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: Database Design, Performance Tuning, Data Warehousing, Apache Spark, Data Architecture, SQL, Query Languages, Data Transformation, Disaster Recovery, Database Management, PySpark, Infrastructure as Code (IaC), Cloud Computing Architecture, Distributed Computing, Scalability, Data Pipelines, Performance Analysis, Root Cause Analysis, Cost Management, Resource Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Image Quality, Generative AI, Adobe Photoshop, Content Creation, User Accounts, Multimedia
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Development Environment, Web Analytics and SEO
Beginner · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Metasploit, Penetration Testing, Exploitation techniques, Brute-force attacks, Cyber Security Assessment, Intrusion Detection and Prevention, Network Security, Remote Access Systems, Network Protocols, Command-Line Interface, Network Analysis
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Presentation, Verbal Communication Skills, Presentations, Dashboard, Infographics, Storytelling, Data Visualization Software, Persuasive Communication, Communication, Non-Verbal Communication, Target Audience, Decision Making
Intermediate · Course · 3 - 6 Months

Scrimba
Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design, Interactive Design, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Usability, User Interface (UI) Design, UI Components, Browser Compatibility, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Management, User Feedback
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Presentations, Marketing Design, Marketing Materials, Social Media Content, Promotional Materials, Social Media, Content Creation, Content Marketing, Marketing, Graphic Design, Business Communication, User Accounts
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Canva (Software), Style Guides, Data Import/Export, Video Editing, Content Creation, Photo Editing, Branding, Animations, Graphic and Visual Design, Design Elements And Principles, Typography, Marketing
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Software-Defined Networking, Network Architecture, Network Planning And Design, Wide Area Networks, Virtual Private Networks (VPN), Network Administration, Network Security, Network Performance Management, Firewall, Cloud Deployment, Network Routing, Encryption
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Applied Machine Learning, Machine Learning, AI Enablement, MLOps (Machine Learning Operations), Technology Roadmaps, Data-Driven Decision-Making, Artificial Intelligence and Machine Learning (AI/ML), Business Analytics, Business Solutions, Organizational Strategy, AI Product Strategy, Organizational Change, Product Roadmaps, Feasibility Studies, System Requirements, Solution Design, Training Programs
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, LLM Application, AI Workflows, AI Orchestration, No-Code Development, OpenAI API, Tool Calling, Generative AI Agents, Vector Databases, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months