Data Structures and Algorithms courses can help you learn about arrays, linked lists, trees, and graph structures, along with sorting and searching algorithms. You can build skills in problem-solving, optimizing code efficiency, and analyzing algorithm complexity. Many courses introduce tools like Python, Java, or C++ for implementing these concepts, as well as platforms for coding challenges that reinforce your understanding through practical application.

Skills you'll gain: Web Content Accessibility Guidelines, Video Production, Instructional Design, Disabilities, Web Content, Learning Strategies, User Centered Design, Technical Documentation, Microsoft Office, Law, Regulation, and Compliance
Beginner · Course · 1 - 3 Months

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Java Programming, Test Automation, JUnit, Object Oriented Programming (OOP), Integration Testing, Browser Compatibility
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Cloud-Native Computing, Docker (Software), Containerization, Microservices, Agile Methodology, DevOps, Kubernetes, CI/CD, Agile Project Management, Hybrid Cloud Computing, Scrum (Software Development), Restful API, Continuous Delivery, Cloud Applications, Continuous Integration, Postman API Platform, Test Driven Development (TDD), Cloud Computing Architecture, Software Development, Behavior-Driven Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Test Automation, Test Case, Selenium (Software), Software Testing, Test Tools, Maintainability, Test Data, Debugging, Configuration Management
Advanced · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: International Relations, Environmental Policy, Financial Systems, Labor Relations, Economic Development, Economics, Policy, and Social Studies, Sustainable Development, Diplomacy, World History, Governance, Social Justice, Policy Analysis
Build toward a degree
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Telehealth, Patient Safety, Health Technology, Help Desk Support, Medical Equipment, System Support, Technical Support, Desktop Support, Practice Management Software, Health Care, Issue Tracking, Network Support, Change Control, Medical Devices, Change Requests, Disaster Recovery, Technical Documentation, Software Installation, Technical Communication, General Networking
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Looker (Software), Pivot Tables And Charts, Dashboard, Data Modeling, Exploratory Data Analysis, Data Analysis, Query Languages
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Infrastructure as Code (IaC), Jenkins, Ansible, SonarQube, Continuous Deployment, Configuration Management, Software Configuration Management, Code Coverage, DevOps, Devops Tools, Application Deployment, Quality Control
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ASP.NET, Object Oriented Programming (OOP), Object Oriented Design, Frontend Integration, Middleware, Programming Principles, Application Frameworks, Object-Relational Mapping, Model View Controller, Event-Driven Programming, User Interface (UI), Cascading Style Sheets (CSS), Authentications, Development Environment, Debugging
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Cyber Security Assessment, Public Key Infrastructure, Cybersecurity, Threat Modeling, Cryptography, Exploitation techniques, Security Testing, Vulnerability Scanning, Encryption, Technical Writing, Human Factors (Security)
Intermediate · Course · 1 - 3 Months

American Council on Exercise
Skills you'll gain: Chronic Diseases, Health And Wellness Coaching, Blood Pressure, Cardiology, Preventative Care, Mental Health, Diagnostic Tests, Public Health and Disease Prevention, Stress Management, Nutrition and Diet, Exercise Science, Behavioral Management, Care Management
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Javascript, Ajax, JSON, Web Applications, Web Development, Scripting, Hypertext Markup Language (HTML), Object Oriented Programming (OOP), Event-Driven Programming, Web Services, Programming Principles, Prototyping, Network Protocols
Mixed · Course · 1 - 4 Weeks