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: Cyber Security Strategy, Endpoint Security, Zero Trust Network Access, Cybersecurity, Cyber Attacks, Incident Response, Endpoint Detection and Response, Cyber Security Policies, Security Management, Security Strategy, Identity and Access Management, Disaster Recovery, Cyber Risk, AI Security, Data Security, Cyber Threat Hunting, Malware Protection, Network Security, Security Controls, Security Awareness
Intermediate · Course · 3 - 6 Months

Skills you'll gain: AutoCAD, Performance Tuning, File Management, Computer-Aided Design, Command-Line Interface, Document Management, Automation, Engineering Drawings, Drafting and Engineering Design, Design Software, Data Sharing, Style Guides, System Configuration, Graphical Tools, User Interface (UI)
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Restful API, API Design, GitHub, Git (Version Control System), Postman API Platform, Application Programming Interface (API), Version Control, Application Deployment, API Testing, Web Development, Full-Stack Web Development, Back-End Web Development, Web Applications, Front-End Web Development
Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: API Gateway, Amazon Elastic Compute Cloud, Amazon Web Services, Virtual Networking, Application Programming Interface (API), Load Balancing, Cloud Infrastructure, Network Architecture, Network Infrastructure, Network Routing, Cloud Deployment, Scalability, Frontend Performance, Capacity Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Design, Application Programming Interface (API), Restful API, Postman API Platform, Flask (Web Framework), MySQL, API Testing, Database Development, Databases, Back-End Web Development, Software Versioning, Software Development, Design
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Agentic systems, Tool Calling, Agentic Workflows, Generative AI Agents, Gemini, Google Gemini, LLM Application, AI Integrations, OpenAI, Middleware, Angular, Development Environment, Server Side, Systems Architecture, Node.JS, Frontend Integration, Debugging, Data Validation
Advanced · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Monitoring, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Wide Area Networks, Network Performance Management, Network Administration, System Configuration, System Monitoring, Network Protocols, Network Planning And Design, Telecommunications, Application Deployment, Network Routing, Communication Systems, Scalability
Beginner · Course · 1 - 3 Months

Skills you'll gain: Apache Airflow, Data Governance, Data Management, Apache Spark, PySpark, Databricks, Record Keeping
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Engineering, Generative AI Agents, Google Gemini, Responsible AI, AI Security, Generative AI, Google Workspace, Generative Model Architectures, Prompt Patterns, Retrieval-Augmented Generation, Google Cloud Platform, Large Language Modeling, AI Product Strategy, Agentic Workflows, Gemini, AI Enablement, Agentic systems, Cloud Computing, Artificial Intelligence, Collaboration
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: GitHub Copilot, ChatGPT, Computer Programming Tools, Software Development Tools, AI Integrations, AI Workflows, Test Script Development, Web Development Tools, Application Programming Interface (API), React.js, Unit Testing, Jest (JavaScript Testing Framework), Debugging, Software Installation, Middleware
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Feature Engineering, Responsible AI, Model Evaluation, Model Deployment, Technical Communication, Data Preprocessing, Data Transformation, Stakeholder Communications, Performance Analysis, Data Wrangling, Data Cleansing, Predictive Modeling, Machine Learning, Embeddings, Artificial Intelligence, Report Writing, Decision Support Systems, Scikit Learn (Machine Learning Library), Pandas (Python Package)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data-Driven Marketing, Dashboard Creation, A/B Testing, Predictive Modeling, Data Validation, Predictive Analytics, Analytics, Campaign Management, Web Analytics, Verification And Validation, Real Time Data, Management Reporting, Model Evaluation, Scheduling
Beginner · Course · 3 - 6 Months