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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
Microsoft logo
Microsoft
Medium
Software Engineer

Low-Level Design of a Logging Library Shared by Many Threads

Design a logging framework for a service in which many threads write log messages at the same time. Model the classes and how they relate to each othe...

Software Engineering FundamentalsLow-Level Design (OOP)Concurrency
1
0
20 people solved
Apr 2, 2026
Meta logo
Meta
Medium
Software Engineer Locked

Validate Sorted Order Under a Custom Alphabet

This question evaluates a candidate's ability to apply custom ordering rules and string comparison logic, a common variant of array and string validat...

Coding & Algorithms
5
0
40 people solved
Jun 20, 2026
Oracle logo
Oracle
Medium
Software Engineer Locked

Deliver Under a Tight Deadline

Build a deadline story around deliberate scope, protected correctness, explicit decision authority, and a verified outcome.

Behavioral & Leadership
2
0
26 people solved
Aug 18, 2026
Chicago Trading Company logo
Chicago Trading Company
Medium
Software Engineer Locked

Show Teamwork and Drive Through Difficult Engineering Situations

Prepare two concise behavioral stories: helping a peer without taking over and delivering an important engineering result through serious obstacles. F...

Behavioral & Leadership
5
0
47 people solved
Jul 1, 2026
eBay logo
eBay
Medium
Software Engineer Locked

Explain Why You Want to Join This Company

Prepare a credible explanation of why you want to join a company by connecting personally verified product, engineering, and role details to experienc...

Behavioral & Leadership
4
0
30 people solved
Aug 5, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Design a Ranked Social Feed with Hybrid Fan-Out

Design a read-heavy ranked social feed that gives authors immediate visibility for their own new posts. Explore hybrid fan-out, durable content and fo...

System Design
6
0
77 people solved
May 13, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

How do you handle an LLM agents interview?

This question evaluates an engineer's competency in designing and evaluating LLM-powered agents, covering system architecture, tool and API integratio...

ML System DesignAI AgentsLLM Evaluation
58
0
579 people solved
Mar 1, 2026
Google logo
Google
Medium
Software EngineerSenior+

Lead a deep dive on your most complex project

Past project deep dive (Staff/L6) Pick the most complex system you’ve worked on and be prepared for a 30–45 minute deep dive. Expect probing questions...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
11
0
167 people solved
Jan 12, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Expand Nested Repetition Expressions

This question evaluates understanding of string parsing and nested structure handling, including skills in recursion, stack-based parsing, tokenizatio...

Coding & Algorithms
6
0
80 people solved
May 8, 2026
Vanta logo
Vanta
Easy
Software Engineer Locked

Implement a Unique Lines Command

This question evaluates mastery of file I/O, streaming algorithms, stateful line processing, and memory-efficient handling of large inputs, situating ...

Coding & Algorithms
17
1
157 people solved
May 25, 2026
Apple logo
Apple
Medium
Software EngineerNew Grad

Distinguish Checked and Unchecked Exceptions in Java

What is the difference between checked and unchecked exceptions in Java? Give examples and explain what the distinction requires at a method boundary....

Software Engineering FundamentalsProgramming Languages
2
0
14 people solved
Mar 14, 2026
StubHub logo
StubHub
Medium
Software EngineerSenior+

Build Event Notification Engine

You are implementing part of a marketing engine for an event marketplace. Assume the following data is available: - Customer: id, city, birth_month, b...

Coding & AlgorithmsLow-Level Design (OOP)
30
0
242 people solved
Feb 16, 2026
Rippling logo
Rippling
Medium
Data Analyst Locked

Find Payroll Bookings in the Latest Active Month by Country

Practice PostgreSQL date logic by finding the latest active payroll-booking month and aggregating amounts by headquarters country. The task tests prec...

Data Manipulation (SQL/Python)SQL
12
0
87 people solved
May 28, 2026
Meta logo
Meta
Hard
Software Engineer Locked

Return the Minimum-Sum Root-to-Leaf Path

Find the minimum-sum root-to-leaf path in a binary tree while handling negative values, empty input, and a deterministic leftmost tie-break. Your appr...

Coding & Algorithms
7
0
57 people solved
Aug 3, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Build a Reliable Streaming Chat UI

You are building a React-based chat interface where assistant responses stream into the UI token by token in real time (the same UX as a typical LLM c...

Software Engineering FundamentalsReact & UI FrameworksReal-Time Systems
27
0
310 people solved
Apr 4, 2026
Bloomberg logo
BloombergGoogleSumologic
Medium
Software Engineer

Minimize Position Mismatches Using Allowed Swaps

Problem source and target have equal length. An entry [a,b] in allowedSwaps permits exchanging source positions a and b any number of times, in any or...

Coding & AlgorithmsGraphsArrays & Strings
1
0
8 people solved
Warp logo
Warp
Medium
Software Engineer

Implement Terminal Tabs and Split Panels

Implement a data structure that models a terminal application with multiple tabs and split panels. Requirements: - A Terminal can create and store mul...

Coding & Algorithms
12
0
116 people solved
Apr 10, 2026
Microsoft logo
Microsoft
Hard
Software EngineerSenior+

Implement concurrent structures and debug queue code

The coding rounds covered several implementation and debugging tasks: 1. Implement an LRU cache that supports get(key) and put(key, value) in constant...

Coding & AlgorithmsData Structure DesignConcurrency
20
0
165 people solved
Apr 7, 2026
xAI logo
xAI
Medium
Software Engineer

Versioned Key-Value Store with Nested Transactions (Begin, Commit, Rollback)

Implement an in-memory versioned key-value database that supports transactional writes with three transaction-control operations: begin (start a trans...

Coding & Algorithms
7
0
110 people solved
Aug 7, 2025
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Design a Venue Rental and Booking System (HLD)

This question evaluates a candidate's ability to translate a marketplace-style booking domain into a high-level system design, including entity modeli...

System DesignSystem Design FundamentalsStorage & Sharding
21
0
211 people solved
Jun 30, 2026
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