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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
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
Stripe logo
Stripe
Hard
Software EngineerNew Grad

Design a Fixed-Position Payment Command State Machine

Design the parser and object-oriented state-machine core for a payment command interface. The reported commands use a fixed number of argument positio...

Software Engineering FundamentalsLow-Level Design (OOP)Parsing & Interpreters
39
0
311 people solved
Aug 1, 2026
Jane Street logo
Jane Street
Medium
Machine Learning Engineer

Code Editor with Block Shrink and Expand (Code Folding)

Implement the core of a code editor (similar to VS Code) that supports code folding: collapsing ("shrink") and restoring ("expand") indentation-based ...

Coding & AlgorithmsData Structure Design
164
1
1630 people solved
Apr 24, 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
Aiprise logo
Aiprise
Easy
Software Engineer

Evaluate an Integer Expression String with +, -, * and Nested Parentheses

Write a function that evaluates an arithmetic expression given as a string and returns its integer value. The expression contains non-negative integer...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
19 people solved
Oct 25, 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
Pinterest logo
Pinterest
Medium
Software EngineerSenior+ Locked

Design a Large-File Upload and Analysis Flow

Design a secure large-file upload service with resumable transfers, asynchronous analysis, idempotent processing, and reliable completion notification...

System Design
33
1
320 people solved
Sep 1, 2026
ByteDance logo
ByteDance
Hard
Software Engineer

Sparse Matrix Multiplication from Coordinate Lists

Implement sparse matrix multiplication from scratch. Matrix A has n rows and m columns, matrix B has m rows and p columns, and most entries of both ar...

Coding & AlgorithmsGrids & MatricesArrays & Strings
4
0
29 people solved
Oct 13, 2026
eBay logo
eBay
Medium
Machine Learning Engineer

Multiply Two Integer Matrices of Compatible Dimensions

Given two integer matrices a and b, return their matrix product. Function Signature `python def multiply_matrices(a: list[list[int]], b: list[list[int...

Coding & AlgorithmsGrids & Matrices
1
0
15 people solved
Oct 24, 2026
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Infosys, Meta, TCS, Apple, TikTok, Oracle, Walmart Labs, Goldman Sachs, IBM, Paytm, Uber, Okta, NVIDIA, PayPal

Medium
Software Engineer

Measure the Longest Consecutive Value Run in Linear Time

Problem Return the length of the longest run of consecutive integer values present in an unsorted array. The values need not be adjacent in the input....

Coding & AlgorithmsArrays & Strings
6
1
38 people solved
Databricks logo
Databricks
Medium
Software Engineer

Lowest-Price Book Aggregator Fanning Out to Hundreds of Async Bookstores

You run a middleman service for buying books. A customer submits an ISBN, a bid price and a payment method. The system fans out a price query to sever...

System DesignSystem Design FundamentalsCaching
31
0
227 people solved
Sep 11, 2026
Glean logo
Glean
Medium
Machine Learning Engineer

AI-Paired Rate-Limited Wikipedia Crawler That Prioritizes Unseen Title Initials

This is a 75-minute assignment in which you pair with an AI coding assistant to build a crawler for Wikipedia. The round required using an assistant, ...

Software Engineering FundamentalsRate LimitingAI-Assisted Development
8
0
77 people solved
Sep 30, 2026
Apple logo
Apple
Medium
Software Engineer

Unit Ratio Queries Across Independent Unit Families with Modular Answers

There are n units of measure, numbered 0 to n - 1. The units fall into several independent families: units in the same family can be converted into on...

Coding & AlgorithmsGraphsMath & Number Theory
13
0
185 people solved
Sep 27, 2026
Airwallex logo
Airwallex
Medium
Backend Engineer

AI-Assisted Build: Tic-Tac-Toe Logic Grown Into a Frontend and Backend App

In this round you may use AI coding tools throughout: a chat assistant, in-editor completion or a coding agent. Your task is to build a working two-pl...

Software Engineering FundamentalsAI-Assisted DevelopmentSimulation & State Machines
3
0
56 people solved
Sep 16, 2026
Google logo
Google
Medium
Software Engineer

Find the nearest common manager of K employees in a reporting tree

A company's reporting structure forms a tree. Employees are numbered 0 to n - 1. Every employee except one has exactly one direct manager; the remaini...

Coding & AlgorithmsTrees
13
0
228 people solved
Sep 21, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, TCS, HCL, Infosys, Apple, Zoho, Accenture, NVIDIA, Atlassian, JPMorgan Chase, IBM, Adobe, Flipkart, Wipro, Tesla, Siemens, Uber, Goldman Sachs, Agoda, Visa, Morgan Stanley, Zoox, TikTok, Citadel, Oracle, Akamai

Easy
Software Engineer

Maximize One Chronological Stock Transaction

Problem Choose one day to buy one share and a later, different day to sell it. Given daily prices in chronological order, return the largest achievabl...

Coding & AlgorithmsGreedy
4
1
28 people solved
Google logo
Google
Medium
Product Manager

Chrome Browser Success Metrics: North Star, Funnel and Guardrails

You are a product manager on Google Chrome, Google's web browser for desktop computers and for Android and iOS devices. Describe the metrics you would...

Analytics & ExperimentationMetrics & KPIs
2
0
27 people solved
Oct 12, 2026
Amazon logo
AmazonMetaBloomberg

Also asked at Bloomberg, Google, Microsoft, Infosys, Accenture, TCS, Adobe, Oracle, DoorDash, Walmart Labs, IBM, Flipkart, Uber, Rubrik, Meesho

Medium
Software Engineer

Advance an Array to Its Next Lexicographic Order

Problem Rearrange the integer array nums in place into the next lexicographically greater arrangement of its values. If no greater arrangement exists,...

Coding & AlgorithmsArrays & StringsGreedy
1
0
25 people solved
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Answer Policy Violation Log Queries

Answer five deterministic query types over a timestamp-sorted policy violation log, including distinct-post and raw-record counts. The prompt fixes in...

Coding & Algorithms
50
0
370 people solved
Sep 4, 2026
Amazon logo
AmazonGoogleMeesho

Also asked at Meesho, Microsoft, Bloomberg, Infosys, Flipkart, Salesforce, Meta, Zulily, Zoho, TikTok, Atlassian, eBay, ServiceNow, PhonePe, HashedIn, TomTom

Medium
Software Engineer

Reach the Last Index in the Fewest Jumps

Problem You start at index 0 of the integer array jumps. From index i, choose an integer distance d and move to index i + d, provided that: - 0 <= d <...

Coding & AlgorithmsGreedyDynamic Programming
3
0
29 people solved
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