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: Selenium (Software), Postman API Platform, JUnit, Test Automation, API Testing, Software Quality Assurance, Test Tools, Test Script Development, Quality Assurance, Unit Testing, Software Testing, Continuous Integration, Automation, Data Validation, Performance Testing, Test Case, Agile Methodology, Integration Testing, Debugging, Javascript
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Star Schema, Role-Based Access Control (RBAC), Power BI, Database Design, Data Modeling, Financial Modeling, Data Analysis Expressions (DAX), Authorization (Computing), Relational Databases, Financial Data, Data Security, Security Controls, Dashboard, Data Access, Model Deployment, Gross Profit
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Design, User Interface and User Experience (UI/UX) Design, Software Design, Application Development, Front-End Web Development, Performance Tuning, Software Design Patterns, Real Time Data, API Design, Application Performance Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud-Native Computing, Business Intelligence Software, Amazon Web Services, Data Manipulation, Data Import/Export
Beginner · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: AI Personalization, Generative AI, Responsible AI, Email Marketing, Google Gemini, Digital Marketing, Marketing Automation, Content Strategy, Content Creation, Search Engine Optimization, Advertising Mail, Content Development and Management, Web Analytics and SEO, Personalized Service, ChatGPT, Artificial Intelligence, Prompt Engineering, Social Media Content, Artificial Intelligence and Machine Learning (AI/ML), Microsoft Copilot
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: MLOps (Machine Learning Operations), Computational Thinking, Data Processing, Solution Design, Process Mapping, Data Pipelines
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, CI/CD, Continuous Integration, Application Deployment, Continuous Delivery, Build Tools, Application Servers, DevOps, User Accounts, Software Configuration Management, System Configuration, Git (Version Control System)
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Metadata Management, Document Management, Vector Databases, Query Languages, Data Management, Extract, Transform, Load, Data Maintenance, Data Architecture, Data Pipelines, Scripting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: jQuery, Front-End Web Development, User Interface (UI) Design, Event-Driven Programming, Hypertext Markup Language (HTML)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, .NET Framework, C# (Programming Language), Debugging
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Simulations, Data-oriented programming, Plot (Graphics)
Intermediate · Course · 1 - 4 Weeks
Starweaver
Skills you'll gain: Financial Modeling, Microsoft Excel, Financial Statement Analysis, Financial Forecasting, Excel Formulas, Revenue Forecasting, Financial Analysis, Business Modeling, Financial Statements, Risk Analysis, Cash Flow Forecasting, Balance Sheet, Forecasting, Accounting, Working Capital, Operational Excellence
Beginner · Course · 1 - 4 Weeks