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.

Northeastern University
Skills you'll gain: Data Warehousing, Extract, Transform, Load, Data Integration, Data Modeling, Data Architecture, Star Schema, Data Governance, Database Design, Data Management, SQL, Relational Databases, Business Intelligence, Data Mining, Data Quality, Data Analysis, Systems Design
Mixed · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Salesforce, Authentications, Salesforce Development, Data Access, Role-Based Access Control (RBAC), Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Security Strategy, Data Sharing, Responsive Web Design, Compliance Reporting, User Accounts, Application Development, Mobile Development, Customer Relationship Management (CRM) Software, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Pontificia Universidad Católica de Chile
Skills you'll gain: Health Systems, Public Health, Infectious Diseases, Nutrition and Diet, Environmental Science, Epidemiology, Food Safety and Sanitation, Environment, Sustainable Development, Biology, Research and Design, Microbiology
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Intercultural Competence, Teamwork, Personal Development, Workplace inclusivity, Adaptability, Cultural Diversity, Collaboration, Empathy, Professional Development, Cognitive flexibility, Relationship Management, Resilience, Dealing With Ambiguity, Relationship Building, Self-Awareness, Curiosity
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Pandas (Python Package), NumPy, Data Structures, Data Import/Export, Data Manipulation, Data Cleansing, Statistical Methods, Data Analysis, Exploratory Data Analysis
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Conflict Management, Intercultural Competence, Team Building, Diversity and Inclusion, Workplace inclusivity, Cultural Diversity, Team Leadership, Collaboration, Cultural Sensitivity, Verbal Communication Skills, Active Listening, Communication, Empathy, Leadership, Non-Verbal Communication, Safety Culture, Relationship Building, Adaptability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Apache Maven, Unit Testing, Spring Framework, Spring Boot, Restful API, API Testing, Software Testing, Test Case, Gradle, Software Development Tools, Integration Testing, Mockups, JSON, Authentications
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Extract, Transform, Load, Data Import/Export, Google Cloud Platform, Data Warehousing, Big Data, Database Design, Data Analysis
Beginner · Project · Less Than 2 Hours

Skills you'll gain: LangChain, LLM Application, Retrieval-Augmented Generation, OpenAI API, LangGraph, AI Workflows, Large Language Modeling, AI Orchestration, Responsible AI, Generative AI, Agentic systems, Prompt Engineering, Generative AI Agents, Natural Language Processing, Cloud Development, Application Programming Interface (API), Python Programming, Application Deployment, Data Processing, Pandas (Python Package)
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: NoSQL, Big Data, Apache Hadoop, Apache Spark, Data Infrastructure, Apache Kafka, Real Time Data, Data Management, Apache Cassandra, Apache Hive, Data Lakes, MongoDB, Databases, Data Ethics, Distributed Computing, Data Processing, Informatics, Cloud Computing, Software Design Patterns, Data Storage
Build toward a degree
Intermediate · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Construction, Construction Engineering, Construction Management, Construction Estimating, Commercial Construction, Structural Engineering, Civil and Architectural Engineering, Construction Inspection, Building Codes, Architectural Drawing, Failure Analysis, Cost Estimation, Safety Standards, Safety Training, Fall Protection, Safety Assurance, Personal protective equipment
Advanced · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Performance Management, Wireless Networks, Network Infrastructure, Virtual Networking, Wide Area Networks, Network Planning And Design, Local Area Networks, Network Protocols, Software-Defined Networking, Computer Networking, Telecommunications, Service Level Agreement, Enterprise Architecture, Prioritization
Beginner · Course · 1 - 4 Weeks