples) that, given a chronologically ordered vector of stack samples (each sample contains a timestamp and a call-...

Coding & AlgorithmsStacks & QueuesSimulation & State Machines
219
4
1293 people solved
Jul 29, 2025
Anthropic logo
Anthropic
Medium
Software EngineerSenior+

Design An AI Playground For Very Large Prompts

Design an AI playground that lets users create, edit, run, and revisit prompts. The interviewer is especially interested in how the system handles ver...

System DesignSystem Design FundamentalsFile & Media Storage
29
0
209 people solved
Apr 13, 2026
Confluent logo
Confluent
Medium
Software EngineerSenior+

Solve Signature, File, and Queue Problems

Solve the following interview-style problems: 1. Function signature matching You are given a registry of function definitions. Each function has an...

Coding & AlgorithmsData Structure DesignOperating Systems
20
0
190 people solved
Feb 22, 2026
Harvey logo
Harvey
Medium
AI Agent Locked

Build and Evaluate a Minimal Embedding-Based RAG Pipeline

Build a minimal retrieval-augmented generation pipeline with transparent ingestion, chunking, embeddings, indexing, retrieval, and prompt assembly. Ev...

ML System Design
6
1
71 people solved
Aug 14, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Find the Kth Smallest Value in a Binary Search Tree

Build a binary search tree from a breadth-first serialization and return its kth smallest value. The prompt defines one-based rank, explicit nulls, im...

Coding & Algorithms
3
0
57 people solved
Aug 26, 2026
Amazon logo
Amazon
Easy
Software Engineer

Demonstrate Project Ownership and In-Depth Investigation

Use examples from your past projects to explain how you take ownership of work and investigate a problem in depth. Describe your personal actions, the...

Behavioral & LeadershipOwnership & ExecutionAmbiguity & Decision Making
1
0
15 people solved
Aug 30, 2026
Attentive logo
Attentive
Medium
Software Engineer

Design a Product Catalog Ingested From Full Retailer Snapshots With Admin Overrides

Design a product catalog system. Retailers send their catalogs to the platform as snapshot files, users browse the resulting catalog, and platform adm...

System DesignSystem Design FundamentalsETL & Data Pipelines
0
0
5 people solved
Sep 24, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Design GPU inference request batching

Design a system that serves online model-inference requests on GPUs. Requests arrive one at a time from clients, but GPU throughput is far higher when...

ML System DesignLLM Inference & Serving
140
0
2001 people solved
Mar 13, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Lead Through Technical Difficulty and Project Conflict

Prepare one coherent example that shows how you led people through a technically difficult project, resolved a project conflict, and delivered an outc...

Behavioral & Leadership
7
0
70 people solved
Aug 4, 2026
Kikoff logo
Kikoff
Easy
Software Engineer Locked

Build a Robust Log Parser and Prefix-Operator Search

Design a tool that parses a list of server-log strings into structured records with timestamp, level, service, message, and optional user identifier. ...

Software Engineering Fundamentals
5
0
57 people solved
Jul 31, 2026
Rippling logo
Rippling
Easy
Software Engineer

Design a news aggregator system

Rippling Onsite — Two Parts This Software Engineer onsite has two parts: a system design and a short coding follow-up. Both are below. Treat them as o...

System DesignSearch & Feed SystemsRanking Models
218
0
1616 people solved
Dec 5, 2025
Baseten logo
Baseten
Hard
Software Engineer Locked

Parallelize Blocking API Calls with a Thread Pool

Replace sequential blocking API calls with a bounded thread pool while preserving each result's input association and return order. Define worker limi...

Software Engineering FundamentalsConcurrency
23
0
170 people solved
Jul 26, 2026
Figma logo
Figma
Medium
Software Engineer

Check Graph Reachability For File Permissions

You are given a graph representing simplified file permission inheritance. In part 1, the graph is directed and may contain cycles. Return whether the...

Coding & Algorithms
8
0
140 people solved
Apr 9, 2026
Anthropic logo
Anthropic
Medium
Software EngineerSenior+ Locked

Discuss Ethical Judgment and Unwanted Work

This behavioral interview question evaluates self-awareness, ethical judgment, and the ability to influence peers without relying on authority — core ...

Behavioral & LeadershipEthics & ResponsibilityLeadership & Influence
83
0
581 people solved
Jun 14, 2026
Yelp logo
Yelp
Easy
Data Scientist

Recommend a Decision After a Nonsignificant Experiment

An A/B test estimates a 2.0% relative improvement in a primary metric, with a two-sided 95% confidence interval from -0.5% to 4.5% and (p=0.12). Guard...

Analytics & Experimentation
9
0
115 people solved
Aug 27, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Find a valid dependency order

You are given n tasks labeled from 0 to n - 1 and a list of dependency pairs dependencies, where each pair [a, b] means task b must be completed befor...

Coding & AlgorithmsGraphs
22
0
261 people solved
Feb 15, 2026
Previous1...919293...597Next
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