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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
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
Morgan Stanley logo
Morgan Stanley
Medium
Data Scientist Locked

Explain Your Job Search and Interest in a Risk Data Role

Build a concise answer for why you are changing jobs and why a Morgan Stanley risk data role fits your next step. The guide shows how to use verified ...

Behavioral & Leadership
1
0
21 people solved
Jul 10, 2026
Decagon logo
Decagon
Medium
Software Engineer Locked

Design a Real-Time AI Voice System

This question evaluates system-level engineering skills for real-time conversational AI, covering audio ingestion, speech recognition, dialogue orches...

ML System DesignReal-Time SystemsLLM Applications
33
0
243 people solved
Feb 17, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Implement staircase printing and distributed mode/median

Problem A: Print a “staircase” pattern Implement a function that prints a staircase with n rows. Input - An integer n (n >= 1) Output - Print n lines....

Coding & Algorithms
76
0
1038 people solved
Nov 19, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Read Current and Historical Field Values with Expiration

Process key-and-field database writes, TTL expiration, deletion, and historical reads while preserving past values without rolling back current state.

Coding & AlgorithmsData Structure DesignBinary Search
4
0
78 people solved
Sep 1, 2026
Temporal logo
Temporal
Medium
Software Engineer Locked

Implement Concurrent Any-True Shot

This question evaluates proficiency in concurrent programming, focusing on coordination, synchronization, early termination, and best-effort cancellat...

Coding & AlgorithmsConcurrency
6
0
108 people solved
Apr 3, 2026
Stripe logo
Stripe
Medium
Software Engineer Locked

Generate a ride map image via POST API

This question evaluates a candidate's competency in geospatial data processing and HTTP API integration, including JSON parsing, coordinate batching f...

Software Engineering FundamentalsAPI Integration & HTTP Clients
58
0
697 people solved
Jan 22, 2026
OpenAI logo
OpenAI
Medium
Data ScientistSenior+

Write SQL for post-trial conversion cohorts

Using the schema below, write SQL to compute, for users first exposed between 2025‑06‑01 and 2025‑06‑30 (inclusive), the intent‑to‑treat paid conversi...

Data Manipulation (SQL/Python)SQLExperiment Analysis & Readout
9
0
130 people solved
Oct 13, 2025
OpenAI logo
OpenAI
Hard
Software Engineer

Design a scalable payment system

Design a scalable payment system Design a scalable payment system. The system must support both peer-to-peer money movement between users and merchant...

System DesignPayments & LedgersDistributed Transactions & Idempotency
109
0
784 people solved
Jul 15, 2025
Headway logo
Headway
Medium
Software EngineerSenior+ Locked

Design a Rental Search and Booking Platform from Startup to Scale

Design a short-term rental search and booking platform that can evolve from a startup architecture to large-scale traffic. Balance fast, possibly stal...

System Design
14
0
103 people solved
Jun 15, 2026
Flexport logo
Flexport
Hard
Software Engineer Locked

Design Container Assignment with Incompatible Goods

Design a shipment-planning service that assigns goods to ocean containers under weight, volume, and incompatibility constraints. Cover versioned plans...

System Design
6
0
54 people solved
Jun 28, 2026
Harvey logo
Harvey
Medium
Software Engineer Locked

Design a RAG question-answering system

This question evaluates system design and machine-learning engineering competencies for building Retrieval-Augmented Generation (RAG) systems, includi...

System DesignRetrieval-Augmented GenerationLLM Applications
20
0
378 people solved
Mar 1, 2026
MongoDB logo
MongoDB
Medium
Software Engineer Locked

Debug a slow concurrent network server under load

This question evaluates debugging and performance-tuning skills for concurrent network servers, focusing on event-loop behavior, I/O multiplexing, blo...

Software Engineering FundamentalsDebuggingOperating Systems
31
0
213 people solved
Jan 22, 2026
eBay logo
eBay
Medium
Software EngineerSenior+

Assign Ads to Browser Positions

Implement a function that assigns ads to browser positions for a single user. You are given: - positions: a list of browser position identifiers, such...

Coding & Algorithms
2
0
46 people solved
Apr 13, 2026
Databricks logo
Databricks
Medium
Software Engineer

Implement Snapshot Iterator Without Order Guarantees

Design and implement a mutable collection that supports snapshot iteration. The collection stores unique values and supports the following operations:...

Coding & Algorithms
13
0
118 people solved
Feb 16, 2026
Amazon logo
Amazon
Easy
Software Engineer Locked

Implement Regular Expression Matching

Implement full-string regular expression matching for lowercase letters, dot wildcards, and star repetition. Handle empty strings and zero-copy star c...

Coding & Algorithms
2
0
33 people solved
Jul 4, 2026
ByteDance logo
ByteDance
Medium
Senior SDE, Quality Platform & AI Test AutomationSenior+ Locked

Design an Agent-Orchestrated QA Pipeline from Requirements to Test Report

Design an agent-orchestrated QA pipeline that turns requirements into traceable test cases, data, scripts, execution evidence, and reports through typ...

ML System Design
1
0
16 people solved
Aug 10, 2026
Rippling logo
Rippling
Medium
Software Engineer

Compute peak concurrent drivers in 24 hours

Given delivery intervals across multiple drivers, compute the maximum number of distinct drivers simultaneously active within the last 24 hours from a...

Coding & AlgorithmsIntervals & Scheduling
25
0
264 people solved
Sep 6, 2025
Sig logo
Sig
Easy
Data Scientist

Deduce Cat Counts from Conditional Truth Rules

Deduce Cat Counts from Conditional Truth Rules Three people, A, B, and C, own distinct positive integer numbers of cats. A speaker tells the truth whe...

Statistics & Math
2
0
20 people solved
Aug 16, 2026
Uber logo
Uber
Medium
Software Engineer

Solve Prime Jumps and Pipeline Scaling

An online assessment contains two independent coding problems. Solve both. Problem 1: Prime-Constrained Score Jump You are given an integer array scor...

Coding & Algorithms
9
0
94 people solved
Jan 30, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Detect duplicate files efficiently

You are given access to a very large file system containing file paths and read access to file contents. Design an algorithm to identify groups of fil...

Coding & AlgorithmsFile & Media Storage
60
1
1064 people solved
Sep 6, 2025
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