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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
Google logo
Google
Easy
Software Engineer

Find largest digit-sharing subset

You are given an array of N integers. Each integer has exactly two decimal digits (i.e., each element is between 10 and 99 inclusive). You want to cho...

Coding & AlgorithmsArrays & Strings
17
0
206 people solved
Dec 8, 2025
Dave logo
Dave
Easy
Machine Learning Engineer Locked

Own and Resolve a Bug in Production

Prepare a production-bug story that shows impact scoping, direct ownership, reversible containment, root-cause analysis, correction, and verified reco...

Behavioral & Leadership
1
0
10 people solved
Jun 27, 2026
Uber logo
Uber
Medium
Software Engineer Locked

Design mkdir and ls for a Basic File System

Review a clean object model and path-resolution contract for implementing mkdir and ls in a basic file system.

Software Engineering Fundamentals
1
0
26 people solved
Aug 22, 2026
Capital One logo
Capital One
Medium
Software Engineer

Implement deposit, withdraw, and transfer in a class

Problem Implement a class AccountService that supports basic money operations on accounts. Operations - deposit(accountId, amount) - withdraw(accountI...

Coding & AlgorithmsLow-Level Design (OOP)Concurrency
18
0
183 people solved
Dec 25, 2025
Coinbase logo
Coinbase
Medium
Data Scientist

Solve Aptitude Test: Logical, Numerical, Verbal Reasoning

Scenario Pre-employment aptitude screen assessing logical, numerical and verbal reasoning within a strict time limit Question You have 15 minutes to s...

Coding & Algorithms
112
0
406 people solved
Jul 12, 2025
DoorDash logo
DoorDash
Medium
Data Scientist Locked

Evaluate a Bike Dasher Program with a Controlled Experiment

Evaluate a bicycle courier program with a decision-focused marketplace experiment. The case covers pickup dwell-time measurement, success and guardrai...

Analytics & ExperimentationExperiment Design (A/B Testing)Causal Inference
11
0
173 people solved
Jul 18, 2026
Pinterest logo
Pinterest
Hard
Machine Learning Engineer Locked

Bias-Variance Tradeoff and Vanishing Gradients in Feedforward Networks

This question evaluates conceptual understanding of the bias-variance tradeoff and the vanishing-gradient problem in deep feedforward networks, two co...

Machine LearningML FundamentalsNeural Networks & Training
12
0
163 people solved
Jun 12, 2026
Abnormal Ai logo
Abnormal Ai
Medium
Software Engineer Locked

Extensible Security-Event Pipeline: Rule Suppression and Plugin-Based Enrichment

This question evaluates a candidate's ability to design extensible, plugin-based software architecture for a multi-tenant processing pipeline. It test...

Software Engineering Fundamentals
3
0
61 people solved
Jun 14, 2026
Robinhood logo
Robinhood
Medium
Software Engineer

Implement Calendar Layout and String Packing

The interview reportedly included two separate coding exercises: 1. Day-view calendar layout - You are given a list of events for a single day. Eac...

Coding & AlgorithmsGreedyIntervals & Scheduling
6
0
111 people solved
Mar 16, 2026
Coinbase logo
Coinbase
Medium
Backend EngineerSenior+ Locked

Implement a Stateful Trading Order Manager

Build a stateful trading order manager with deterministic command results, lifecycle transitions, bulk cancellation, and live-order display. Assign us...

Coding & Algorithms
6
0
53 people solved
Jun 12, 2026
Scale AI logo
Scale AI
Medium
Software Engineer Locked

Implement a Task Processor

This question evaluates understanding of priority-based scheduling and dependency resolution, focusing on data structures and graph-ordering concepts ...

Coding & AlgorithmsData Structure DesignHeaps & Priority Queues
42
0
366 people solved
Feb 27, 2026
Robinhood logo
Robinhood
Medium
Software Engineer

Design a Photo Management Service

Design a photo management system where users can upload photos, view them later, and organize them into albums. The system should support creating alb...

System DesignFile & Media StorageSystem Design Fundamentals
33
0
257 people solved
Mar 16, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Answer Hiring Manager Behavioral Questions

This question assesses a software engineer's behavioral competencies across three dimensions: technical depth, interpersonal conflict resolution, and ...

Behavioral & LeadershipProject Deep DiveConflict & Collaboration
45
0
335 people solved
May 30, 2026
Uber logo
Uber
Medium
Machine Learning Engineer

Implement a Referral Revenue Tracker

Implement an in-memory revenue tracking system for customers in a referral network. Each customer has their own direct revenue. A customer may also ha...

Coding & AlgorithmsTreesData Structure Design
12
0
125 people solved
Apr 19, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Answer Amazon-style leadership deep dives

Behavioral / Leadership Prompt (Principal level) Prepare to answer deep-dive leadership questions with heavy follow-ups. Scenarios to cover - A failed...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
20
0
405 people solved
Jan 6, 2026
Vanta logo
Vanta
Easy
Software Engineer Locked

Implement a Unique Lines Command

This question evaluates mastery of file I/O, streaming algorithms, stateful line processing, and memory-efficient handling of large inputs, situating ...

Coding & Algorithms
12
1
111 people solved
May 25, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Find the Best Commute Mode

This question evaluates competency in grid-based pathfinding, graph traversal, and multi-criteria optimization of path time and cost within the Coding...

Coding & Algorithms
9
0
70 people solved
May 17, 2026
Anthropic logo
Anthropic
Hard
Software Engineer

Assess an AI Research Organization and Explain Your Fit

Prepare an evidence-based explanation of your interest in an AI research organization. Compare it with other AI labs, assess a recent action it took, ...

Behavioral & LeadershipMotivation & FitAmbiguity & Decision Making
1
0
28 people solved
Aug 19, 2026
Google logo
Google
Medium
Software Engineer

Maximize Boundary-Difference Subarray Sum

Given an integer array nums and an integer k, find the maximum possible sum of a non-empty contiguous subarray whose first and last elements differ by...

Coding & Algorithms
13
0
92 people solved
Apr 11, 2026
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
108
0
782 people solved
Jul 15, 2025
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