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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
Walmart Labs logo
Walmart Labs
Medium
Software Engineer

Debug Spring Boot Profiles: Missing-Credential Exception and Unapplied Default Value

The Spring Boot backend section of a full-stack online assessment gives you a small Spring Boot service together with its tests. The section tests how...

Software Engineering FundamentalsDebugging
1
0
10 people solved
Nov 7, 2026
Glean logo
Glean
Medium
Software Engineer

Find the k-th Largest Value Across Two Sorted Arrays Without Fully Merging Them

You are given two integer arrays a and b, each sorted in non-decreasing order, and an integer k. Return the k-th largest value in the combined collect...

Coding & AlgorithmsBinary Search
4
0
60 people solved
Sep 30, 2026
Cresta logo
Cresta
Medium
Software Engineer Locked

Job Dispatcher with Least-Loaded, Round-Robin Assignment and Executor Removal

A coding exercise to implement Executor and JobDispatcher classes that send each integer job ID to the executor with the fewest pending jobs, breaking...

Software Engineering FundamentalsData Structure DesignLow-Level Design (OOP)
12
0
127 people solved
Sep 12, 2026
Cresta logo
Cresta
Medium
Software Engineer

Recorded Walkthrough of a Past AI Project and Your Own Role in It

Record a short video in which you walk through an AI project you worked on in the past: what the project is and does, and which parts of it you were p...

Behavioral & LeadershipProject Deep Dive
4
0
46 people solved
Oct 6, 2026
Stripe logo
Stripe
Medium
Software EngineerSenior+ Locked

Design a String-Rule Validator for Transaction Records

Specify transaction validation rules, parse them safely, evaluate name restrictions, and distinguish malformed input from ordinary rule rejection.

Software Engineering FundamentalsParsing & InterpretersTesting & Quality
30
0
329 people solved
Sep 11, 2026
Amazon logo
Amazon
Hard
Software Engineer AI

Circular Drone Hub Delivery Route

A drone delivery network is laid out as a ring of n hubs, numbered 0, 1, ..., n - 1. Each hub is connected by a direct air corridor to its two neighbo...

Coding & AlgorithmsArrays & Strings
85
0
952 people solved
Jun 28, 2026
Spotify logo
Spotify
Hard
Software Engineer

Find the Nearest Charging Station for Every Vehicle

Given a rectangular grid whose cells are C (charging station), V (vehicle), or . (empty), return the shortest distance from every vehicle to a chargin...

Coding & AlgorithmsGrids & Matrices
2
0
20 people solved
Oct 18, 2026
Crowdstrike logo
Crowdstrike
Medium
Software Engineer

Filter Products by Optional Category and Price Criteria Combined with AND or OR

A catalog page lets a user narrow a pool of products with one filtering rule. Implement a lightweight filter that applies a single rule, with an opera...

Software Engineering FundamentalsLow-Level Design (OOP)Testing & Quality
1
0
17 people solved
Oct 10, 2026
ByteDance logo
ByteDance
Medium
Software EngineerNew Grad

Minimum Number of Rooms to Host All Meetings

Meetings are held in a set of identical rooms. Each meeting needs one room for its whole duration, and a room can host only one meeting at a time. Ret...

Coding & AlgorithmsIntervals & SchedulingHeaps & Priority Queues
2
0
25 people solved
Oct 16, 2026
Retell AI logo
Retell AI
Easy
Software Engineer

Implement a Kafka-Style Message Partitioner That Supports Adding Partitions

Implement, in an object-oriented style, the part of a Kafka-like message log that places messages into partitions. A topic has a number of partitions,...

Software Engineering FundamentalsPartitioning & Consistent HashingLow-Level Design (OOP)
2
0
50 people solved
Sep 5, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Respond to a Hypothetical Loss of Employer Equity Value

Answer the hypothetical of employer stock falling to zero with honest motivation, fact-finding, team responsibility, and a realistic personal decision...

Behavioral & LeadershipMotivation & FitAmbiguity & Decision Making
143
1
1199 people solved
Sep 12, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Implement a Random Forest Classifier from Scratch

Implement a random forest classifier by hand: write the decision trees and the ensemble yourself instead of calling a machine learning library's tree ...

Machine LearningML CodingSupervised Learning
1
0
17 people solved
Oct 18, 2026
Uber logo
Uber
Medium
Product Manager

Uber Product Design: Build an AI-Powered Product for Riders or Drivers

You are interviewing for a product manager role at Uber. Design an AI-powered product for a ride-sharing app: choose who it serves and the problem it ...

Product Design & StrategyAI Product ManagementProduct Sense
3
0
37 people solved
Oct 19, 2026
OpenAI logo
OpenAI
Medium
Software Engineer

Design a Sora-Style Video Generation Service with Fair Queueing and Cancellation

Design the backend of a text-to-video generation product in the style of Sora. A user submits a text prompt with generation settings, the request beco...

System DesignJob Scheduling & WorkflowsGPU Infrastructure
20
0
183 people solved
Sep 20, 2026
Amazon logo
AmazonBloombergGoogle

Also asked at Google, Microsoft, Uber, Meta, TikTok, Citadel, Nuro, Snapchat, PhonePe, Rippling, Flipkart, Goldman Sachs

Medium
Software EngineerSenior+

Answer a large batch of variable-ratio queries from division equations

You are given a list of equations between variables. Equation i is equations[i] = [a, b] together with a real number values[i], and it states that a /...

Coding & AlgorithmsGraphs
17
2
145 people solved
Databricks logo
Databricks
Medium
Software Engineer

Design a Visa-Style Card Payment Processing System

Design a Visa-style card payment system. The report records only the prompt. It can be scoped two ways, and choosing and defending a scope is part of ...

System DesignPayments & LedgersDistributed Transactions & Idempotency
17
0
234 people solved
Sep 11, 2026
Flexport logo
Flexport
Medium
Software Engineer

Largest Island Area in a Binary Grid Without Modifying the Input

Given a rectangular grid in which every cell is either land (1) or water (0), return the area of the largest island. An island is a group of land cell...

Coding & AlgorithmsGrids & Matrices
1
0
12 people solved
Nov 5, 2026
Snorkel logo
Snorkel
Medium
Software Engineer Locked

Design SnapshotMap with Sparse Histories and Constant-Time Snapshots

Design SnapshotMap with constant-time snapshots, sparse per-key histories, binary-search reads, tombstones, write coalescing, and precise complexity g...

Software Engineering FundamentalsData Structure DesignBinary Search
20
1
140 people solved
Sep 6, 2026
Intuit logo
Intuit
Medium
Software EngineerSenior+

Design a walk-in service scheduler with VIP priority and a 2:1 VIP-to-regular rate

Design and implement a service scheduler for an in-person customer service center, similar to a walk-in tech support counter in a retail store. A cust...

Software Engineering FundamentalsLow-Level Design (OOP)Stacks & Queues
0
0
7 people solved
Nov 2, 2026
Cresta logo
Cresta
Medium
Software Engineer

Design an Evaluation Platform for AI Agents Across Prompt and Model Changes

Design a system for evaluating AI agents. The users of the system are teams that develop AI agents, for example agents that automatically analyze cont...

ML System DesignSystem Design FundamentalsLLM Evaluation
18
0
135 people solved
Sep 20, 2026
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