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: Test Planning, Software Testing, Debugging, Test Case, Issue Tracking, Functional Testing, Unit Testing, Software Quality Assurance, System Testing, Test Tools, Acceptance Testing, Integration Testing, Test Driven Development (TDD), Test Automation, Regression Testing, Quality Assurance, Waterfall Methodology, Agile Methodology, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design and Development, Software Testing, Web Development Tools, Maintainability
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Dashboard, Key Performance Indicators (KPIs), Performance Measurement, Business Intelligence, Tableau Software, Performance Analysis, Performance Review, Gap Analysis, Business Metrics, Data-Driven Decision-Making, Data Presentation, Performance Improvement, Business Analytics, Performance Management, Business Analysis, Data Analysis, Accountability, Data Validation
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: MarTech, Data Architecture, Digital Marketing, Marketing Strategies, Marketing Effectiveness, AI Personalization, Marketing Analytics, Data-Driven Decision-Making, Blockchain, Customer Insights, Consumer Behaviour, Data Integrity, Image Analysis, Analytics, Data Governance, Generative AI, Performance Measurement
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Program Development, Python Programming, Maintainability, Programming Principles, Scripting, Debugging, Scripting Languages, Computer Programming, Software Development, Functional Design, Computational Logic
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Consulting, Relationship Management, Business Consulting, Product Strategy, SAP Applications, Technical Consulting, Relationship Building, Project Management, Rapport Building, Consultative Approaches, Project Implementation, Agile Methodology, Company, Product, and Service Knowledge, Waterfall Methodology, Solution Delivery, Systems Thinking, Business Transformation, Digital Transformation, Design Thinking, Business Research
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Microsoft Excel, Excel Formulas, Data Management, Data Visualization, Spreadsheet Software, Data Validation, Data Cleansing, Data Analysis Expressions (DAX), Data Integrity, Productivity Software, Problem Solving
Beginner · Course · 1 - 3 Months

Skills you'll gain: AI Orchestration, AI Workflows, LangChain, Agentic Workflows, Tool Calling, LangGraph, LLM Application, Agentic systems, Generative AI Agents, Responsible AI, Retrieval-Augmented Generation, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Application Design, Prompt Engineering, Large Language Modeling, Context Management, Software Design Patterns, Software Development, Python Programming
Intermediate · Specialization · 1 - 3 Months
Rice University
Skills you'll gain: Event-Driven Programming, Application Development, Interactive Design, Animations, Programming Principles, Computer Graphics, Python Programming, Game Design, Computer Programming
Mixed · Course · 1 - 3 Months

Coursera
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Lakes, Data Security, Data Transformation, Apache Spark, Disaster Recovery, Cloud Infrastructure, Infrastructure as Code (IaC), Database Architecture and Administration, PySpark, Performance Tuning, Terraform, Data Warehousing, Extract, Transform, Load, Data Architecture, Data Integration, Cloud Computing, SQL, Data Pipelines, Data Governance, Apache Airflow
Intermediate · Specialization · 3 - 6 Months
Starweaver
Skills you'll gain: Financial Modeling, Microsoft Excel, Financial Forecasting, Excel Formulas, Revenue Forecasting, Financial Analysis, Business Modeling, Financial Statements, Risk Analysis, Balance Sheet, Forecasting, Data Validation, Cash Flows, Accounting, Working Capital, Operational Excellence
Beginner · Course · 1 - 4 Weeks