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: 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, Active Directory, Network Monitoring, Data Governance, Cloud Applications, Personally Identifiable Information, Security Management, Information Management
Intermediate · Course · 1 - 4 Weeks

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

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

University at Buffalo
Skills you'll gain: Electrical Systems, Electrical Wiring, HVAC, Building Design, Construction Inspection, Basic Electrical Systems, Engineering Calculations, Architectural Design, System Requirements, Mechanical Design, Building Codes, Structural Analysis, Cost Estimation
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Test Case, Test Script Development, Test Planning, Test Automation, Test Engineering, Acceptance Testing, Test Tools, White-Box Testing, CI/CD, Software Quality Assurance, Test Data, Regression Testing, Quality Assurance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Retail Store Operations, Competitive Analysis, Business Strategy, Organizational Strategy, Strategic Thinking, Market Analysis, Organizational Structure, Case Studies, Business Strategies, Strategic Planning, Sustainable Business, Market Share, Customer Analysis, Organizational Development, Talent Management, Strategic Decision-Making, Intellectual Property, Financial Analysis
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Responsive Web Design, Cascading Style Sheets (CSS), Bootstrap (Front-End Framework), Web Design, User Interface (UI), Front-End Web Development, Web Development, Typography, Animations
Mixed · Course · 1 - 4 Weeks

University of Toronto
Skills you'll gain: Apple iOS, Swift Programming, Apple Xcode, Mobile Development, Application Design, Application Development, User Interface (UI), Interaction Design, Data Persistence, Animations, Computer Graphics, Persistence, Storyboarding, Network Model
Mixed · Course · 1 - 3 Months

Skills you'll gain: Matplotlib, Plot (Graphics), Scientific Visualization, Data Visualization, Data Presentation
Mixed · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Serverless Computing, Amazon Web Services, Amazon CloudWatch, Amazon Elastic Compute Cloud, Cloud Management, Load Balancing, Amazon S3, AWS Identity and Access Management (IAM), Cloud Computing Architecture, Cloud Applications, System Monitoring, API Gateway, Scalability, Application Deployment, Cloud Storage
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Salesforce, Salesforce Development, Customer Relationship Management, Data Security, Security Controls, No-Code Development, Automation, Identity and Access Management
Intermediate · Course · 1 - 4 Weeks
Johns Hopkins University
Skills you'll gain: Clinical Trials, Clinical Research, Clinical Research Ethics, Good Clinical Practices (GCP), Informed Consent, Biostatistics, Healthcare Ethics, Science and Research, Regulatory Compliance
Beginner · Course · 1 - 3 Months