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: AI Security, Open Web Application Security Project (OWASP), Vulnerability Assessments, Vulnerability Management, Application Security, Security Controls, Security Testing, Authentications, Threat Management, Dependency Analysis, Application Programming Interface (API), API Design, Risk Analysis, Data Validation, Supply Chain
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Database Design, MySQL, IBM DB2, Relational Databases, Databases, Database Management, PostgreSQL, Data Management, Database Architecture and Administration, SQL, Data Integrity, Data Modeling, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Excel, Dashboard, Data Visualization, Spreadsheet Software, Data Presentation, Excel Formulas, Stakeholder Communications, Project Coordination, Project Management, Technical Communication, Operational Efficiency, Project Planning, Prioritization, Data-Driven Decision-Making, Scheduling, Performance Analysis, Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: CI/CD, Microsoft Azure, Data Lakes, Microsoft Power Platform, Azure Synapse Analytics, Data Pipelines, Analytics, Data Governance, Advanced Analytics, Data Security, Data Management, Data Analysis Expressions (DAX), Power BI, Microsoft Excel, Exploratory Data Analysis, Apache Spark, Application Deployment, SQL, Governance, Version Control
Intermediate · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Blockchain, Program Development, Development Environment, Web Language, Web Development Tools, Integrated Development Environments, Programming Principles, Solution Design, Business Logic, Event-Driven Programming, Transaction Processing, Data Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Analytics, Data Storytelling, Content Performance Analysis, Web Analytics and SEO, Data Validation, Stakeholder Engagement, Statistical Modeling, Search Engine Optimization, Marketing Analytics, Web Analytics, Marketing Automation, Data Visualization, Customer Insights, Data-Driven Decision-Making, Campaign Management, Key Performance Indicators (KPIs), Predictive Analytics, Performance Measurement, Return On Investment, Artificial Intelligence
Intermediate · Specialization · 3 - 6 Months

Politecnico di Milano
Skills you'll gain: Pedagogy, Digital pedagogy, Instructional Design, Educational Materials, Innovation, Learning Theory, Learning Strategies, Creativity, Planning, Problem Solving
Beginner · Course · 1 - 3 Months

Skills you'll gain: Project Schedules, Project Planning, Scheduling, Budget Management, Communication Planning, Timelines, Project Performance, Team Leadership, Project Estimation, Performance Analysis, Gap Analysis, Estimation
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: SQL, Database Systems, Database Theory, Database Management, Query Languages, Database Design, Relational Databases, Database Administration, Database Application, Data Access, Data Science, Data Analysis, Data Manipulation, Data Modeling, Data Integrity
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: AI Orchestration, Model Deployment, AI Workflows, Agentic Workflows, Generative AI Agents, Agentic systems, AI Security, Artificial Intelligence, Prompt Engineering, Generative AI, Product Support, OpenAI API, Retrieval-Augmented Generation
Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Model Deployment, LLM Application, Large Language Modeling, System Monitoring, Scalability, Hugging Face, Cloud Deployment, Performance Tuning, MLOps (Machine Learning Operations), Prompt Engineering, Transfer Learning, AI Security, Applied Machine Learning, Application Security, Artificial Intelligence, API Design, Model Evaluation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extract, Transform, Load, Star Schema, Microsoft Power Platform, Data Analysis Expressions (DAX), Data Storytelling, Microsoft Power Automate/Flow, Dashboard, Microsoft Excel, Excel Formulas, Power BI, Data-Driven Decision-Making, Microsoft Copilot, Data Presentation, No-Code Development, Data Transformation, Data Literacy, Data Modeling, Data Visualization, Data Analysis, Business Intelligence
Beginner · Specialization · 3 - 6 Months