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 Security, Threat Modeling, Role-Based Access Control (RBAC), Cloud Security, Data Governance, Secure Coding, Data Security, DevSecOps, Data Management, Infrastructure as Code (IaC), Enterprise Security, Zero Trust Network Access, Application Security, Infrastructure Security, Security Controls, Threat Management, Security Requirements Analysis, Data Quality, Compliance Management, Identity and Access Management
Intermediate Ā· Course Ā· 3 - 6 Months

Skills you'll gain: Canva (Software), Graphical Tools, Design, Graphic and Visual Design Software, Creative Design, Branding, Visual Storytelling, Graphic and Visual Design, Graphic Design, Brand Strategy, Shared Media, Brand Management, Account Management, Marketing Communications
Beginner Ā· Guided Project Ā· Less Than 2 Hours

Harvard Business Review
Skills you'll gain: Team Performance Management, Teamwork, Team Building, Team Collaboration, Team Management, Virtual Teams, Collaboration, Intercultural Competence, Team Leadership, Conflict Management, Team Motivation, Performance Measurement, Performance Analysis, Cooperation, Productivity, Cultural Diversity, Cultural Sensitivity, Drive Engagement
Intermediate Ā· Course Ā· 1 - 4 Weeks
Skills you'll gain: Waste Minimization, Environmental Social And Corporate Governance (ESG), Sustainable Technologies, Environmental Regulations, Sustainable Business, Environmental Laws, Environmental Monitoring, Sustainability Standards, Sustainable Engineering, Sustainable Development, Sustainable Design, Sustainability Reporting, Corporate Sustainability, Compliance Management, Regulatory Compliance, Manufacturing and Production, Environmental Engineering, Manufacturing Processes, Energy and Utilities, Innovation
Intermediate Ā· Course Ā· 1 - 4 Weeks

AI CERTs
Skills you'll gain: Customer Communications Management, Data Ethics, AI Integrations, Agentic Workflows, Quality Monitoring, Emerging Technologies
Beginner Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Dataflow, Real Time Data, Data Pipelines, Data Transformation, Data Integration, Data Processing, Extract, Transform, Load, Power BI, PySpark, Apache Spark, Data Quality, Data Store, Data Governance, Analytics
Intermediate Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Responsive Web Design, Web Design, Hypertext Markup Language (HTML), Front-End Web Development, Semantic Web, Web Development, Typography
Intermediate Ā· Guided Project Ā· Less Than 2 Hours

Skills you'll gain: OSI Models, TCP/IP, Network Protocols, Systems Analysis, Linux, Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Analysis, Linux Administration, Virtual Machines, General Networking, Networking Hardware, Virtualization and Virtual Machines, Network Support, Virtualization, System Configuration, Network Architecture, Computer Networking, Network Model, Software Installation
Intermediate Ā· Course Ā· 1 - 4 Weeks

Columbia University
Skills you'll gain: Systems Thinking, Social Justice, Economics, Policy, and Social Studies, Social Sciences, Complex Problem Solving, Political Sciences, Systems Analysis, Persuasive Communication, Personal Development, Critical Thinking, Education and Training, Scientific Methods
Beginner Ā· Course Ā· 1 - 3 Months

Skills you'll gain: API Gateway, Amazon CloudWatch, API Design, Amazon Web Services, Cloud-Based Integration, Microservices, Event-Driven Programming, Cloud Deployment, Data Validation
ā 5 (8) Ā· Beginner Ā· Course Ā· 1 - 4 Weeks

Northeastern University
Skills you'll gain: Organizational Change, Stakeholder Management, Change Management, Organizational Strategy, Organizational Development, Team Management, Leadership and Management, Stakeholder Engagement, Organizational Leadership, Culture Transformation, Team Building, Service Management, Innovation, Team Leadership, Service Design, Service Improvement, Healthcare Project Management, Process Management, Process Design, Leadership
Beginner Ā· Course Ā· 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Vulnerability Scanning, Vulnerability Management, Vulnerability Assessments, Risk Management, Secure Coding, Cyber Security Assessment, Security Testing, Systems Development Life Cycle, Cyber Governance, Risk Management Framework, Threat Management, Cyber Attacks, Software Development Life Cycle, Application Security, Cyber Security Policies, Threat Detection, Security Management, Security Requirements Analysis, Security Controls
ā 5 (6) Ā· Intermediate Ā· Course Ā· 1 - 4 Weeks