Refactoring Courses and Certifications

Career Certificate

Test Driven Development in Ruby & RSpec

Master TDD with Ruby & RSpec through hands-on practice with mocking, stubbing, test doubles, and refactoring strategies for scalable, maintainable code.

• CodeSignal
• 13 hours
• Self-Paced
• Free Certificate
• 4 courses

Career Certificate

Test-Driven Development in Scala 3, ScalaTest, and Mockito

Master TDD in Scala 3 with ScalaTest and Mockito—write tests first, implement code, refactor, and use test doubles to create cleaner, maintainable code while reducing bugs.

• CodeSignal
• 13 hours
• Self-Paced
• Free Certificate
• 4 courses

Career Certificate

Test-Driven Development with Kotlin, JUnit and Mockito

Master TDD principles in Kotlin with JUnit and Mockito to write cleaner, maintainable code while reducing bugs and improving development efficiency through hands-on practice.

• CodeSignal
• 13 hours
• Self-Paced
• Free Certificate
• 4 courses

Career Certificate

Test Driven Development in C++ with Google Test

Master TDD principles in C++ using Google Test/Mock framework to write cleaner, maintainable code through red-green-refactor cycles and effective test isolation techniques.

• CodeSignal
• 13 hours
• Self-Paced
• Free Certificate
• 4 courses

Career Certificate

Test Driven Development in Go and Testify

Master TDD principles in Go using Testify framework. Write tests first, use mocks and stubs, apply refactoring techniques to build reliable, maintainable applications.

• CodeSignal
• 12 hours
• Self-Paced
• Free Certificate
• 4 courses

Breaking Dependencies to Improve Code

Discover techniques to break dependencies in C++ systems using interfaces, dependency injection, and refactoring strategies to enhance testability and maintainability.

• CodeSignal
• 3 hours
• Self-Paced
• Free Certificate

Using Seams to Enable Testability and Expand Capabilities

Master strategic code modification points to enable safe testing, refactoring, and incremental improvements in legacy C++ systems through functional, object, and preprocessor seams.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

C# Refactoring | Powerful code optimization

220 ratings at Udemy

Introduction to the code refactoring practice in C#

• Udemy
• 1 hour 33 minutes
• Self-Paced
• Free Online Course

Long-form Refactoring Workshops

Enhance code quality through step-by-step refactoring techniques, exploring real-life examples and common pitfalls to improve software maintainability and readability.

• Laracasts
• 1 hour 34 minutes
• Self-Paced
• Paid Course

Amazon Web Services;  Amazon

Refactoring Legacy Apps to Microservices using AWS Migration Hub Refactor Spaces

Learn to refactor monolithic applications into microservices using AWS Migration Hub Refactor Spaces, leveraging Lambda and DynamoDB for improved scalability and performance.

• AWS Skill Builder
• 1 hour 30 minutes
• Self-Paced
• Paid Course

Eclipse Tutorial For Beginners : Learn Java IDE in 10 Steps

7029 ratings at Udemy

Comprehensive guide to Eclipse IDE, covering shortcuts, debugging, refactoring, code generation, and project setup. Boost productivity and master essential features for Java development.

• Udemy
• 1 hour 22 minutes
• Self-Paced
• Free Online Course

Learn Java Programming Crash Course

4527 ratings at Udemy

This Java For Beginners Course Includes Java Basics And Core Java Skills Training To Make You A Software Developer Fast

• Udemy
• 12 hours 39 minutes
• Self-Paced
• Paid Course

Design Patterns in Go

2229 ratings at Udemy

Discover the modern implementation of design patterns in Go (golang)

• Udemy
• 9 hours 46 minutes
• Self-Paced
• Paid Course

Derek Banas

Code Refactoring

Master code refactoring techniques to improve code quality, maintainability, and performance through systematic restructuring and optimization methods.

• YouTube
• 4 hours 14 minutes
• Self-Paced
• Free Video

Learn Ruby

2791 ratings at Codecademy

Learn to program in Ruby, a flexible and beginner-friendly language used to create sites like Codecademy.

• Codecademy
• 9 hours
• Self-Paced
• Free Trial Available