Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Skills you'll gain: Network Routing, TCP/IP, Virtual Networking, Google Cloud Platform, Network Infrastructure, Virtual Private Networks (VPN), Network Planning And Design, Cloud Computing, Network Monitoring, Network Security, Cloud Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computer Vision, Python Programming, Image Analysis, Real Time Data, Classification Algorithms, Development Environment, Deep Learning, Software Installation, Algorithms
Beginner · Course · 3 - 6 Months

Skills you'll gain: Apache Spark, Scala Programming, Apache Hadoop, Apache Maven, Real Time Data, Data Processing, Scalability, Data Structures, Object Oriented Programming (OOP), Systems Integration
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: GitLab, CI/CD, Application Deployment, Continuous Integration, Devops Tools, DevOps, Build Tools, Continuous Delivery, Continuous Deployment, Security Testing, Test Automation, DevSecOps, Unit Testing, Program Development, Secure Coding, Vulnerability Scanning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Collaborative Software, Brainstorming, Innovation, Design Thinking, Ideation, New Product Development, Product Development, Collaboration, Analysis, Project Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Persistence, Retrieval-Augmented Generation, LLM Application, OpenAI API, Full-Stack Web Development, Restful API, Development Environment, Vector Databases, Embeddings, Application Deployment, JSON, Data Integration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Agile Project Management, Stakeholder Engagement, Stakeholder Management, Team Motivation, Team Leadership, Agile Methodology, Risk Analysis, Earned Value Management, Sprint Planning, Continuous Improvement Process, Project Management, Sprint Retrospectives, Communication Strategies, Project Risk Management, Estimation, Prioritization, User Story
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, Video Game Development, Game Design, C# (Programming Language), Animations, Performance Tuning, Frontend Performance, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Node.JS, File I/O, Javascript, Event-Driven Programming, Web Applications, Web Servers, Software Installation, Server Side, Application Development, JSON, Real Time Data, Command-Line Interface, TCP/IP, OS Process Management
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Simulations, Education Software and Technology, Computer Programming Tools, Computational Thinking, No-Code Development, Program Development, Computer Programming, UI Components, Pedagogy
Advanced · Guided Project · Less Than 2 Hours

Alex Genadinik
Skills you'll gain: Vibe coding, Generative AI Agents, AI Workflows, Agentic systems, Email Automation, AI Orchestration, Search Engine Optimization, Inside Sales, Web Analytics, Prompt Engineering, Development Environment, Application Deployment, Front-End Web Development, Debugging
Mixed · Course · 1 - 3 Months

Skills you'll gain: Scenario Testing, Test Planning, Unit Testing, Functional Testing, Test Case, Hardware Troubleshooting
Beginner · Course · 1 - 4 Weeks