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.

Cisco Learning and Certifications
Skills you'll gain: iSCSI Configuration, Data Centers, Network Switches, Data Storage, Network Infrastructure, Data Storage Technologies, Networking Hardware, General Networking, Network Protocols, Interoperability, System Configuration
Beginner · Course · 1 - 3 Months

Skills you'll gain: Market Data, Financial Analysis, Investment Management, Return On Investment, Portfolio Risk, Accruals
Beginner · Course · 1 - 4 Weeks

IESE Business School
Skills you'll gain: Time Management, Prioritization, Organizational Skills, Adaptability, Cooperation, Personal Development, Professional Development, Collaboration, Planning, Management Training And Development, Organizational Leadership, Initiative and Leadership, Self-Awareness, Goal Setting, Family Support
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PHP (Scripting Language), Web Applications, Server Side, Hypertext Markup Language (HTML), Web Development, Web Servers, Scripting, Web Frameworks, Scripting Languages, Development Environment, Programming Principles, Computational Logic, Software Installation
Intermediate · Course · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: AI Security, Vector Databases, Data Strategy, Data Management, Data Architecture, Data Security, Data Governance, Generative AI Agents, Metadata Management, Containerization, Data Ethics, Interoperability, Data Store, Retrieval-Augmented Generation, Taxonomy, Data Storage, Data Processing, Large Language Modeling, Machine Learning, Agentic systems
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Keyword Research, Business Planning, Business Modeling, iOS Development, Business Strategy, Entrepreneurship, Strategic Marketing, Promotional Strategies, Marketing Strategies, Growth Strategies, Earned Media, Search Engine Optimization, Revenue Management, Go To Market Strategy, Product Promotion, Competitive Analysis, Advertising
Mixed · Course · 1 - 3 Months
STARWEAVER
Skills you'll gain: Virtual Private Networks (VPN), Security Information and Event Management (SIEM), Virtual Local Area Network (VLAN), Network Security, Remote Access Systems, Cyber Security Strategy, Firewall, Continuous Monitoring, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Security Controls, Network Administration, IT Security Architecture, Network Engineering, Authentications, Network Architecture, Network Planning And Design, Network Monitoring, Incident Response
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Agentic systems, Tool Calling, Agentic Workflows, Generative AI Agents, Gemini, Google Gemini, LLM Application, AI Integrations, OpenAI, Middleware, Angular, Development Environment, Server Side, Systems Architecture, Node.JS, Frontend Integration, Debugging, Data Validation
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Infrastructure as Code (IaC), Cloud Deployment, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JavaScript Frameworks, Frontend Integration, Angular, Cloud Deployment, Amazon Elastic Compute Cloud, Web Applications, Code Reusability, Server Side, Test Script Development, Unit Testing, Development Testing, Object-Relational Mapping, Maintainability, Package and Software Management, Data Modeling
Intermediate · Course · 3 - 6 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Cloud Computing, Cloud Security, Cloud Hosting, Amazon Web Services, Cloud Infrastructure, Cloud Computing Architecture, Cloud Solutions, Cloud Services, Amazon S3, Distributed Computing, Amazon Elastic Compute Cloud, Cloud Management, Capacity Management, Cloud Deployment, Infrastructure As A Service (IaaS), Virtualization, Cloud Storage, Software As A Service, Virtualization and Virtual Machines, AWS Identity and Access Management (IAM)
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Salesforce, Administration, Role-Based Access Control (RBAC), Data Sharing, User Provisioning, Systems Administration, Security Controls, Data Access, User Accounts, System Configuration, Workflow Management, Data Validation, Identity and Access Management, Information Architecture, Calendar Management, Data Integrity, Data Quality, Customer Relationship Management (CRM) Software
Beginner · Course · 1 - 3 Months