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: Data Entry, Data Visualization, Spreadsheet Software, Data Literacy, Data Science, Business Writing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Instagram, Graphic and Visual Design, Graphic Design, Social Media Content, Social Media, Social Media Marketing, Content Creation, Facebook, Animations, Storytelling, User Accounts
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Generative AI Agents, OpenAI API, Command-Line Interface, AI Enablement, Agentic systems, API Testing, Rust (Programming Language), Key Management, Software Technical Review, Verification And Validation, Unit Testing, Solution Architecture, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Security, Cloud Applications, Cloud Security, Cloud Development, Identity and Access Management, Secure Coding, Security Awareness, Security Testing, Data Security, Cloud Deployment, User Provisioning, Software Development, Verification And Validation, Software Quality Assurance, Threat Management, Authentications, Multi-Factor Authentication
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Sales Management, Strategic Leadership, Sales Strategy, Business Leadership, Growth Strategies, Customer Relationship Management, Team Motivation, Organizational Strategy, Plan Execution, Leadership Development, Business Strategy, Team Performance Management, Strategic Decision-Making, Customer experience strategy (CX), Team Management, Risk Analysis, Communication, Growth Mindedness, Milestones (Project Management)
Advanced · Course · 1 - 3 Months

Skills you'll gain: Microsoft Power Platform, Data Analysis Expressions (DAX), Power BI, Microsoft Azure, Microsoft Power Automate/Flow, Dashboard, Workflow Management, Data Integration, Data Modeling, Multi-Tenant Cloud Environments, Enterprise Application Management, Data Visualization Software, Postman API Platform, Serverless Computing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Modeling, Query Languages, Data Mapping, NoSQL, Relational Databases, Scalability, Performance Tuning, JSON, Data Validation, Event Monitoring
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React.js, Web Content Accessibility Guidelines, Game Design, Front-End Web Development, Application Programming Interface (API), User Interface (UI), Web Components, Usability, JavaScript Frameworks, Web Development Tools, Web Frameworks, Debugging, Web Development
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: DeepSeek API, Deepseek, Retrieval-Augmented Generation, Model Deployment, AI Enablement, Make.com, Generative Model Architectures, LLM Application, Cloud Deployment, Embeddings, Software Documentation, Unit Testing, Key Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unreal Engine, Cinematography, Video Production, Post-Production, Video Editing, Animations, Augmented and Virtual Reality (AR/VR), Virtual Environment, Live Streaming, Real Time Data
Mixed · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Power Apps Component Framework, Application Lifecycle Management, Microsoft Power Platform, Microsoft Power Automate/Flow, Azure DevOps, Microsoft Copilot, Application Deployment, User Interface and User Experience (UI/UX) Design, Postman API Platform, Microsoft Azure, Mobile Development, CI/CD, Application Programming Interface (API), TypeScript
Intermediate · Course · 1 - 4 Weeks

National Taiwan University
Skills you'll gain: Report Writing, Operations Research, Applied Mathematics, Mathematical Modeling, Algorithms, Industrial Engineering, Business Modeling, Process Optimization, Engineering Calculations, Feasibility Studies, Project Design, Engineering Management, Business Operations, Data Visualization, Presentations, Complex Problem Solving, Business Analytics
Advanced · Course · 1 - 4 Weeks