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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
Coinbase logo
Coinbase
Medium
Data Scientist

Show culture add at Coinbase

Behavioral Prompt — Culture Add Examples for Coinbase Values Context: You are interviewing for a Data Scientist role in a technical screen focused on ...

Behavioral & LeadershipMotivation & FitConflict & Collaboration
8
0
113 people solved
Oct 13, 2025
J.P. Morgan logo
J.P. Morgan
Medium
Product Manager

Design a Feature to Get More Clients Integrating via J.P. Morgan's Payments API Portal

You are the product manager for J.P. Morgan's Payments Developer Portal, where client engineers find, test and integrate the bank's payments APIs. Des...

Product Design & StrategyPlatform & API ProductsProduct Design & Improvement
1
0
9 people solved
Nov 25, 2025
Adobe logo
Adobe
Hard
Software Engineer

Design file-embedding storage system

Design file-embedding storage system System Design: Multimodal Embedding Service for User Uploads Context You are designing a backend service that, fo...

ML System Design
21
0
106 people solved
Aug 4, 2025
Google logo
Google
Hard
Software Engineer

Shuffle array using random integer API

You are given an array nums of length n representing a deck of distinct cards. You do not have access to a built-in shuffle function, but you are give...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
10
0
145 people solved
Dec 8, 2025
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Implement an IPv4 Range Iterator

This question evaluates implementing iterative data structures and range-handling algorithms alongside numeric representation of IPv4 addresses and bi...

Coding & AlgorithmsData Structure DesignIntervals & Scheduling
7
0
118 people solved
Jan 29, 2026
UiPath logo
UiPath
Medium
Machine Learning Engineer

Implement cocktail shaker sort and analyze

Implement the cocktail shaker sort (bidirectional bubble sort) for an array of integers. Optimize it with early termination and shrinking bounds, and ...

Coding & Algorithms
8
0
69 people solved
Sep 6, 2025
Adia logo
Adia
Easy
Data Scientist Locked

Compute Score Difference in Reversing Array Game

This question evaluates array manipulation and stateful simulation skills, parity-based control flow reasoning, and the ability to analyze time comple...

Coding & Algorithms
2
0
31 people solved
May 25, 2026
Meta logo
Meta
Easy
Data Scientist Locked

Convert multi-currency revenue to USD totals

This question evaluates a candidate's competency in converting multi-currency revenue into USD totals by aligning event dates with FX rates, handling ...

Data Manipulation (SQL/Python)SQLMetrics & KPIs
4
0
56 people solved
Feb 16, 2026
Apple logo
Apple
Easy
Data Scientist Locked

Investigate cross-country engagement and ads experiments

This Analytics & Experimentation (Data Scientist) question evaluates skills in experiment design and causal inference, metric definition and trade-off...

Analytics & ExperimentationMetrics & KPIsExperiment Design (A/B Testing)
12
0
130 people solved
Aug 24, 2025
Square logo
Square
Easy
Software Engineer Locked

List the Two-by-Two Blocks Covering Each Black Cell

List every in-bounds two-by-two block covering each black cell in a sparse grid, with explicit boundary behavior and canonical ordering.

Coding & AlgorithmsGrids & MatricesSorting
4
0
38 people solved
Jun 15, 2026
Snapchat logo
Snapchat
Medium
Software EngineerSenior+

Engineering Manager Scenarios: Promotion Cases, Team Conflict and Performance Plans

You are interviewing for an engineering manager role, and this round focuses on people management: promotions, conflict and performance improvement pl...

Behavioral & LeadershipMentoring & Team GrowthConflict & Collaboration
0
0
14 people solved
Jan 20, 2026
Coinbase logo
Coinbase
Medium
Software Engineer

Solve restaurant path and order event tasks

You are given two independent coding tasks. Task 1: Shortest paths in a restaurant grid Context: A restaurant is represented as a 2D grid. The waiter ...

Coding & AlgorithmsDynamic ProgrammingDistributed Transactions & Idempotency
31
0
250 people solved
Dec 8, 2025
Meta logo
Meta
Hard
Software Engineer

Design user top-10 songs service

Design user top-10 songs service Design a Service to Compute Each User's Top 10 Songs Context You are designing a backend service for a large-scale mu...

System Design
3
0
51 people solved
Aug 7, 2025
Fidelity logo
Fidelity
Medium
Software Engineer

Write good tests and define integration tests

Write good tests and define integration tests Test Design: Definitions, Trade-offs, and Best Practices Context You're building a small service for a t...

Software Engineering Fundamentals
8
0
89 people solved
Jul 31, 2025
ByteDance logo
ByteDance
Medium
Software Engineer Locked

Evaluate an Integer Arithmetic Expression with Parentheses

Evaluate a long integer expression with parentheses, whitespace, binary arithmetic, and unary signs without calling a language evaluator. Respect prec...

Coding & Algorithms
2
0
29 people solved
Jun 23, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a distributed crossword fill solver

This question evaluates understanding of distributed systems, constraint-satisfaction modeling, scalable search and parallelization, along with fault ...

System DesignSystem Design FundamentalsBacktracking & Recursion
37
0
550 people solved
Jan 17, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Compute task order with prerequisites

Given an integer n representing tasks labeled 0..n-1 and a list of prerequisite pairs (a, b) meaning b must be completed before a, return any valid or...

Coding & AlgorithmsGraphs
15
0
131 people solved
Aug 14, 2025
Amazon logo
Amazon
Hard
Software Engineer

Design VPC, IP plan, management, storage, SSO

Design VPC, IP plan, management, storage, SSO System Design: Multi‑Layer VPC, IP Planning for 2,000 Servers, Fleet Management, Shared Storage, and SSO...

System Design
12
0
90 people solved
Aug 10, 2025
Meta logo
Meta
Hard
Software Engineer

Implement, Debug, and Optimize a React Table

Implement, Debug, and Optimize a React Table React Table Component — Design, Implementation, and Performance Context: You are building a reusable Reac...

Software Engineering Fundamentals
10
0
90 people solved
Aug 1, 2025
Instacart logo
Instacart
Medium
Software Engineer Locked

Make a Variable Resolver Safe for Production Use

Analyze variable-resolution complexity and improve stack safety, validation, cycle detection, error reporting, caching, and update consistency.

Software Engineering FundamentalsCode Quality & MaintainabilityGraphs
1
0
25 people solved
Sep 11, 2026
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