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: Figma (Design Software), User Interface (UI), UI Components, User Interface and User Experience (UI/UX) Design, User Interface (UI) Design, Digital Design, User Experience, Style Guides, Prototyping, Interactive Design, Typography
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Robotics, Machine Controls, Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), CI/CD, Continuous Integration, Artificial Intelligence, 3D Modeling, Large Language Modeling, Agentic Workflows, Continuous Deployment, Docker (Software), Agentic systems, Simulation and Simulation Software, LLM Application, Containerization, Ubuntu, Python Programming, Linux, C++ (Programming Language)
Intermediate · Specialization · 3 - 6 Months

Alex Genadinik
Skills you'll gain: E-Commerce, Content Creation, Digital Content, Video Production, Digital Publishing, Wholesaling, Digital Assets, Pay Per Click Advertising, Entrepreneurship, Direct Selling, Marketing Channel, Blockchain, Subcontracting, Search Engine Optimization
Mixed · Course · 1 - 3 Months

Skills you'll gain: Programmable Logic Controllers, Computational Logic, Code Reusability, Data Structures, Diagram Design, Dataflow, Microsoft Azure, Automation, Program Development, Performance Tuning, Data Management, System Configuration, Interactive Data Visualization, Data Integration, Functional Design, Fine-tuning, Communication, Simulations
Intermediate · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Data Structures, Data Processing, Code Reusability, Virtual Machines, Verification And Validation, Program Development, Python Programming, Maintainability, Data Manipulation, Programming Principles, Scripting, Development Environment, Scripting Languages, Computer Programming, Software Installation, Debugging, Software Development, Computer Programming Tools, Computational Logic, Cross Platform Development
★ 4.3 (6) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Sales Presentation, Presentations, Sales Presentations, Product Demonstration, Microsoft PowerPoint, Microsoft Office, Customer Analysis, Competitive Analysis, Productivity Software, Business Communication, Value Propositions
★ 4.8 (38) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Unreal Engine, Virtual Environment, 3D Assets, Game Design, Post-Production, Cinematography, Image Quality, Model Optimization
Mixed · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon DynamoDB, Amazon Web Services, Amazon Redshift, Databases, Database Design, Relational Databases, Database Management Systems, Apache Cassandra, NoSQL, Data Warehousing, Redis, Data Analysis Expressions (DAX)
★ 4.2 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Performance Measurement, Business Intelligence Software, Interactive Data Visualization, Data Presentation, Analytics, Business Reporting, Dataflow, Anomaly Detection, Machine Learning
★ 4.3 (12) · Intermediate · Course · 1 - 4 Weeks

Tsinghua University
Skills you'll gain: Data Structures, Database Management Systems, System Design and Implementation, Programming Principles, Algorithms
Intermediate · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Cooperation, Teamwork, Collaboration, Sustainable Development, Decision Making, Sustainable Systems, Business Transformation, Social Justice, Environmental Issue, Political Sciences, Social Impact, Socioeconomics, Action Oriented, Social Sciences, Systems Thinking, Visionary, Economic Development, Corporate Sustainability, Economics, Policy, and Social Studies, Empowerment
★ 4.6 (19) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Anomaly Detection, Computer Vision, Image Analysis, Microsoft Azure, Data Ethics, Artificial Intelligence, Natural Language Processing, AI Workflows, AI literacy, Machine Learning
★ 4.3 (26) · Beginner · Course · 1 - 4 Weeks