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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
476
Companies
980
Updated
11.10.2026
476 Questions 980 Companies11.10.2026
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
Stripe logo
Stripe
Hard
Software Engineer Locked

Design a Ledger with Separate Acceptance, Limit, and Settlement States

Implement process_ledger(commands), an ordered account ledger that initializes accounts, accepts deposits, and returns comma-separated balance query r...

Software Engineering FundamentalsPayments & LedgersSimulation & State Machines
98
1
770 people solved
Sep 17, 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
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
ByteDance logo
ByteDance
Medium
Software EngineerNew Grad

Order Processes on One CPU by Shortest Ready Job

A single CPU runs a set of processes one at a time. Process i becomes ready at its arrival time and needs a fixed amount of CPU time. Once started, a ...

Coding & AlgorithmsHeaps & Priority QueuesSorting
3
0
24 people solved
Oct 16, 2026
Ramp logo
Ramp
Easy
Frontend Engineer

Build a Wordle Guess Checker with Green, Yellow and Red Letter Feedback

Build a small version of the classic Wordle word game as a browser component. A fixed secret word is checked against what the user types, and each typ...

Software Engineering FundamentalsUI Components & AccessibilityArrays & Strings
8
0
116 people solved
Sep 17, 2026
OpenAI logo
OpenAI
Medium
Applied Scientist

Extensible card-hand ranking: three of a kind, flush, pair and a discard rule

Build a small card game in code. Each player holds a hand of cards; the program ranks the hands, decides the outcome, and returns a log of the whole p...

Software Engineering FundamentalsLow-Level Design (OOP)
12
0
116 people solved
Sep 17, 2026
Databricks logo
Databricks
Medium
Software Engineer Locked

Tic-Tac-Toe Against a Deterministic Automatic Opponent

Build an automated Tic-Tac-Toe opponent with perfect-play minimax, deterministic move ties, board events, invalid attempts, and terminal-state handlin...

Coding & AlgorithmsBacktracking & RecursionSimulation & State Machines
26
0
267 people solved
Sep 6, 2026
Oracle logo
Oracle
Medium
Software Engineer

Object-Oriented Design of a Chess Game with Full Move Legality

Design a chess game. The report gives only this one-line prompt, so settle the scope with the interviewer first. In its usual object-oriented form: mo...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
3
0
26 people solved
Oct 10, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Banking System Simulation

Banking System Simulation You are building an in-memory banking system that is driven by a time-ordered stream of operations. Implement the system so ...

Coding & AlgorithmsData Structure DesignSimulation & State Machines
90
1
815 people solved
Jun 23, 2026
Circle logo
Circle
Medium
Software Engineer Locked

In-Memory Bank System With Top-N Activity Ranking and Expiring Pending Transfers

Implement an in-memory banking class in stages: create accounts, deposit and pay, rank the top n accounts by transaction activity, and support transfe...

Software Engineering FundamentalsData Structure Design
14
0
141 people solved
Sep 4, 2026
Roblox logo
Roblox
Medium
Software Engineer

Find the Longest Safe Straight-Line Movement on a Laser Grid

A board has numRows rows and numColumns columns. A laser at (row, column) destroys every cell in its row and every cell in its column. A robot starts ...

Coding & AlgorithmsSimulation & State Machines
28
0
213 people solved
Jul 4, 2026
Apple logo
Apple
Medium
Software Engineer

Days Until Poison Stops Spreading in a Plant Grid Under a K-of-8-Neighbors Rule

A field of plants is laid out as an m x n grid. A cell holding 0 is a healthy plant and a cell holding 1 is a poisoned plant. Poison spreads once a da...

Coding & AlgorithmsGrids & MatricesGraphs
11
2
119 people solved
Sep 20, 2026
Glean logo
Glean
Medium
Machine Learning Engineer

Decide If a Passenger Can Reach a Station Using Time-Indexed Train Routes and Transfers

A train schedule is a collection of trains moving between stations, where stations are named by strings. Time starts at 0. Each train is given as a li...

Coding & AlgorithmsGraphs
5
0
65 people solved
Sep 30, 2026
MongoDB logo
MongoDB
Medium
Software Engineer

Implement a Promise Class in JavaScript with then Chaining, catch and finally

Implement, in plain JavaScript and without using the built-in Promise, a class MyPromise that provides the core functionality of a promise. The report...

Software Engineering FundamentalsJavaScript & TypeScript
1
0
9 people solved
Oct 31, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Software Engineer Locked

Rotate a Square Matrix Clockwise While Both Diagonals Stay Fixed

Rotate every element of a square matrix that lies off both diagonals by 90 degrees clockwise a given number of times, leaving the main-diagonal and an...

Coding & AlgorithmsGrids & Matrices
11
0
215 people solved
Sep 17, 2026
DoorDash logo
DoorDash
Medium
Software EngineerSenior+

Build Two Interacting Services That Carry Out a Realistic Refund Flow

Implement a refund flow as two services that interact with each other to complete a refund. This is an AI-assisted coding round: an AI coding assistan...

Software Engineering FundamentalsPayments & LedgersDistributed Transactions & Idempotency
13
0
143 people solved
Sep 10, 2026
Roblox logo
RobloxCapital OneMeta

Also asked at Meta, Bloomberg, Google, TikTok, Uber, Pinterest, Visa, Braze

Medium
Software Engineer

Stabilize a Board by Simultaneous Matches

Problem On a rectangular board, positive integers identify candy types and zero denotes an empty cell. Simultaneously remove every horizontal or verti...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
4
0
34 people solved
Glean logo
Glean
Medium
Software Engineer

Object-Oriented Design of a Two-Player Chess Game: Board, Pieces, Moves, Game End

In an object-oriented design phone screen, the question was: design chess. Design the classes for a two-player chess game that can be played to comple...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
1
0
35 people solved
Sep 30, 2026
Optiver logo
Optiver
Hard
Software EngineerIntern

Implement a Multicore Overheat Prevention Controller

Problem Simulate a firmware controller that prevents a multicore processor from overheating. Each core has a configured workload, all cores share pass...

Coding & AlgorithmsSimulation & State Machines
103
0
1495 people solved
Apr 21, 2026
Stripe logo
Stripe
Medium
Software Engineer Locked

Register Data Centers and Route to the Nearest Healthy Region

Process a deterministic command language for registering data centers, changing health, measuring Haversine distance, and routing to healthy regions, ...

Coding & AlgorithmsSimulation & State Machines
105
2
943 people solved
Aug 13, 2026
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