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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

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>Build a 30-day plan from PracHub's Meta SWE questions.

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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
Databricks logo
Databricks
Medium
Software Engineer

Fastest Single-Mode Commute on a Grid with Per-Step Time and Cost

A city map is given as a rectangular grid of characters. Exactly one cell is 'S' (your start) and exactly one cell is 'D' (your destination). Every ot...

Coding & AlgorithmsGrids & Matrices
3
0
30 people solved
Sep 11, 2026
Stripe logo
Stripe
Hard
Software EngineerSenior+

Build a Transaction Rule Engine with AND/OR Chains and Nested Parentheses

Build a rule engine that decides whether each payment transaction is accepted or denied. - Transactions: a list of records, each a set of named attrib...

Software Engineering FundamentalsParsing & Interpreters
2
0
39 people solved
Aug 30, 2026
Roblox logo
Roblox
Medium
Software Engineer

Build an Auto-Rotating Traffic Light in Vanilla JavaScript Without a Framework

Build a traffic light in the browser using only plain HTML, CSS and JavaScript, with no framework or library. The light has three lamps, red, yellow a...

Software Engineering FundamentalsSimulation & State MachinesJavaScript & TypeScript
0
0
9 people solved
Oct 1, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Review and Scale an Inference Service Design

Review and Scale an Inference Service Design Review a proposed inference service that places a load balancer and dynamic batching layer before model s...

ML System Design
7
0
125 people solved
Aug 27, 2026
NVIDIA logo
NVIDIA
Medium
Software EngineerSenior+

Implement and Explain a C++ Smart Pointer

Implement and Explain a C++ Smart Pointer The preserved report says only to implement a C++ smart pointer; it does not identify unique, shared, weak, ...

Software Engineering Fundamentals
11
1
90 people solved
Aug 19, 2026
Stripe logo
Stripe
Medium
Software EngineerIntern

Simulate sticky load balancer with shutdown

Problem Implement a simulator for a load balancer that routes long-lived WebSocket connections across m backend servers. You receive a sequence of tex...

Coding & AlgorithmsSimulation & State Machines
107
1
1047 people solved
Feb 12, 2026
Meta logo
Meta
Medium
Machine Learning Engineer

Read Current and Historical Field Values with Expiration

Implement replayDatabase(operations) for an initially empty in-memory database. Each value belongs to a (key, field) pair. Process operations in order...

Coding & AlgorithmsData Structure DesignBinary Search
4
0
77 people solved
Sep 1, 2026
Glean logo
Glean
Medium
Software Engineer

Design a Test Strategy for a System That Counts the Leaves on a Large Tree

In a QA engineer interview, the testing scenario was: how would you test a system that counts the number of leaves on a large tree? The prompt is deli...

Software Engineering FundamentalsTesting & Quality
0
0
7 people solved
Sep 30, 2026
Amazon logo
Amazon
Medium
Software Engineer

Design a Distribution-Center Inventory Update Service

Design a service that receives stock updates from distribution centers and maintains the latest quantity, availability, and last-update time for each ...

System DesignSystem Design FundamentalsConsistency & Availability
2
0
26 people solved
Sep 14, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Minimize the Largest Value When Picking at Least k Non-Adjacent Houses

A row of houses stands along a street, and nums[i] is the amount of money in house i. A robber will rob at least k houses but never two adjacent house...

Coding & AlgorithmsBinary Search
3
0
39 people solved
Sep 7, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Describe Negative Feedback You Received and What You Changed Afterward

Tell me about a time you received negative feedback. What did you learn from it? `hint Choose real feedback Pick feedback that was uncomfortable and p...

Behavioral & LeadershipConflict & CollaborationFailure & Learning
0
0
11 people solved
Sep 30, 2026
Visa logo
Visa
Medium
Software Engineer

Java Fundamentals: Polymorphism and Monolith Versus Microservices

This round opened with Java fundamentals. Two of the questions were reported: explain polymorphism, and compare a monolithic architecture with microse...

Software Engineering FundamentalsProgramming LanguagesMicroservices & Service Architecture
1
0
13 people solved
Sep 27, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Message Rate Limiter

Message Rate Limiter Implement message_rate_limit_decisions(timestamps: list[int], messages: list[str], window_seconds: int) -> list[bool]. Process a ...

Coding & Algorithms
13
2
116 people solved
Aug 20, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Design an Interactive Query Execution Notebook

Design an Interactive Query Execution Notebook Design a notebook-like service in which users submit SQL queries and receive results, similar to an onl...

System Design
8
0
114 people solved
Aug 24, 2026
Pinterest logo
Pinterest
Hard
Software Engineer

Design a Typeahead Service on an In-Memory Trie, Then Scale It Without New Services

Design a typeahead (search autocomplete) service. As a user types into a search box, the client sends the current prefix, and the service returns a sh...

System DesignSearch & Feed SystemsPartitioning & Consistent Hashing
1
0
20 people solved
Sep 19, 2026
Atlassian logo
Atlassian
Medium
Software EngineerSenior+

Explain a Project Architecture Through a Technical Deep Dive

Prepare a technical deep dive into a system you worked on. Use an architecture diagram to explain its components and then defend the important design ...

Behavioral & LeadershipProject Deep DiveSystem Design Fundamentals
2
0
31 people solved
Sep 3, 2026
Worldquant logo
Worldquant
Medium
Software Engineer

Count Unordered Combinations of Unlimited Coins

Given an array coins of positive coin denominations and a nonnegative integer target, return the number of distinct combinations of coins whose total ...

Coding & AlgorithmsDynamic Programming
3
0
21 people solved
Sep 14, 2026
Netflix logo
Netflix
Easy
Software Engineer Locked

Compute Minimum Broadcast Latencies Between Cities

Compute minimum broadcast latency from one city to every city in a weighted undirected network. Use Dijkstra's algorithm with wide integer distances, ...

Coding & Algorithms
26
0
186 people solved
Aug 21, 2026
Retell logo
Retell
Medium
Software EngineerNew Grad

Two-Level Flight Search System with Weekly Schedules and Arrival Times

Implement a simple in-memory flight search system. The task comes in two levels: Level 2 extends Level 1, and every Level 1 method must keep working a...

Software Engineering FundamentalsData Structure Design
2
0
17 people solved
Sep 19, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer Locked

Simulate Players Moving Under a Watcher's Gaze

Simulate players advancing along a road while a moving watcher periodically reverses direction and freezes observed players. Follow the exact discrete...

Coding & AlgorithmsSimulation & State Machines
32
0
346 people solved
Jul 8, 2026
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