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 Orchestration, AI Workflows, LLM Application, Agentic systems, Tool Calling, LangChain, Artificial Intelligence, Prompt Engineering, Model Evaluation, Context Management, Scenario Testing, Performance Testing, Development Testing, Debugging
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Teradata SQL, SQL, Data Store, Database Design, Database Management, Relational Databases, Query Languages, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operational Databases, NoSQL, Real Time Data, Scalability, Database Design, Application Deployment, Data Infrastructure, Big Data, Data Manipulation, Performance Tuning, Data Modeling, Distributed Computing, Data Storage Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Generative Model Architectures, Model Deployment, Image Analysis, Cloud Deployment, Unsupervised Learning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Engineering, Network Troubleshooting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Search Engine Optimization, Consumer Behaviour, Marketing, Web Analytics and SEO, Marketing Strategies, Digital Advertising, Keyword Research, Digital Marketing, Marketing Effectiveness, Advertising, Brand Strategy, Market Analysis, Goal Setting
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Video Game Development, Unreal Engine, Game Design, User Interface (UI), Prototyping, Visualization (Computer Graphics), Artificial Intelligence, User Interface (UI) Design, Animations, Debugging
Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: AI Enablement, Regulatory Requirements, Responsible AI, Compliance Management, Business Transformation, Risk Analysis, Regulation and Legal Compliance, Business Solutions, Cross-Functional Team Leadership, Key Performance Indicators (KPIs), Digital Transformation, Business Risk Management, Scalability, Risk Management, Culture Transformation, Cross-Functional Collaboration, Data-Driven Decision-Making, Employee Training
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Photo Editing, Photography, Image Quality, Color Theory, Color Matching, Editing, Graphic and Visual Design, Computer Graphic Techniques
Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Event-Driven Programming, User Interface (UI), Software Design, UI Components, User Interface (UI) Design, Application Design, Development Environment, Cross Platform Development, Application Development, Data Entry
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Lean Six Sigma, Performance Improvement, Statistical Process Controls, Operational Analysis, Process Improvement, Statistical Methods, Continuous Improvement Process, Innovation, Operations Management, Probability & Statistics, Problem Solving
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computational Logic, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months