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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
11.9k
Companies
569
Updated
10.02.2026
11.9k Questions 569 Companies10.02.2026
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
OpenAI logo
OpenAI
Medium
Software Engineer

Generate Data Labeling Schedules

A data labeling platform manages tasks, AI models, and human annotators. Each entity has a 1-indexed string ID. You are given four integers: totalTask...

Coding & AlgorithmsJob Scheduling & WorkflowsGreedy
62
0
438 people solved
Apr 28, 2026
Airbnb logo
Airbnb
Medium
Machine Learning EngineerSenior+

Generate Customer-Support Instructions from Company Policies

Design a RAG system that helps customer-support personnel resolve user issues. It reads company policies and produces step-by-step instructions for th...

ML System DesignRetrieval-Augmented GenerationApplication Security
1
0
22 people solved
Sep 4, 2026
Together AI logo
Together AI
Medium
Software Engineer Locked

Schedule GPU Pods and Drain a Node

Determine which GPU nodes can accept a request and whether every pod from a drained node can be reassigned without moving existing workloads. Preserve...

Coding & AlgorithmsBacktracking & RecursionGPU Infrastructure
17
0
209 people solved
Jul 13, 2026
Apple logo
Apple
Medium
Software Engineer

Simulate a Fixed-Capacity Least-Recently-Used Cache over a Stream of Operations

Implement a key-value cache that holds at most capacity entries and, when it is full, evicts the entry that was used least recently. Run the cache ove...

Coding & AlgorithmsData Structure Design
0
0
10 people solved
Sep 17, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+ Locked

Find the Most Frequent Request IDs

Find the most frequent request IDs in a large event stream and return the top k in ranked order. The task tests frequency counting, deterministic tie-...

Coding & AlgorithmsHeaps & Priority Queues
29
0
264 people solved
Aug 22, 2026
Waymo logo
Waymo
Medium
Software Engineer

Lowest Horizontal Cut That Splits Square Cakes Into Equal Total Areas

Several square cakes sit on a table, each with its sides parallel to the table's edges. You make one long horizontal cut across the whole table, along...

Coding & AlgorithmsIntervals & Scheduling
3
0
28 people solved
Sep 10, 2026
ByteDance logo
ByteDance
Medium
Software EngineerIntern

Clockwise Spiral Traversal of a Matrix With O(1) Extra Space and No Mutation

Given an m x n integer matrix, return all of its elements in spiral order. Start at the top-left cell, move right along the top row, then down the rig...

Coding & AlgorithmsGrids & Matrices
1
0
15 people solved
Sep 25, 2026
Capital One logo
Capital One
Easy
Data Analyst Locked

Analyze Mission Outcomes and Allocate Response Units

Solve a multi-part data analysis case using mission outcomes and response-unit history. Compute and interpret win rates, compare rest-time groups, han...

Data Manipulation (SQL/Python)Business Case AnalysisSampling & Estimation
44
0
553 people solved
Jul 8, 2026
Upstart logo
Upstart
Medium
Software Engineer

Scale Recipe Quantities Without Changing Product Descriptions

Scale a one-person recipe for nb_persons people. Each ingredient line begins with a positive integer quantity, followed by one space and a product des...

Coding & AlgorithmsArrays & Strings
1
0
23 people solved
Sep 12, 2026
Airbnb logo
Airbnb
Medium
Data Engineer

Find Hosts Meeting Listing, Rating, and Review-Coverage Rules

Find hosts who meet a super-host qualification rule involving listing count, average rating, and recent review coverage. Input Tables listings | Colum...

Data Manipulation (SQL/Python)SQL
4
0
34 people solved
Sep 4, 2026
Decagon logo
Decagon
Hard
Software Engineer Locked

Design a Space-Efficient Versioned Recipe Shopping Cart

Design a space-efficient versioned shopping cart that aggregates recipe ingredients, evaluates discounts, records every successful mutation, and can c...

Software Engineering FundamentalsData Structure Design
33
0
374 people solved
Jul 17, 2026
Rippling logo
Rippling
Medium
Software Engineer Locked

Design a Hotel Search and Reservation System

Create a hotel search and reservation architecture spanning discovery, date-range availability, quotes, booking, cancellation, and lookup. The design ...

System DesignSystem Design FundamentalsDistributed Transactions & Idempotency
30
0
395 people solved
Jul 22, 2026
Amazon logo
Amazon
Medium
Frontend EngineerNew Grad Locked

Design a Debounced Product Search Box

Build a debounced product search experience with controlled input, ten backend-ranked results, cancellation and sequence guards, caching, keyboard nav...

Software Engineering Fundamentals
10
0
87 people solved
Aug 22, 2026
Confluent logo
Confluent
Medium
Software Engineer

Check Whether a Partially Filled 9x9 Sudoku Board Is Valid

You are given a 9 x 9 Sudoku board in which some cells are filled with digits and the rest are empty. Determine whether the filled cells are consisten...

Coding & AlgorithmsGrids & Matrices
1
0
15 people solved
Sep 12, 2026
Citadel logo
Citadel
Medium
Software EngineerIntern Locked

Return a Valid Dependency Order for Named Tasks

Solve a named-task dependency graph with deterministic topological sorting and explicit cycle detection. Learn to include dependency-only tasks, dedup...

Coding & AlgorithmsGraphs
36
0
431 people solved
Aug 13, 2026
Stripe logo
Stripe
Medium
Software Engineer AI

Assign Reviewers from Changed Files

Write a Java program that helps automatically assign a code reviewer after a pull request is opened. You are given: 1. A local Git repository path. 2....

Coding & AlgorithmsArrays & Strings
41
0
338 people solved
Apr 29, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Consistent Hashing Ring with Virtual Nodes for Shard Rebalancing

This question evaluates a candidate's ability to design and implement a consistent hashing ring with virtual nodes for distributing keys across shards...

Coding & AlgorithmsPartitioning & Consistent HashingData Structure Design
34
0
374 people solved
Jun 26, 2026
Shopify logo
Shopify
Medium
Machine Learning Engineer

Build an Automatic Refund Decision System in a Pair-Programming Session

Build a small automatic refund system for an online store. Refund requests arrive against existing orders, and the system must decide, without a human...

Software Engineering FundamentalsPayments & LedgersDistributed Transactions & Idempotency
1
0
19 people solved
Sep 9, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Filter Open Restaurants Through Existing Domain APIs

Filter restaurants through existing domain APIs so every result is both within the requested city and currently open. Practice reading only the needed...

Software Engineering FundamentalsAPI Integration & HTTP Clients
22
0
178 people solved
Aug 13, 2026
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Why Work on AI Safety

Build a mission-driven AI-safety answer that connects concrete risks, engineering controls, personal contribution, and honest uncertainty.

Behavioral & Leadership
6
0
95 people solved
Aug 28, 2026
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