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: Jenkins, CI/CD, Selenium (Software), Test Script Development, OAuth, Software Testing, Development Environment, Application Programming Interface (API), Test Case, Test Tools, Git (Version Control System), Test Data, Software Installation
Intermediate · Course · 3 - 6 Months

EDUCBA
Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Data Sharing, Interoperability, Information Architecture, Technical Documentation, Data Management, Data Validation, Document Management
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design, Interactive Design, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Usability, User Interface (UI) Design, UI Components, Browser Compatibility, Web Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Test Tools, Test Automation, Test Planning, Scripting, Test Script Development, Continuous Integration, CI/CD, Software Testing, Regression Testing, Software Technical Review, Test Case, Continuous Delivery, Maintainability, Automation, Software Quality (SQA/SQC)
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Containerization, Restful API, Event-Driven Programming, DevOps, Data Integration, z/OS, Solution Architecture, Cloud Applications, Microservices, Enterprise Architecture, IBM Cloud, Application Lifecycle Management, Cloud-Native Computing, Application Design, CI/CD, Systems Integration, Software Architecture, Mainframe Computing
Beginner · Course · 1 - 3 Months

University of Amsterdam
Skills you'll gain: Science and Research, Research, Social Impact, Innovation, Case Studies, Open Mindset, Stakeholder Engagement, Empathy & Emotional Intelligence, Collaboration, Diversity and Inclusion
Beginner · Course · 1 - 3 Months

Skills you'll gain: JSON, Data Structures, Algorithms, Web Development Tools, Javascript, Pseudocode, Development Environment, Integrated Development Environments, Computer Programming, Application Programming Interface (API), Debugging, HTML and CSS, Object Oriented Programming (OOP), Computational Thinking, Performance Tuning, Solution Design
Beginner · Specialization · 1 - 3 Months
University of Michigan
Skills you'll gain: Video Game Development, Game Design, Culture, Education and Training, Cultural Diversity, Economics, Policy, and Social Studies, Diversity Awareness, Social Impact, Electronic Media, Community Development, Emerging Technologies, Content Creation, Timelines
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Education Software and Technology, Teaching, Digital pedagogy, Graphic Design, Creativity
Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Wireframing, Mockups, Web Content, Web Design, Information Architecture, Collaborative Software, User Experience Design
Beginner · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Collaboration, Health Technology, Health Care, Patient Coordination, Communication, Patient Education And Counseling, Patient-centered Care, Patient Treatment, Patient Flow, Primary Care, Health Systems
Beginner · Course · 1 - 4 Weeks
Starweaver
Skills you'll gain: Generative AI Agents, CrewAI, AI Orchestration, Generative AI, Agentic systems, Prompt Patterns, Tool Calling, LLM Application, Model Deployment, Responsible AI, Scalability, Application Deployment, Collaboration, Data Integration, Job Evaluation, Logical Reasoning
Intermediate · Course · 1 - 4 Weeks