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, Microsoft Excel, Data Visualization, Spreadsheet Software, Data Literacy, Productivity Software, Data Science, Business Writing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Cryptography, Encryption, Key Management, Python Programming, Scripting, User Interface (UI), UI Components, Application Development
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Scripting Languages, Network Monitoring, Network Engineering, Network Troubleshooting, Development Environment, Debugging, Authentications
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Routing Protocols, Network Planning And Design
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), React.js, HTML and CSS, Front-End Web Development, Hypertext Markup Language (HTML), Web Development, Web Design, JavaScript Frameworks, Javascript, Restful API, UI Components, Event-Driven Programming
Beginner · Course · 3 - 6 Months

Packt
Skills you'll gain: Web Development Tools, Vibe coding, Application Programming Interface (API), AI powered creativity, Git (Version Control System), Application Development, GitHub, AI Integrations, Version Control, Application Deployment, Software As A Service, Full-Stack Web Development, Web Design and Development, Web Development, Generative AI, Application Design, Web Applications, User Interface (UI), Authentications, Payment Systems
Beginner · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Secure Coding, Application Programming Interface (API), API Design, Authentications, Server Side, MongoDB, Restful API, Full-Stack Web Development, Development Environment, Back-End Web Development, Package and Software Management, Object-Relational Mapping, Database Development, Middleware, JSON, User Accounts, Data Modeling
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Retrieval-Augmented Generation, AI Workflows, Agentic Workflows, Vector Databases, LangGraph, LangChain, LLM Application, Generative AI Agents, Embeddings, Application Performance Management, Large Language Modeling, Agentic systems, Semantic Web, Software Visualization, Performance Tuning, Context Management, Debugging, Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Robotic Process Automation, Social Media Management, Social Media, Social Media Analytics, Business Process Automation, Microsoft Excel, Automation, Market Analysis, Solution Design, Secure Coding, Process Design, Image Analysis, Brand Management, Data Import/Export, UI Components, Web Scraping, Data Validation, Verification And Validation
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Interactive Data Visualization, Data Visualization, Heat Maps, Spatial Data Analysis, Data Visualization Software, Technical Communication, Geospatial Mapping, Data Mapping, Interactive Design, Hypertext Markup Language (HTML), GitHub, Usability, Public Health, Document Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Collaborative Software, Taking Meeting Minutes, Meeting Facilitation, Project Documentation, Productivity Software, Document Management, Team Oriented, Shared Media, Workflow Management, Accountability, Team Management, Action Oriented, Decision Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Milestones (Project Management), Project Schedules, Timelines, Scheduling, Project Controls, Microsoft Excel, Project Management Software, Project Estimation, Project Planning, Dependency Analysis, Project Management, Dashboard, Data Visualization, Project Documentation, Diagram Design, Excel Formulas, Spreadsheet Software, Report Writing, Stakeholder Communications
Beginner · Course · 1 - 3 Months