Design Patterns courses can help you learn object-oriented design principles, common design patterns like Singleton and Observer, and best practices for software architecture. You can build skills in code refactoring, improving maintainability, and enhancing collaboration among developers. Many courses introduce tools such as UML for visualizing design structures and integrated development environments (IDEs) that facilitate pattern implementation, allowing you to apply these concepts in real coding projects.

Ball State University
Skills you'll gain: Cryptography, Application Security, Encryption, Authentications, Cybersecurity, Data Encryption Standard, Advanced Encryption Standard (AES), Email Security, Network Security, Information Systems Security, Key Management, Application Development, Public Key Infrastructure, Data Integrity
Build toward a degree
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Cascading Style Sheets (CSS), HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Bootstrap (Front-End Framework), Web Design, Web Design and Development, Front-End Web Development, User Interface and User Experience (UI/UX) Design, UI Components, Typography
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Authorization (Computing), Azure Active Directory, Cloud Infrastructure, Authentications, Cloud Security, Event Monitoring, Role-Based Access Control (RBAC), Infrastructure Security, Identity and Access Management, System Monitoring, Cloud Computing Architecture, Cloud Management, Application Design, Network Monitoring, Data Governance, Personally Identifiable Information, Security Management, Information Management, Solution Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Selenium (Software), Test Tools, Test Case, Software Testing, Test Execution Engine, Test Data, Apache Maven, Automation, Application Frameworks, Java, Extensible Markup Language (XML), Data Import/Export
Beginner · Course · 1 - 3 Months

Skills you'll gain: Design, Graphic and Visual Design, Photography, Photo Editing, Photo/Video Production and Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LLM Application, OpenAI, Generative AI Agents, Agentic systems, Tool Calling, Prompt Engineering, ChatGPT, Artificial Intelligence, Application Programming Interface (API), User Interface (UI), Large Language Modeling, Python Programming, Development Environment, Application Deployment, JSON, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Bash (Scripting Language), Shell Script, Linux Commands, Unix Shell, Scripting, Linux, Unix Commands, Command-Line Interface, User Interface (UI), IT Automation, Interactive Design, Programming Principles, Debugging, OS Process Management, File Management
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: File Transfer Protocol (FTP), Transaction Processing, Verification And Validation, Integration Testing, Data Integration, System Testing, Data Validation, Development Testing, Middleware, Systems Integration, Databases
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: 3D Assets, 3D Modeling, Computer Graphics, Animation and Game Design
Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Test Case, Test Planning, Test Automation, System Testing, Continuous Integration, Acceptance Testing, Test Tools, CI/CD, Software Quality Assurance, Continuous Delivery, Regression Testing, Quality Assurance, Selenium (Software), Software Development Tools, Debugging
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Software Engineering, Programming Principles, Computer Programming, Software Design, Predictive Modeling, Algorithms, Data Structures, Performance Tuning, Performance Testing, Debugging, Application Programming Interface (API), Development Testing
Beginner · Course · 1 - 3 Months

Skills you'll gain: SQL Server Integration Services (SSIS), Extract, Transform, Load, Data Warehousing, Data Transformation, Data Manipulation, Data Analysis, Microsoft SQL Servers, Data Integration, Data Processing, SQL, Dataflow, Workflow Management, Data Cleansing
Mixed · Course · 1 - 3 Months