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), Test Automation, Software Testing, Test Script Development, Test Data, Test Tools, Browser Compatibility, Test Case, Java, Automation, Cascading Style Sheets (CSS), Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Application Programming Interface (API), Node.JS, Software Documentation, Web Services, Middleware, Authentications, JSON, Web Frameworks, Server Side, Web Applications, Back-End Web Development, Authorization (Computing)
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Stakeholder Management, Technical Management, Engineering Management, Negotiation, Mentorship, Leadership, Courage, Growth Mindedness, Business Leadership, Team Leadership, Office Management, Collaboration, Professional Development, Visionary, Personal Development, Accountability, Positivity, Resilience
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: User Story, Prompt Engineering, No-Code Development, User Feedback, Technical Communication, Application Deployment, AI Security, Performance Tuning, Data Wrangling, Version Control, Business Process Automation, API Testing, DevSecOps, Site Reliability Engineering, Integration Testing, Application Security, Application Programming Interface (API), Agile Methodology, LLM Application, Data Integration
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Cloud Management, Virtual Machines, Kubernetes, Containerization, Cloud Storage, Cloud Computing, Data Storage, Application Deployment, IT Automation, Infrastructure as Code (IaC), Application Security, Data Import/Export, Scalability, Encryption
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Dashboard, Business Intelligence, Data Modeling, Data Storytelling, Extract, Transform, Load, Data Transformation, Data Visualization, Snowflake Schema, Business Analytics, Data Lakes, Data-Driven Decision-Making, Key Performance Indicators (KPIs), Data Analysis, Data Governance, Python Programming, Generative AI, Artificial Intelligence, Data Security
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Canva (Software), Graphic and Visual Design Software, Graphic Design, Design, Collaborative Software, Design Software, Content Creation, User Accounts, Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Cloud Applications, Cloud Development, Cloud API, Security Assertion Markup Language (SAML), Google Cloud Platform, Application Programming Interface (API), Cloud-Based Integration, Authentications, Serverless Computing, Identity and Access Management, API Design, Event-Driven Programming, OAuth, Microservices, Node.JS, Authorization (Computing), Scalability
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Canva (Software), Photo Editing, Content Creation, Image Quality, Graphic Design, Data Sharing, Design, Graphic and Visual Design Software, Editing, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Kotlin, IntelliJ IDEA
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Adobe Photoshop, Adobe Firefly, Photo Editing, Adobe Creative Cloud, Generative AI, AI Workflows, Creative Design
Intermediate · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Color Theory, Typography, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Web Design, HTML and CSS, Animations, User Interface (UI) Design, Web Design and Development, Usability, Visualization (Computer Graphics)
Intermediate · Course · 1 - 4 Weeks