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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.2k
Companies
569
Updated
10.14.2026
12.2k Questions 569 Companies10.14.2026
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
Amazon logo
Amazon
Medium
Software Engineer

Implement LRU cache with O(1) ops

Implement LRU cache with O(1) ops Design and implement a fixed-capacity cache supporting get(key) -> value and put(key, value) in O( 1) average time. ...

Coding & Algorithms
9
0
103 people solved
Aug 9, 2025
Uber logo
Uber
Medium
Software Engineer

Simulate fixed-shape tiling on a grid

You are given an empty n-by-m grid and a list of tile patterns, patterns[0..k-1]. Each pattern is a binary matrix (1 = filled cell, 0 = hole) and must...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
12
0
125 people solved
Sep 6, 2025
Morgan Stanley logo
Morgan Stanley
Medium
Data Scientist Locked

Explain Your Risk Analytics Work to a Recruiter

Practice a recruiter-ready explanation of risk analytics work that starts with the decision, translates methods into plain language, and makes individ...

Behavioral & Leadership
1
0
20 people solved
Jul 10, 2026
Scale AI logo
Scale AI
Medium
Software Engineer

Describe a challenging project

Behavioral Question Describe one project you worked on that was particularly challenging. Please cover: - Context: What was the goal and your role/own...

Behavioral & LeadershipProject Deep Dive
20
0
307 people solved
Feb 11, 2026
DoorDash logo
DoorDash
Easy
Software Engineer Locked

Compute Courier Delivery Pay

This question evaluates a candidate's ability to work with time-interval arithmetic, interval union/overlap reasoning, and aggregation of time-based p...

Coding & Algorithms
9
0
102 people solved
Apr 12, 2026
Liftoff logo
Liftoff
Medium
Software Engineer

Parse and expand an IPv6 address

Implement an IPv6 address parser/normalizer. You are given a string s that may represent an IPv6 address using standard notation: - Up to 8 groups (“h...

Coding & Algorithms
8
0
62 people solved
Feb 26, 2026
Netflix logo
Netflix
Medium
Data Scientist

Determine Maximum Consecutive Order Days Per User

Determine Maximum Consecutive Order Days Per User orders +----+---------+------------+ | id | user_id | order_date | +----+---------+------------+ | ...

Data Manipulation (SQL/Python)SQL
67
0
180 people solved
Jul 12, 2025
Upstart logo
Upstart
Easy
Data Scientist

Implement factorial and count trailing zeros

Answer the following coding questions in Python. 1) Implement factorial Implement a function factorial(n) that returns \(n!\) for a non-negative integ...

Coding & AlgorithmsMath & Number Theory
10
0
165 people solved
Dec 9, 2025
Netflix logo
Netflix
Medium
Software Engineer

Implement TTL Cache and Tree Balance Reporting

Complete both coding tasks. Task A: Time-limited cache Design and implement an in-memory cache where every key expires after a time-to-live duration. ...

Coding & Algorithms
7
0
55 people solved
Apr 17, 2026
Amazon logo
Amazon
Medium
Software Engineer

Solve Rotting Oranges and Bus Walk Reachability

Question LeetCode 994. Rotting Oranges. 2) Given start and end grid coordinates, an integer k (maximum walking distance), and a bidirectional graph of...

Coding & Algorithms
9
0
84 people solved
Aug 4, 2025
DoorDash logo
DoorDash
Medium
Machine Learning Engineer

How would you target promotions to grow consumers?

ML / Growth Scenario You own a system that sends promotion offers (e.g., "$10 off", "free delivery") to consumers to increase growth. Prompt Design an...

Machine LearningPersonalizationCausal Inference
18
0
174 people solved
Oct 17, 2025
Intuit logo
Intuit
Easy
Software Engineer

When should products use AI?

A product-oriented interview asks you to discuss AI adoption in software products. Explain how you would decide whether a feature should use AI or a t...

Machine LearningAI Product Management
18
0
140 people solved
Apr 2, 2026
Home Depot logo
Home Depot
Easy
Product Analyst

Decide whether to keep a negative-margin promotion

A retail team is running a Mulch promotion. The promotion currently has a negative unit margin (i.e., discounted price is below unit cost), so on the ...

Analytics & Experimentation
4
0
52 people solved
Feb 14, 2026
Stripe logo
Stripe
Medium
Data Scientist

Design metrics and write SQL for a case

Case: Measure the impact of outreach on subsequent purchases and diagnose anomalies. Define your primary metric and write SQL. Schema and tiny samples...

Data Manipulation (SQL/Python)
6
0
48 people solved
Oct 13, 2025
Electronic Arts logo
Electronic Arts
Hard
Software Engineer

Merge Accounts by Shared Email

Merge Accounts by Shared Email Each account record begins with a person's name followed by one or more email addresses. Two records belong to the same...

Coding & Algorithms
2
0
28 people solved
Apr 30, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Design User Re-engagement Notifications

Design a re-engagement system for an AI assistant product. The system should support at least two use cases: 1. Send relevant notifications to inactiv...

System DesignSystem Design FundamentalsJob Scheduling & Workflows
12
0
111 people solved
Apr 10, 2026
Capital One logo
Capital One
Medium
Data Scientist

Compute Customer Spend and Engineer Features for 2023

transactions +-----------+-------------+--------+------------+--------------+ | tran_id | customer_id | amount | tran_date | merchant_cat | +------...

Data Manipulation (SQL/Python)
121
0
577 people solved
Aug 4, 2025
TikTok logo
TikTok
Medium
Machine Learning EngineerNew Grad

Implement stack variants and path-sum check

Coding tasks Solve the following algorithmic problems. 1) MinStack Design a stack supporting: - push(x), pop(), top() - getMin() returning the minimum...

Coding & AlgorithmsStacks & QueuesHeaps & Priority Queues
16
0
114 people solved
Feb 12, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Design a social network with snapshots

This question evaluates understanding of data structures, graph representations, immutability and snapshot/versioning strategies for in-memory systems...

Software Engineering FundamentalsData Structure DesignGraphs
41
0
350 people solved
Nov 16, 2025
Apple logo
Apple
Medium
Machine Learning Engineer

Design App Store search

Design the search system for a mobile app marketplace similar to an app store. Users enter short queries such as 'photo editor', 'budget tracker', or ...

ML System Design
9
0
93 people solved
Dec 17, 2025
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