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.

Meta
Skills you'll gain: Jest (JavaScript Testing Framework), React.js, Web Development Tools, Web Applications, Event-Driven Programming, JavaScript Frameworks, Application Programming Interface (API), Application Development, UI Components, Unit Testing, Front-End Web Development, Software Design Patterns, Context Management, Cascading Style Sheets (CSS), Javascript, Hypertext Markup Language (HTML), Data Management
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Sampling (Statistics), Logistic Regression, SAS (Software), Predictive Analytics, Automation, Data Integration, Advanced Analytics, Debugging, Statistical Programming, SQL, Statistical Methods, Report Writing, Data Manipulation, Model Evaluation, Data Analysis, Statistical Reporting, Data Access, Microsoft Excel, Analysis, Finance
Beginner · Specialization · 3 - 6 Months

L&T EduTech
Skills you'll gain: Robotics, Programmable Logic Controllers, Electrical Systems, Automation Engineering, Hydraulics, Control Systems, Automation, Simulation and Simulation Software, Internet Of Things, Manufacturing Processes, Mechanical Engineering, Real Time Data, Human Machine Interfaces, Industrial Engineering, Hardware Troubleshooting, Image Analysis, Matlab, Equipment Design, Computer Vision, Embedded Software
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: AI Orchestration, AI Workflows, LangChain, Agentic Workflows, Tool Calling, LangGraph, LLM Application, Agentic systems, Generative AI Agents, Responsible AI, Retrieval-Augmented Generation, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Application Design, Prompt Engineering, Large Language Modeling, Context Management, Software Design Patterns, Software Development, Python Programming
Intermediate · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: C# (Programming Language), Restful API, Unity Engine, Object Oriented Programming (OOP), .NET Framework, C++ (Programming Language), Video Game Development, ASP.NET, Object-Relational Mapping, Software Engineering, Web Services, Application Development, Software Design Patterns, Database Management, Programming Principles, C (Programming Language)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Data Ethics, Data Governance, Workflow Management, No-Code Development, Financial Data, Accounting and Finance Software, Artificial Intelligence, Financial Management, Generative AI, Automation, Financial Forecasting, Financial Regulation, Finance, Financial Reporting, Data Management, Financial Analysis, Accounting, Strategic Decision-Making, Securities (Finance)
Advanced · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Deductive Reasoning, Critical Thinking, Logical Reasoning, Analysis, Diagram Design, Probability, Sampling (Statistics), Persuasive Communication, Research, Sample Size Determination, Writing, Case Studies, Oral Expression, Correlation Analysis, Communication, Scientific Methods, Information Architecture, Business Communication, Interactive Learning
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Content Marketing, Digital Media Strategy, AI Personalization, Marketing Analytics, Customer Insights, Market Intelligence, Ethical Standards And Conduct
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Azure Synapse Analytics, Performance Tuning, Microsoft Azure, System Monitoring, Data Engineering, Transact-SQL, Star Schema, Power BI, PySpark, Data Cleansing, Data Analysis Expressions (DAX), Apache Spark, Data Warehousing, Analytics, Data Modeling, Data Analysis, SQL, Azure Active Directory, Advanced Analytics, Microsoft Copilot
Intermediate · Specialization · 1 - 3 Months

University of Amsterdam
Skills you'll gain: Culture, Interpersonal Communications, Media and Communications, Research, Persuasive Communication, Qualitative Research
Mixed · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Lead Generation, Search Engine Optimization, Customer Acquisition Management, Account Strategy, Keyword Research, Outbound Calls, Sales Prospecting, Upselling, Web Analytics and SEO, B2B Sales, Sales Strategy, Marketing, Marketing Strategies, Content Marketing, Target Market, Content Creation
Mixed · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Agentic systems, Responsible AI, Data Pipelines, Law, Regulation, and Compliance, Data Ethics, Model Evaluation, Information Privacy, Data Processing, AI Workflows, Data Analysis, No-Code Development, Analytical Skills, Machine Learning, Artificial Intelligence, Real Time Data, Ethical Standards And Conduct, Machine Learning Algorithms, Data Collection
Intermediate · Course · 1 - 3 Months