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.

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

École normale supérieure
Skills you'll gain: Theoretical Computer Science, Combinatorics, Algorithms, Advanced Mathematics, Linear Algebra, Mathematical Modeling, Probability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Full-Stack Web Development, UI Components, User Interface (UI), MySQL, User Interface (UI) Design, Object Oriented Programming (OOP), Event-Driven Programming, Database Design, Application Deployment, Application Design, Python Programming, Application Development, Database Management, Graphical Tools, Database Application, Databases, Software Design, Computer Graphics, Development Environment, SQL
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Salesforce, Salesforce Development, Application Deployment, Dashboard, Cloud Deployment, Customer Relationship Management, Change Control, Analytics, Continuous Deployment, Data Import/Export, Authentications, Customer Relationship Management (CRM) Software, Data Migration, Configuration Management, Data Presentation, Data Access, Responsive Web Design, System Configuration, Data Management, Business Logic
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Risk Management Framework, Risk Management, IT Management, Risk Appetite, Business Risk Management, Operational Risk, Enterprise Risk Management (ERM), Compliance Management, Risk Analysis, Governance, Regulatory Requirements, Organizational Structure, Accountability
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Game Design, Software Development, Development Environment, Software Documentation, Data Validation, Javascript, Debugging, Maintainability, Data Structures, Software Design, Computer Programming, Data Management
Beginner · Course · 1 - 4 Weeks

University of Manchester
Skills you'll gain: Sanitation, Water Resource Management, Environmental Policy, Policy Analysis, Economics, Policy, and Social Studies, Public Health, Community Development, Health Equity, Behavioral Economics, Case Studies, Revenue Management, Regulatory Affairs, Innovation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Information Architecture, No-Code Development, Organizational Skills, Content Management, Document Management, Productivity, File Management, Collaboration, User Accounts, Databases
Mixed · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Marketing Materials, Workflow Management, Graphic Design, Design Strategies, Customer Engagement, Layout Design, Design, Digital Publishing, Marketing, Entrepreneurship, Design Elements And Principles, Business
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Node.JS, Unit Testing, Server Side, Javascript, Debugging, Back-End Web Development, File Systems, Development Testing, Web Applications, Event-Driven Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Java, Software Development Life Cycle, Program Development, Computer Programming, Development Environment, Software Development, Integrated Development Environments, Command-Line Interface, Linux Commands
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Bash (Scripting Language), Shell Script, Linux, Scripting, Linux Commands, Linux Administration, Unix Shell, Operating System Administration, Data Persistence, Unix Commands, Systems Administration, Command-Line Interface, IT Automation, Unix, Cloud Hosting, Object-Relational Mapping, YAML, Python Programming, File Transfer Protocol (FTP), Automation
Beginner · Specialization · 3 - 6 Months