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: JUnit, Unit Testing, IntelliJ IDEA, Apache Maven, Software Testing, Test Case, Testability, Test Tools, Java, Mockups
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Full-Stack Web Development, Responsive Web Design, Email Automation, Order Management, Data Validation, User Interface (UI) Design, Search Engine Optimization, Web Applications, JavaScript Frameworks, Authentications, User Interface (UI), React.js, Payment Processing, E-Commerce, PostgreSQL, Dashboard, Database Development, Object-Relational Mapping, Product Improvement, Real Time Data
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: 3D Modeling, 3D Assets, Unreal Engine, Computer Graphics, Graphical Tools, Image Quality, Performance Tuning, Content Management, Data Import/Export
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Web Analytics and SEO, Content Management Systems, Web Design, Web Analytics, Supplier Management, Web Design and Development, E-Commerce, WordPress, Search Engine Optimization, No-Code Development, Blogs, Retail Management, Order Management, Web Development, Marketing Strategies, Shipping and Receiving, Information Architecture, Customer Relationship Management (CRM) Software, Web Frameworks, Web Development Tools
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Crisis Management, Systems Thinking, Stakeholder Communications, Disaster Recovery, Leadership, Contingency Planning, Leadership and Management, Resilience, Business Continuity, Communication, Risk Analysis, Systems Engineering, Complex Problem Solving, Decision Making, Organizational Change, Organizational Strategy, Corporate Strategy, Systems Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microservices, CI/CD, Containerization, Serverless Computing, Docker (Software), Kubernetes, Event-Driven Programming, Transaction Processing, Cloud Deployment, Redis, Software Architecture, Distributed Computing, Scalability, Amazon Web Services, System Monitoring, Software Design Patterns, Data Integrity, Real Time Data
Advanced · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Google Gemini, Search Engine Optimization, Anthropic Claude, Large Language Modeling, Generative AI, ChatGPT, Prompt Engineering, Web Analytics and SEO, Keyword Research, Artificial Intelligence, Content Creation, Content Strategy, Product Promotion, Brand Strategy
Mixed · Course · 1 - 3 Months

Skills you'll gain: Closing (Sales), Sustainable Business, Sales, Professional Development, Customer Relationship Building, Sales Strategy, Professionalism, Persuasive Communication, Emotional Intelligence, Influencing, Adaptability, Data Centers, Customer Insights, Interviewing Skills, Public Speaking, Negotiation, Account Management, Customer Relationship Management, Lead Generation, Digital Content
Beginner · Professional Certificate · 3 - 6 Months

LearnQuest
Skills you'll gain: Blockchain, Interoperability, Network Architecture, Systems Architecture, Data Architecture, Solution Architecture, Information Technology Architecture, Enterprise Architecture, Authentications, Cryptography, Identity and Access Management, Emerging Technologies, Encryption, Threat Modeling, Enterprise Security, Scalability, Security Testing, Requirements Analysis, Prototyping
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Ideation, Diagram Design, Brainstorming, Team Building, Productivity Software, Data Visualization, Organizational Skills
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Newsletters, Marketing Materials, Promotional Materials, Marketing Design, Email Marketing, Content Creation, Event Marketing, Owned Media, Graphic Design, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: ASP.NET, Database Development, Database Management, Object-Relational Mapping, Back-End Web Development, Full-Stack Web Development, C# (Programming Language), Database Design, Application Frameworks, Authorization (Computing), Model View Controller, Authentications, Data Modeling, Data Migration, Data Mapping, Business Logic, Software Design Patterns, Data Validation
Intermediate · Course · 1 - 3 Months