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.

Board Infinity
Skills you'll gain: Test Automation, Performance Testing, Software Quality Assurance, White-Box Testing, API Testing, Test Script Development, Debugging, Software Development Methodologies, User Acceptance Testing (UAT), JUnit, Maintainability, Development Testing, Selenium (Software), Scalability, Automation, Software Technical Review, DevOps, Regression Testing, Test Execution Engine, Security Testing
Beginner · Specialization · 3 - 6 Months

Starweaver
Skills you'll gain: Business Process Modeling, Data Storytelling, Responsible AI, AI Product Strategy, Business Process, Digital Transformation, Business Process Management, Business Process Improvement, Process Design, Sales Presentations, Google Gemini, Sales Strategy, ChatGPT, Generative AI, Sustainable Development, Social Impact, Customer Relationship Management (CRM) Software, Innovation, Environmental Social And Corporate Governance (ESG), Product Knowledge
Intermediate · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: Claude Code, Vibe coding, Anthropic Claude, Model Context Protocol, Application Development, Command-Line Interface, Application Design, Programming Principles, Generative AI, Automation, Generative AI Agents, Image Analysis, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Responsive Web Design, Git (Version Control System), Web Development, Cascading Style Sheets (CSS), Data Persistence, React.js, Version Control, Web Development Tools, Performance Tuning, Full-Stack Web Development, GitHub, Event-Driven Programming, Application Design, Game Design, Webpack, Software Testing, Unit Testing, Software Development, Development Environment, Javascript
Beginner · Professional Certificate · 3 - 6 Months

Kennesaw State University
Skills you'll gain: Process Improvement, Six Sigma Methodology, Lean Six Sigma, Knowledge Transfer, Continuous Improvement Process, Lean Manufacturing, Quality Management, Product Design, Statistical Methods, Design and Product, Probability & Statistics
Mixed · Course · 1 - 3 Months

Skills you'll gain: Exploit development, OSI Models, Network Security, Exploitation techniques, TCP/IP, Cybersecurity, Vulnerability Scanning, Metasploit, Malware Protection, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Cyber Attacks, Wireless Networks, Application Security, Cyber Security Assessment, Network Monitoring, Linux, Object Oriented Programming (OOP), General Networking, Security Awareness
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Dashboard, Databases, Project Schedules, Data Visualization, Calendar Management, Customer Relationship Management (CRM) Software, Project Management, Project Documentation, Document Management, Content Development and Management, File Management, Collaboration, User Accounts
Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Grant Writing, Grant Applications, Proposal Writing, Clinical Research Ethics, Healthcare Ethics, Medical Science and Research, Planning, Research Design, Growth Mindedness, Science and Research, Budgeting, Resilience, Constructive Feedback, Mentorship, Goal Setting, Collaboration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Power Platform, Microsoft Power Automate/Flow, No-Code Development, Business Process Automation, Application Development, Application Design, Automation, Business Process, UI Components, Data Modeling
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Petroleum Industry, Oil and Gas, Environmental Regulations, Environmental Engineering, Pump Stations, Process Engineering, Chemical Engineering, Water Quality, Production Process, Hydraulics, Thermal Management, Three-Phase, Equipment Design
Beginner · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Construction Engineering, Civil Engineering, Electrical Systems, Transportation Operations, Building Information Modeling, Construction Management, Structural Engineering, Architectural Design, Quality Assurance, Planning, Emerging Technologies, Safety Standards
Intermediate · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Application Deployment, Mobile Development, JSON, Google Cloud Platform, Restful API, Application Design, UI Components, Geospatial Information and Technology, Application Programming Interface (API), Data Persistence, Animations
Mixed · Course · 1 - 3 Months