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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
Meta logo
Meta
Medium
Product Manager

Product Design for Meta Portal: An App Built Around Its Auto-Framing Camera

Portal is Meta's line of smart displays for video calling, with a wide-angle camera that automatically pans and zooms to keep people in frame. Design ...

Product Design & StrategyProduct Sense
0
0
6 people solved
Oct 4, 2026
Amazon logo
AmazonDoorDashGoogle

Also asked at Google, Anduril, Squarepoint, Microsoft, DocuSign, UBS, Meta, Oracle, TikTok

Medium
Software Engineer

Three Smallest Product Suggestions for Every Typed Prefix

Problem After each next character of searchWord is typed, suggest up to three product names having the entire typed prefix. If more than three match, ...

Coding & AlgorithmsString AlgorithmsBinary Search
0
0
7 people solved
Pinterest logo
Pinterest
Hard
Software EngineerSenior+

Scheduling Four Apps at Once on Kubernetes and a Node-Feedback Scheduler Plugin

You are in a technical-depth interview for a senior backend infrastructure role on a team that runs its workloads on Kubernetes. After some discussion...

System DesignContainers & OrchestrationJob Scheduling & Workflows
3
0
50 people solved
Feb 15, 2026
Databricks logo
Databricks
Medium
Software Engineer

Find first CIDR block covering IP

You are given: - A single IPv4 address as a string, e.g. "192.168.1.5". - A list of CIDR blocks (IPv4), each as a string in the form "a.b.c.d/x", wher...

Coding & AlgorithmsNetworkingBit Manipulation
23
0
185 people solved
Dec 8, 2025
LinkedIn logo
LinkedIn
Hard
Software Engineer Locked

Design a Multi-Region Malicious-IP Detection System

Design low-latency malicious-IP detection across regions with local decisions, shared intelligence, false-positive controls, rollback, and auditabilit...

System Design
19
0
195 people solved
Sep 1, 2026
Microsoft logo
Microsoft
Easy
Machine Learning EngineerIntern

Explain bias-variance and evaluate a classifier

You are interviewing for an Applied Scientist internship. Answer the following ML foundations questions. 1) Bias–variance - Define bias and variance i...

Machine LearningML FundamentalsModel Evaluation
21
0
216 people solved
Dec 27, 2025
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Meta, Bloomberg, Flipkart, Sprinklr, Avito, Morgan Stanley, ZS Associates, TikTok, Accenture

Medium
Software Engineer

Sum the Minimum Value of Every Contiguous Subarray

Problem For every nonempty contiguous subarray of arr, take its minimum. Return the sum of those minimums modulo 10^9+7. `cpp class Solution { public:...

Coding & AlgorithmsStacks & QueuesArrays & Strings
1
0
9 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Minimum Node Deletions to Bring an N-ary Tree's Height Within k

You are given a rooted N-ary tree and a limit k. Deleting a node removes it from the tree, and its children are attached to its parent instead of bein...

Coding & AlgorithmsTreesGreedy
3
0
29 people solved
Apr 28, 2026
Replit logo
Replit
Medium
Software Engineer Locked

Design a Multi-Channel Notification System

Design a notification platform that routes one logical request across in-app, email, SMS, or push channels under user preferences. The system must han...

System Design
29
1
225 people solved
Aug 3, 2026
Coreweave logo
Coreweave
Medium
Software EngineerSenior+

Implement web data fetch and storage tool

Problem You are asked to implement a small program that retrieves data from a remote web service protected by token-based authentication, parses the r...

Coding & AlgorithmsAPI Integration & HTTP Clients
33
0
485 people solved
Oct 11, 2025
Google logo
GoogleAmazonMeta

Also asked at Meta, Microsoft, Deloitte, HashedIn

Medium
Software Engineer

Find the Earliest Time All Parallel Mechanics Finish

Problem Mechanic i has rank ranks[i] and needs ranks[i] c c minutes to repair c cars. All mechanics work simultaneously. Given the total number cars...

Coding & AlgorithmsBinary SearchMath & Number Theory
0
0
12 people solved
OpenAI logo
OpenAI
Medium
Software Engineer

Design a Cloud IDE With SSH Access Where One or More Users Share a Host

Design a cloud IDE: a service that gives developers a development environment on remote machines instead of their own computers. Developers connect to...

System DesignSystem Design FundamentalsAuthentication & Authorization
1
0
20 people solved
Jul 13, 2026
Google logo
Google
Medium
Product Manager

Google Product Sense: Choosing the Launch Product for a New Art Platform

You are a product manager at Google and have been asked to create a platform devoted to art for the people who already use Google's products. Decide w...

Product Design & StrategyProduct Sense
0
0
8 people solved
Sep 12, 2026
Google logo
GoogleMicrosoftAmazon

Also asked at Amazon, Bloomberg, Meta

Easy
Software Engineer

Can All Values Be Rearranged into an Arithmetic Progression?

Problem Determine whether every entry of arr can be reordered so that consecutive differences are all equal. Return true or false; no particular rearr...

Coding & AlgorithmsSortingMath & Number Theory
0
0
9 people solved
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Microsoft, Oracle, Siemens, Zomato

Medium
Software Engineer

Recover Two Singly Occurring Signed Values

Problem Exactly two values in nums occur once; every other value occurs twice. Return the two single-occurrence values in either order, using linear t...

Coding & AlgorithmsBit Manipulation
1
0
10 people solved
Anthropic logo
Anthropic
Hard
Software Engineer

Describe failure impact and resolve cross-functional conflict

You are in a behavioral interview. Answer the following prompts using a structured method (e.g., STAR or CARL). Provide specific details, metrics wher...

Behavioral & LeadershipFailure & LearningConflict & Collaboration
21
0
355 people solved
Oct 9, 2025
ByteDance logo
ByteDance
Medium
Software Engineer

Report the winner after each move on an n-by-n tic-tac-toe board

Two players play a generalized game of tic-tac-toe on an n × n board. The players are numbered 1 and 2, and each move places the moving player's mark ...

Coding & AlgorithmsSimulation & State Machines
1
0
12 people solved
Jul 28, 2026
Sigmacomputing logo
Sigmacomputing
Medium
Software Engineer

Build a pivot table class over shirt sales records with running and grand totals

You are given shirt sales records as a list of Python dictionaries. Each record has a store ID, a date, a color, a size and the number of shirts sold:...

Software Engineering FundamentalsLow-Level Design (OOP)Arrays & Strings
1
0
25 people solved
Jul 29, 2026
Meta logo
Meta
Medium
Backend Engineer AI Locked

Solve coding and AI-assisted tasks

This set evaluates algorithmic problem-solving across arrays, immutable linked-list interfaces, parent-pointer tree traversal, string validity via min...

Coding & AlgorithmsGrids & MatricesLinked Lists
22
0
168 people solved
Apr 8, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Influence a Colleague Who Prefers a Different Approach

Describe influencing a colleague through shared goals, fair comparison, evidence, willingness to revise, and a concrete collaborative decision.

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
1
0
22 people solved
Sep 14, 2026
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