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.

University of Colorado Boulder
Skills you'll gain: Software Configuration Management, Embedded Software, Embedded Systems, Git (Version Control System), Version Control, Build Tools, Software Development Tools, C (Programming Language), Development Environment, Software Technical Review, Software Design, Hardware Architecture, Computer Architecture, Debugging
Intermediate · Course · 1 - 4 Weeks

Knowledge Accelerators
Skills you'll gain: Power BI, Data Presentation, Microsoft Excel, Dashboard, Excel Formulas, Data Modeling, Business Reporting, Data Entry, Data Analysis, Data Storytelling, Data-Driven Decision-Making, Business Analytics, Analytics, Business Modeling, Data Processing, Business Analysis, Data Cleansing, Data Synthesis, Trend Analysis, Data Management
Beginner · Specialization · 3 - 6 Months

Intermediate · Course · 1 - 3 Months

Skills you'll gain: iOS Development, Swift Programming, Apple iOS, Core Data (Software), Data Persistence, Test Driven Development (TDD), Mobile Development, Application Design, Application Deployment, Apple Xcode, Plot (Graphics), User Interface (UI), Data Store, Model View Controller, Machine Learning Software, Software Architecture, Performance Tuning, Database Development, Real Time Data, Data Integration
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: AI Orchestration, AI Workflows, LangGraph, Generative AI Agents, Agentic systems, OpenAI API, Enterprise Application Management, Tool Calling, OAuth, Middleware, Performance Tuning, Real Time Data, Interoperability, API Gateway, Agentic Workflows, Software Development Tools, LLM Application, Prompt Engineering, Retrieval-Augmented Generation, Application Programming Interface (API)
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: Postman API Platform, Continuous Delivery, Web Services, API Design, Business Logic, Application Programming Interface (API), CI/CD, Software Testing, Test Execution Engine, Restful API, Interactive Data Visualization, Test Case, Server Side, Application Development, Web Applications, Automation, Debugging, Data Modeling, Software Installation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Eight Disciplines Problem Solving (8D), Root Cause Analysis, Team Building, Cross-Functional Collaboration, Corrective and Preventive Action (CAPA), Complex Problem Solving, Solution Design, Service Improvement, Quality Improvement, Process Validation, Continuous Improvement Process, Verification And Validation
Intermediate · Course · 1 - 3 Months

PracticalGrowth
Skills you'll gain: Meeting Facilitation, Taking Meeting Minutes, Follow Through, Decision Making, Strategic Decision-Making, Collaboration, Planning, Brainstorming, Virtual Teams, Goal Setting, Conflict Management, Process Improvement, Time Management, Communication Strategies, Accountability, Workplace inclusivity, Business Communication
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Exploratory Data Analysis, Database Design, Shiny (R Package), Ggplot2, Data Wrangling, Data Visualization Software, Data Visualization, Relational Databases, Statistical Visualization, Statistical Analysis, Data Analysis, Rmarkdown, Model Evaluation, Data Presentation, SQL, Databases, Dashboard, Data Manipulation, Web Scraping, R Programming
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: User Feedback, Stakeholder Communications, Stakeholder Management, Project Management, Stakeholder Engagement, Project Design, Strategic Communication, Communication Strategies, Report Writing, Key Performance Indicators (KPIs), Process Improvement, Communication, Business Communication, Kanban Principles, Business Reporting, Project Planning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Application Security, Open Web Application Security Project (OWASP), Secure Coding, Authentications, OAuth, Development Testing, Software Development Life Cycle, Unified Modeling Language, Authorization (Computing), Single Sign-On (SSO), Software Development, Security Software, Vulnerability Assessments, Data Validation, Cyber Security Assessment, Cyber Security Strategy, Cybersecurity, Role-Based Access Control (RBAC)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, Embeddings, Tool Calling, AI Workflows, Generative AI Agents, Document Management, Query Languages, Text Mining, Context Management
Beginner · Course · 1 - 4 Weeks