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: Data Pipelines, Apache Airflow, Data Integration, Cloud Deployment, Extract, Transform, Load, Cloud Computing, Data Processing, Data Cleansing, Data Warehousing, Maintainability
Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Algorithms, Computational Thinking, Theoretical Computer Science, Programming Principles, Computational Logic, Critical Thinking and Problem Solving, Performance Testing, Computer Science, Data Structures, Critical Thinking, Logical Reasoning, Graph Theory, Complex Problem Solving, Analysis, Game Theory
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Git (Version Control System), GitHub, Animation and Game Design, Application Deployment
Advanced · Course · 1 - 3 Months

Skills you'll gain: WordPress, Virtual Networking, Data Persistence
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Brand Awareness, Branding, Brand Strategy, Style Guides, Brand Loyalty, Brand Management, Auditing, Content Strategy, Graphic and Visual Design, Stakeholder Communications, Marketing Management, Case Studies, Report Writing, Consumer Behaviour
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Convolutional Neural Networks, Model Evaluation, Keras (Neural Network Library), Image Analysis, Deep Learning, Applied Machine Learning, Computer Vision, Dimensionality Reduction, PyTorch (Machine Learning Library), Tensorflow, Machine Learning Methods, Data Preprocessing, Performance Tuning, Artificial Intelligence
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Unit Testing, TypeScript, Angular, Software Testing, Frontend Performance, Software Architecture, Software Design, UI Components, Application Programming Interface (API), Restful API, Application Deployment, Performance Tuning, User Interface (UI), Authentications, JavaScript Frameworks, Scalability, Front-End Web Development, Node.JS, Authorization (Computing), Web Applications
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Timelines, Workflow Management, Project Controls, Project Schedules, Coordinating, Dashboard, Project Coordination, Project Performance, Calendar Management, Project Planning, Project Management, Time Management, Issue Tracking, Team Oriented, Project Management Software, Data Entry, Accountability, Organizational Skills, Goal Setting, Teamwork
Beginner · Specialization · 3 - 6 Months

Whizlabs
Skills you'll gain: Deep Learning, Convolutional Neural Networks, Image Analysis, Transfer Learning, Artificial Neural Networks, Model Evaluation, Computer Vision, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, ChatGPT, Incident Response, Responsible AI, Cyber Threat Intelligence, Vulnerability Management, Data Ethics, Vulnerability Assessments, Security Awareness, Cybersecurity, Threat Modeling, Cyber Security Strategy, Threat Detection, Scripting, Automation, Artificial Intelligence, Information Privacy, Technical Communication
Intermediate · Course · 1 - 3 Months

Skills you'll gain: HubSpot CRM, Social Media Marketing, Market Research, Surveys, Marketing Automation, Marketing, Customer Relationship Management, Brand Awareness, Social Media Management, Marketing Effectiveness, Customer Retention, Research Methodologies, Market Analysis, Customer Insights, Customer Acquisition Management, Customer Engagement, Customer Data Management, Customer Communications Management, Content Management, Analytics
Beginner · Course · 1 - 3 Months

Skills you'll gain: Deepseek, AI Workflows, LLM Application, Artificial Intelligence, Model Deployment, Large Language Modeling, Deep Learning, Software Installation, Development Environment, System Configuration, Code Review, Analysis
Intermediate · Course · 1 - 3 Months