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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
Waymo logo
Waymo
Medium
Software Engineer Locked

Respond to On-Call Pressure, Feedback, and Team Conflict

Tell an on-call story in which incomplete information and team disagreement complicated mitigation. Present detection, containment, recovery, and foll...

Behavioral & Leadership
2
0
34 people solved
Aug 10, 2026
Google logo
Google
Medium
Software Engineer Locked

Minimize Direction Violations in a Directed Road Network

Find a route through a directed road network that minimizes travel against the original edge directions. Model forward and reverse traversal costs cor...

Coding & AlgorithmsGraphs
71
5
510 people solved
Jul 5, 2026
Glean logo
Glean
Medium
Machine Learning Engineer

Find Earliest Train Route

You are given a discrete train timetable and need to find a valid route through the train network. Each train has an itinerary represented as a sequen...

Coding & Algorithms
24
0
233 people solved
Apr 23, 2026
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Bloomberg, Amazon, TCS

Medium
Software Engineer

Most Vowels in a Fixed-Length Substring

Problem Return the largest number of vowel occurrences in any contiguous length-k substring of s. The vowels are exactly a,e,i,o,u. `cpp class Solutio...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
Stripe logo
Stripe
Hard
Software EngineerSenior+ Locked

Implement Validation and String Compression

This question evaluates string processing, input validation, tokenization, hierarchical string manipulation, and algorithmic complexity analysis skill...

Coding & AlgorithmsParsing & InterpretersData Cleaning & Wrangling
12
0
197 people solved
Mar 1, 2026
Upstart logo
Upstart
Medium
Software Engineer Locked

Add Dramatic Punctuation to Text

Transform text by replacing periods inside each non-whitespace token and adding the required dramatic suffix while preserving every whitespace charact...

Coding & Algorithms
9
0
76 people solved
Jul 27, 2026
Meta logo
Meta
Medium
Product Manager

How a Photo Message Travels in WhatsApp or Messenger: Upload, Encryption, Delivery

In a product manager interview at Meta, the interviewer tests your technical fluency with a familiar scenario: someone shares a picture in a chat app ...

System DesignTechnical Tradeoffs for PMsCryptography
1
0
10 people solved
Aug 23, 2026
Google logo
GoogleLinkedInMeta

Also asked at Meta, Amazon, Bloomberg, TCS

Easy
Software Engineer

Find the Next Strictly Larger Letter with Wraparound

Problem letters is sorted in nondecreasing order. Return its smallest letter strictly after target alphabetically. If none is larger, wrap to letters[...

Coding & AlgorithmsBinary Search
1
0
14 people solved
Roblox logo
Roblox
Medium
Software Engineer

Can the character reach the destination?

You control a character starting at a start cell and want to reach a target cell in a 2D grid. Some cells are blocked by obstacles and cannot be enter...

Coding & AlgorithmsGrids & Matrices
27
0
282 people solved
Dec 21, 2025
Datadog logo
Datadog
Easy
Software EngineerSenior+ Locked

Engineering Manager Interview: Your Technical Contribution and an Annoying Teammate

A hiring manager conversation for an engineering manager role: introduce yourself, explain your own technical contribution to a project you led, and d...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
6
0
66 people solved
Sep 5, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Discuss culture and mission alignment

Behavioral: Culture & Mission Alignment Role: Software Engineer · Stage: Onsite (Virtual Onsite) · Format: Panel behavioral round Context You are inte...

Behavioral & LeadershipMotivation & FitAmbiguity & Decision Making
143
1
989 people solved
Sep 6, 2025
Decagon logo
Decagon
Medium
Software Engineer

Compute exclusive CPU time from nested logs

You are given logs from a single-threaded CPU that runs n functions (IDs 0 to n-1). Each log entry is a string in the format: - "functionId:start:time...

Coding & AlgorithmsStacks & Queues
23
0
391 people solved
Mar 1, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Design an object store with deduplication

System Design Prompt Design a simplified cloud object storage service (similar to an object store) that allows users to upload and download files. The...

System DesignFile & Media Storage
66
1
526 people solved
Dec 15, 2025
eBay logo
eBay
Easy
Applied Scientist

Docker optimization, container fundamentals, and CI/CD for an ML model service

You maintain a Python machine learning inference service that is packaged as a Docker image and shipped to production through an automated pipeline. T...

Software Engineering FundamentalsMLOps & Model ServingCI/CD & Deployment
2
0
30 people solved
Sep 24, 2026
Google logo
GoogleBarclaysTeradata

Also asked at Teradata, Zeta Global, Meta, Microsoft, Amazon, PhonePe

Hard
Software Engineer

Maximize the Score from Removing Equal-Color Runs

Problem Given the sequence boxes, repeatedly remove a contiguous nonempty run of k boxes of one color and earn k*k points. Remaining boxes close the g...

Coding & AlgorithmsDynamic Programming
0
0
12 people solved
Netflix logo
Netflix
Medium
Software Engineer

Design Rolling-Window Ad Frequency Capping

Design a frequency-capping service for an advertising platform. The ad platform receives ad requests for users and must decide whether a candidate ad,...

System DesignRate LimitingAds Systems
31
0
219 people solved
Apr 17, 2026
Stripe logo
Stripe
Medium
Software Engineer

Process auth requests with fraud rules

Question Implement a function that, given a list of Authorization Requests (timestamp_seconds, unique_id, amount, card_number, merchant), outputs a hu...

Coding & Algorithms
99
0
432 people solved
Jul 29, 2025
Meta logo
Meta
Hard
Software Engineer

Design an Online Game Leaderboard

Question Design the backend system for an online game's leaderboard. The system should support: 1. Recording and updating player scores from game sess...

System DesignMultiplayer Game SystemsCaching
23
0
198 people solved
Apr 27, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

How you use AI to work faster and raise your team's efficiency

Every round of this infrastructure loop included the same question: how do you use AI tools to work more efficiently day to day, and have you done any...

Behavioral & LeadershipAI-Assisted DevelopmentLeadership & Influence
0
0
7 people solved
Sep 11, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, X (Twitter)

Medium
Software Engineer

Find the Fewest Valid Single-Character Gene Mutations

Find the Fewest Valid Single-Character Gene Mutations A gene is a string of eight characters from A, C, G, and T. One mutation changes exactly one cha...

Coding & AlgorithmsGraphsStacks & Queues
1
0
12 people solved
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