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: Unity Engine, Debugging, User Interface (UI) Design, Game Design, Video Game Development, User Interface and User Experience (UI/UX) Design, 3D Assets, Program Development, Interaction Design, Scripting, C# (Programming Language)
Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Kanban Principles, Lean Six Sigma, Project Closure, Six Sigma Methodology, Return On Investment, Process Improvement, Lean Methodologies, Quality Improvement, Business Metrics, Continuous Improvement Process, Operational Excellence, Statistical Process Controls, Workflow Management, Financial Analysis, Project Controls, Cost Benefit Analysis, Continuous Monitoring, Operational Analysis, Cleanliness, Visual Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Supplier Performance Management, Vendor Contracts, Supplier Relationship Management, Risk Analysis, Root Cause Analysis, Contract Management, Contract Compliance, Corrective and Preventive Action (CAPA), Strategic Sourcing, Continuous Improvement Process, Risk Management, Procurement, Service Level Agreement, Performance Analysis, Generative AI Agents, Key Performance Indicators (KPIs), Prompt Engineering
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: C# (Programming Language), Restful API, ASP.NET, Model View Controller, .NET Framework, Docker (Software), Azure DevOps, Object Oriented Programming (OOP), Microservices, Containerization, JSON, API Design, DevOps, Web Services, Middleware, CI/CD, Back-End Web Development, Web Applications, Programming Principles, Server Side
Intermediate · Specialization · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: People Analytics, Human Capital, Human Resource Strategy, Human Resources, Talent Management, Organizational Effectiveness, Workforce Management, Analytics, Performance Measurement, Employee Performance Management, Data-Driven Decision-Making, Performance Analysis, Network Analysis, Employee Retention, Performance Management, Collaboration, Data Analysis, Predictive Analytics
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Healthcare Project Management, Data Visualization, Concision, Analytical Skills
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Event-Driven Programming, Web Applications, Javascript, Hypertext Markup Language (HTML), Front-End Web Development, Scripting, Transaction Processing, Programming Principles, Data Validation
Beginner · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Intellectual Property, Entrepreneurship, Music History, Contract Negotiation, Fundraising and Crowdsourcing, Creativity, Team Building, Creative Thinking, Presentations, Innovation, Lawsuits, Self-Starter, Music, Brand Strategy, Open Mindset, Collaboration, Project Planning, Digital Assets, Business, Social Media
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: IBM Cloud, Development Testing, Natural Language Processing, Software Testing, User Flows, Customer experience improvement, User Accounts, Content Management
Beginner · Course · 1 - 4 Weeks

PracticalGrowth
Skills you'll gain: Constructive Feedback, Delegation Skills, Performance Management, Performance Review, Coaching, Employee Coaching, Employee Performance Management, People Development, Training and Development, Performance Measurement, Mentorship, Key Performance Indicators (KPIs), Leadership and Management, Goal Setting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Stored Procedure, Microsoft SQL Servers, Database Design, Transaction Processing, SQL, Databases, Relational Databases, Database Development, Database Application, User Interface (UI), System Configuration, UI Components, System Implementation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, Agentic systems, AI Workflows, Hugging Face, CrewAI, Embeddings, Transfer Learning
Intermediate · Course · 3 - 6 Months