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Decode the Coding Interview in Ruby: Real-World Examples

The ultimate guide to Ruby interviews. Developed by FAANG engineers, practice with real-world interview questions from top companies. Prep faster and get interview-ready in just a few hours.

389 Lessons

21h

Also available in

C++

Java

JavaScript

Kotlin

Python

Also available in

Join 2.9 million developers at

LEARNING OBJECTIVES

Get hands on practice in preparing for coding interviews by tackling real world problem.
Prepare for interviews by solving the frequently asked coding question at companies like FAANG.
Perform an in-depth analysis of commonly asked coding interview problems.
Learn to map real-world problems to actual interview questions.

Learning Roadmap

389 Lessons175 Challenges

✨Getting Started

Get familiar with coding interview essentials, tackling real-world problems, and key patterns.

Course Overview

Who Should Take This Course?

Netflix

Walk through Netflix feature implementations, optimizing search, recommendations, and user session handling.

Facebook

22 Lessons

Examine advanced coding challenges and solutions, enhancing Facebook's features for integration and user experience.

Search Engine

22 Lessons

Enhance your skills in developing search engine features through efficient data structures and algorithms.

Google Calendar

17 Lessons

Solve problems in Google's calendar app, enhancing scheduling, conflict management, and productivity features.

Stock Scraper

13 Lessons

Follow the process of designing a stock scraper, DOM traversal, and analyzing stock data efficiently.

UBER

18 Lessons

Master the steps to optimize Uber's driver allocation, route planning, fares, and carpool options.

Amazon

34 Lessons

Step through Amazon’s coding challenges, covering recommendations, logistics, price filtering, and more.

Zoom

12 Lessons

Get started with developing Zoom features and DIY coding tasks for interview prep.

10.

Plagiarism Checker

6 Lessons

Go hands-on with building a plagiarism checker, detecting code similarities and subsequences.

11.

Network

27 Lessons

Grasp the fundamentals of network structures, protocols, and efficient algorithms for robust implementations.

12.

Cyber Security

12 Lessons

Take a closer look at developing encryption schemes, verifying integrity, and solving cyber security problems.

13.

Operating System

35 Lessons

Focus on OS concepts like process scheduling, memory management, file handling, and system recovery.

14.

Language Compiler

22 Lessons

Build on enhancing understanding of compiler design and optimization through hands-on features.

15.

Boggle

6 Lessons

Try out Boggle project development, mastering search algorithms and grid-based word search.

16.

Scrabble 2.0

6 Lessons

Walk through building Scrabble 2.0 with word transformation algorithms and interview problem patterns.

17.

Game

9 Lessons

Go hands-on with game development features and interview-driven problem-solving techniques.

18.

Stocks

19 Lessons

Grasp the fundamentals of enhancing stock trading systems with practical solutions and techniques.

19.

Computational Biology

21 Lessons

Solve problems in computational biology, DNA mutation, virus detection, protein location, and similarity measures.

20.

Cellular Operator(AT&T)

20 Lessons

Implement algorithms for optimizing cellular networks, including signal strength, coverage areas, and user management.

21.

Twitter

17 Lessons

Master the steps to developing Twitter-like features and solving programming challenges for coding interviews.

22.

Trees

8 Lessons

Learn how to use various techniques to manipulate and traverse binary trees effectively.

23.

Miscellaneous

14 Lessons

Walk through diverse real-world coding challenges and their optimal algorithmic solutions.

24.

Conclusion

Explore career development with additional resources on behavioral interviews and data structures.

Where to Go from Here?

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

ABOUT THIS COURSE

Preparing for coding interviews has become a daunting task. Trying to solve enough practice questions and remember solutions can feel impossible. Fortunately, the best way to be successful in the coding interview is not to just grind through problems. The best way is to develop the skills to break down a new problem and deploy the right tools to come up with a solution. That’s why in this course, you’ll prepare for coding interviews by tackling real world problems faced by tech companies. When you solve real problems related to real projects (for example, paginating attendees in a Zoom call), not only will you have more fun preparing, but you’ll also have an easier time remembering what you’ve learned. After each project, we’ll also show you what kinds of interview problems you’ll now be able to solve using the techniques you just applied, so that your knowledge is adaptable to new problems. (This course is also available in Rust, Java, C++, C#, Go, Python, Elixir, Scala, Swift, Kotlin and JavaScript.)

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You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it.

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Carlos Matias La Borde

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Souvik Kundu

Front-end Developer

Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content.

Vinay Krishnaiah

Software Developer