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.

LearnKartS
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Performance Tuning, OS Process Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Canva (Software), Logo Design, Video Editing, Graphic and Visual Design Software, Graphic Design, Graphic and Visual Design, Graphics Software, Content Creation, Marketing Design, Marketing Materials, User Accounts, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Warehousing, Extract, Transform, Load, Snowflake Schema, Star Schema, Business Intelligence, Data Modeling, Database Design, Data Management, Data Integration, Performance Tuning, Databases, Data Transformation, Query Languages, Performance Improvement
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: AI Personalization, Personalized Service, Operations Support Systems, Customer Analysis, Telecommunications, Customer Retention, Network Performance Management, Responsible AI, Wireless Networks, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Network Architecture, Computer Networking, Emerging Technologies, Digital Communications, Generative AI Agents, Generative AI, Network Protocols, System Design and Implementation, Communication
Advanced · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Javascript, Event-Driven Programming, Web Design and Development, Interactive Design, Web Applications, Interaction Design, Scripting, Web Development, Data Validation
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Promotional Strategies, Entrepreneurship, Product Promotion, Organizational Structure, Business Leadership, Content Creation, Entrepreneurial Finance, Target Audience, Digital Content, Digital Transformation, New Business Development, Business Modeling, Strategic Partnership, Innovation, Consumer Behaviour, Fiscal Management, Fundraising and Crowdsourcing, Digital Media Strategy, Intellectual Property
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Relational Databases, Database Application, Database Management, Database Development, SQL, Databases, Database Systems, MySQL, Database Management Systems, Database Software, Database Design, Transaction Processing, Stored Procedure, Data Access, Application Development, Java, Data Integrity, Performance Tuning
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Technical Analysis, Data Literacy, Financial Trading, Financial Market, Descriptive Statistics, Market Data, Statistics, Portfolio Risk, Statistical Methods, Derivatives, Risk Modeling, Market Analysis, Statistical Analysis, Market Dynamics, Securities Trading, Risk Analysis, Verification And Validation, Securities (Finance), Data Analysis, International Finance
Beginner · Specialization · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Design Thinking, Innovation, Creative Problem-Solving, Ideation, Creative Thinking, New Product Development, Open Mindset, Cognitive flexibility, Creativity, Lean Methodologies, Customer Engagement, Product Development
Advanced · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: GitHub Copilot, Model Context Protocol, GitHub, Responsible AI, Git (Version Control System), Model Evaluation, AI Integrations, Object-Relational Mapping, Package and Software Management, Restful API, Open Source Technology, CI/CD, AI Security, Security Controls, Generative AI, Agentic Workflows, Security Strategy, Enterprise Architecture, Automation Engineering, Machine Learning
Beginner · Specialization · 3 - 6 Months

KodeKloud
Skills you'll gain: Amazon Bedrock, AWS SageMaker, Generative Model Architectures, Risking, Artificial Intelligence, LLM Application, Large Language Modeling, AI Workflows, AWS Identity and Access Management (IAM), Cloud Solutions, Cloud Engineering, Cloud Development, Cloud Computing, Cloud Management, Cloud Services, Automation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Context Engineering, Agentic Workflows, AI Orchestration, Tool Calling, Generative AI, Gemini, Artificial Intelligence, Google Gemini, Retrieval-Augmented Generation, Model Optimization, Embeddings, Workflow Management, Python Programming, Data Validation
Beginner · Course · 1 - 4 Weeks