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.

LearnQuest
Skills you'll gain: Oracle SQL Developer, Oracle Databases, PL/SQL, Database Design, SQL, Database Architecture and Administration, Stored Procedure, Database Management, Data Management, Network Architecture, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: JUnit, Unit Testing, Maintainability, Software Design Patterns, Software Testing, Test Automation, Integration Testing, Test Driven Development (TDD), Testability, Software Engineering, Android Development, Application Security, Test Case, Software Design, Software Architecture, Mobile Security, Application Design
Mixed · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Model Context Protocol, AI Security, Threat Modeling, AI Workflows, Secure Coding, LLM Application, Enterprise Architecture, Generative AI Agents, Security Controls, Interoperability, Agentic systems, Generative AI
Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Fire And Life Safety, Building Codes, Pump Stations, Blueprint Reading, Electrical Systems, Process Flow Diagrams, Construction, Safety Training, Hydraulics, Construction Inspection, Safety Assurance, Chemical Engineering, Building Services Engineering, Building Design, Facility Management and Maintenance, Hazard Analysis, Engineering Drawings, Safety Standards, System Requirements, Safety and Security
Intermediate · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Statistical Analysis, Program Evaluation, Policy Analysis, Data Analysis, Statistical Methods, Public Policies, Statistical Hypothesis Testing, Policy Development, Analytical Skills, Forecasting, R Programming, Data-Driven Decision-Making, Research Design, Time Series Analysis and Forecasting
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: C (Programming Language), Embedded Systems, Embedded Software, Debugging, System Programming, Hardware Architecture, Microarchitecture, Computer Architecture, Data Structures, Peripheral Devices
Beginner · Course · 1 - 4 Weeks

Pontificia Universidad Católica de Chile
Skills you'll gain: Innovation, Entrepreneurship, Marketing Strategies, Financial Management, Growth Strategies, Business Strategy, Business Development, Leadership and Management, Corporate Finance, Strategic Decision-Making, Governance, International Finance, Brand Management, Organizational Structure
Mixed · Course · 1 - 3 Months

Skills you'll gain: Figma (Design Software), Responsive Web Design, UI Components, User Interface (UI), Layout Design, User Interface (UI) Design, Design Strategies, Web Design, Scalability, Prototyping
Intermediate · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Process Mapping, Operations Management, Process Analysis, Process Improvement, Revenue Management, Business Modeling, Supply Chain, Supply Chain Management, Business Process, Organizational Structure, Supply Chain Planning, Business Operations, Project Design, Lean Six Sigma, Operational Performance Management, Strategic Thinking, Materials Management, Business Strategy, Business Strategies, Strategic Decision-Making
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Email Automation, Business Process Automation, Automation, Project Management Software, Workflow Management, Process Design, Issue Tracking, Project Management, Project Planning
Intermediate · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Computer Security, OSI Models, Systems Administration, Virtualization, Operating System Administration, Information Technology, Enterprise Security, Cybersecurity, Network Administration, Computer Networking, Virtual Machines, Enterprise Architecture, Data Integrity
Beginner · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Network Security, Intrusion Detection and Prevention, Computer Security Incident Management, Command-Line Interface, Cryptography, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cybersecurity, Encryption, Information Systems Security, Vulnerability Assessments, Cyber Attacks, Security Engineering, Risk Management Framework, Multi-Factor Authentication, Cloud Security, Penetration Testing, Risk Management
Intermediate · Specialization · 3 - 6 Months