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.

Duke University
Skills you'll gain: Debugging, File I/O, Programming Principles, Maintainability, Software Testing, Program Development, C (Programming Language), Algorithms, Simulations, System Programming, Computer Programming, Data Structures, Software Development, Software Engineering, Command-Line Interface, Operating Systems, Development Environment, User Interface (UI), Problem Solving, Software Design
Beginner · Specialization · 3 - 6 Months
LearnQuest
Skills you'll gain: Java Programming, Java, File I/O, Eclipse (Software), Object Oriented Programming (OOP), Object Oriented Design, Integrated Development Environments, Development Environment, Software Design, Computer Programming, Application Frameworks, Programming Principles, Virtual Machines, Web Development, Debugging, Data Persistence, Package and Software Management, Data Structures
Intermediate · Specialization · 3 - 6 Months

Arizona State University
Skills you'll gain: Statistical Methods, Bayesian Statistics, Statistics, Probability & Statistics, Data Storage Technologies, Analytical Skills, Exploratory Data Analysis, Data Storage, Database Software, Estimation, Data-Driven Decision-Making, Applied Machine Learning, Supervised Learning, Markov Model, Logistic Regression, Statistical Hypothesis Testing, Predictive Modeling, Simulations, Simulation and Simulation Software, Regression Testing
Intermediate · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Microsoft Access, Database Design, Relational Databases, Database Management, Excel Macros, Microsoft 365, Database Development, Database Administration, Database Architecture and Administration, Data Integrity, Data Maintenance, Microsoft Windows, Databases, Microsoft Office, Data Entry, Query Languages, Data Presentation, Productivity Software, User Interface (UI), Scripting
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: CI/CD, Jenkins, Kubernetes, Docker (Software), Devops Tools, DevOps, Continuous Integration, Containerization, Application Deployment, Cloud Deployment, GitHub, Version Control, System Configuration
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Dashboard, Project Management Software, Project Coordination, Project Schedules, Timelines, Productivity Software
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft SQL Servers, Database Design, Relational Databases, Stored Procedure, SQL, Databases, Loyalty Programs, Enterprise Application Management, Database Management, Workflow Management, Transaction Processing, Customer Data Management, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, User Interface (UI), Android Development, C# (Programming Language), Video Game Development, GitHub, Animation and Game Design, User Interface (UI) Design, Mobile Development, 3D Assets, User Interface and User Experience (UI/UX) Design, Microsoft Visual Studio, System Implementation, Software Installation
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Splunk, Data Transformation, Dashboard, Statistical Visualization, Data Visualization Software, Statistical Analysis, Data Manipulation, Scatter Plots, Time Series Analysis and Forecasting, Correlation Analysis, Event Monitoring, Security Information and Event Management (SIEM), Geospatial Mapping
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: LangChain, LangGraph, Model Context Protocol, AI Workflows, LLM Application, AI Orchestration, Agentic Workflows, Generative AI Agents, Tool Calling, Model Deployment, Data Transformation, Retrieval-Augmented Generation, Agentic systems, Generative AI, Middleware, Gemini, Scalability, Artificial Intelligence, Prompt Engineering, Responsible AI
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Web Applications, HTML and CSS, Front-End Web Development, Web Design and Development, Javascript, Application Design, Application Development, Data Validation, UI Components, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: .NET Framework, Databases, Application Development
Beginner · Course · 1 - 4 Weeks