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: Safety Culture, Behavioral Management, Behavior Management, Accident Prevention, Safety Training, Positive Behavior Support, Safety Assurance, Applied Behavior Analysis, Proactivity, Coaching, Trustworthiness, Constructive Feedback, Recognizing Others, Case Studies
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Networking Hardware, Network Monitoring, OSI Models, Routing Protocols, Software-Defined Networking, Network Troubleshooting, Network Architecture, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, General Networking, Network Security, TCP/IP, Network Routing, Computer Networking, Open Shortest Path First (OSPF), Cloud Technologies, Network Infrastructure, Hardening, Network Performance Management, Authentications
★ 4.5 (18) · Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Stored Procedure, Database Design, Database Systems, Role-Based Access Control (RBAC), SQL, MySQL Workbench, Database Software, Database Theory, Database Management, MySQL, Database Development, Relational Databases, Databases, Database Management Systems, PostgreSQL, Database Administration, Data Management, NoSQL, Data Analysis, Data Modeling
Beginner · Specialization · 1 - 3 Months

Alfaisal University | KLD
Skills you'll gain: Personal Attributes, Leadership Studies, Cooperation, Goal-Oriented, Professionalism, Collaboration, Organizational Effectiveness, Growth Mindedness, Strategic Leadership, Leadership, Business Leadership, Prioritization, Analytical Skills, Business Strategies
★ 4.9 (22) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Workflows, Agentic Workflows, Generative AI Agents, AI Orchestration, Model Deployment, Automation, No-Code Development, AI Integrations, Prompt Engineering, Process Optimization, System Monitoring, Performance Analysis, Performance Management
★ 4.9 (7) · Intermediate · Course · 1 - 4 Weeks

The State University of New York
Skills you'll gain: digital literacy, Information Management, Research, Literacy, Lifelong Learning, Investigation, Critical Thinking, Analytical Skills, Intellectual Property, Planning, Communication, Constructive Feedback, Style Guides
★ 4.8 (11) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Design, Design Elements And Principles, Graphic and Visual Design, Digital Design, Graphic Design, Developing Training Materials, Color Theory, Journals, Digital Publishing, Marketing
★ 4.5 (12) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: LinkedIn, Professional Networking, Blogs, Content Marketing, Customer Engagement, Content Performance Analysis, Cloud Platforms, Marketing Analytics, Collaborative Software, Content Creation, Business Technologies, Business Marketing, Content Development and Management, Advertising Campaigns, Sales Prospecting, Social Media Content, Customer Relationship Building, Social Media, Social Media Marketing, Marketing
Beginner · Specialization · 3 - 6 Months

Universidad Tecnológica Centroamericana
Skills you'll gain: Teaching, Blended Learning, Business Strategy, Business Planning, Digital pedagogy, Education and Training, Strategic Thinking, Instructional Strategies, Pedagogy, Lesson Planning, Interactive Learning, Education Software and Technology, Business Modeling, Entrepreneurship, Program Evaluation, Instructional and Curriculum Design, Proposal Development, Project Design, Program Implementation, Curriculum Planning
★ 4.5 (34) · Intermediate · Specialization · 3 - 6 Months

Peking University
Skills you'll gain: Epidemiology, Public Health and Disease Prevention, Health Policy, Public Health, Research Design, Research Methodologies, Research, Medical Science and Research, Health Promotion, Preventative Care, Social Determinants Of Health, Statistical Analysis, Risk Analysis
★ 4.8 (25) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Agentic systems, Code Reusability, AI Integrations, Engineering Software, Systems Architecture, API Design, Systems Design, Solution Architecture, Artifactory, Generative Model Architectures, Release Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Deployment, Kubernetes, Network Troubleshooting, Performance Tuning, Network Performance Management, Network Routing, Network Security, Network Planning And Design, Network Administration, Scalability
★ 3.6 (18) · Advanced · Course · 1 - 4 Weeks