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.

Skills you'll gain: HTML and CSS, Bootstrap (Front-End Framework), Cascading Style Sheets (CSS), Responsive Web Design, Web Design and Development, Web Applications, Animations, UI Components, Typography, Maintainability, Javascript
Advanced · Course · 3 - 6 Months

Skills you'll gain: API Testing, React.js, Authentications, Containerization, OAuth, Cloud Deployment, Back-End Web Development, PostgreSQL, API Gateway, Software Documentation, Amazon Web Services, Cloud Applications, Event-Driven Programming, Front-End Web Development, Python Programming, Database Management, Restful API, SQL, API Design, Databases
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: No-Code Development, Workflow Management, Business Process Modeling, Process Mapping, Business Process, Data Integration
Intermediate · Course · 1 - 4 Weeks

University of Toronto
Skills you'll gain: Control Systems, Robotics, Embedded Software, Automation, Software Architecture, Simulations, Safety Assurance, Hardware Architecture, Systems Architecture, Computer Vision, Mathematical Modeling, Safety Standards, Global Positioning Systems
Advanced · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Prompt Engineering, Responsive Web Design, Node.JS, Command-Line Interface, Unit Testing, TypeScript, Web Content Accessibility Guidelines, SQL, Cascading Style Sheets (CSS), Ajax, React.js, HTML and CSS, User Interface and User Experience (UI/UX) Design, Mobile Development, JavaScript Frameworks, Hypertext Markup Language (HTML), Web Development, Generative AI, UI Components, Database Design
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Search Engine Marketing, Research, Competitive Intelligence, Digital Marketing, Content Creation, Content Performance Analysis, Data-Driven Decision-Making, ChatGPT, Content Strategy, Content Marketing, Marketing Analytics, Digital Content, Web Analytics, AI Enablement, Generative AI, Content Management, Analytics
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Fraud detection, Financial Controls, Regulatory Documents, Auditing, Payment Processing and Collection, Accounting, Standard Accounting Practices, Internal Controls, Transaction Processing, Compliance Auditing, Verification And Validation, Document Control
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Responsible AI, Agentic Workflows, Risking, Generative AI Agents, AI Enablement, Artificial Intelligence and Machine Learning (AI/ML), Power BI, AI Workflows, Accounting and Finance Software, Regulatory Compliance, Automation, Financial Data, Wealth Management, Compliance Management, Generative AI, Financial Forecasting, Data Processing, Finance, Workflow Management, General Finance
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Competitive Analysis, Keyword Research, Search Engine Optimization, Competitive Intelligence, Social Media Strategy, Web Analytics and SEO, Market Opportunities, Content Strategy, Market Intelligence, Strategic Thinking, Search Engine Marketing, Digital Marketing, Target Audience, Market Research
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Apache Kafka, Data Loss Prevention, Performance Tuning, System Monitoring, Prometheus (Software), Scalability, Real Time Data, Grafana, Process Optimization, Distributed Computing, System Configuration, Command-Line Interface, Content Strategy
Intermediate · Course · 1 - 4 Weeks

JetBrains
Skills you'll gain: Integrated Development Environments, File I/O, Software Development Tools, Python Programming, Development Environment, Data Structures, Computer Programming, Programming Principles, Scripting, Maintainability, Code Review, Data Processing, NumPy, Computational Thinking, Software Installation, Numerical Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML)
Beginner · Course · 1 - 4 Weeks