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.

Arizona State University
Skills you'll gain: Manufacturing Processes, Semiconductors, Mechanical Engineering, Materials science, Thermal Management, Failure Analysis, Reliability, Engineering Calculations
Beginner · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Digital Forensics, Disaster Recovery, Risk Management Framework, Cybersecurity, NIST 800-53, Threat Management, Risk Management, Security Strategy, Network Security, Security Controls, Vulnerability Assessments, Virtualization and Virtual Machines, Cloud Computing
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React Redux, React.js, JavaScript Frameworks, Javascript, Web Development Tools, Middleware, Web Development
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Verification And Validation, Computational Logic, Theoretical Computer Science, Automation, Agentic systems, System Requirements, Robotics, Artificial Intelligence, Algorithms
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Intrusion Detection and Prevention, Continuous Monitoring, Threat Management, Firewall, Incident Response, Network Security, Threat Detection, Network Monitoring, Information Systems Security, Infrastructure Security, Cybersecurity
Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Performance Tuning, Postman API Platform, Restful API, Application Programming Interface (API), Data Validation, Authentications, Frontend Integration, React.js, API Testing, Authorization (Computing), PostgreSQL, API Design, Scalability, Application Frameworks, JSON, Full-Stack Web Development, Frontend Performance, Web Development, Python Programming
Advanced · Specialization · 3 - 6 Months

Pearson
Skills you'll gain: File Management, Firewall, Linux Administration, Ubuntu, Hardening, Linux Servers, OS Process Management, Linux, Authentications, Zero Trust Network Access, Remote Access Systems, Data Security, User Accounts, Network Security, Linux Commands, Application Security, Security Strategy, Operating System Administration, Information Systems Security, IT Security Architecture
Intermediate · Specialization · 1 - 4 Weeks

Skills you'll gain: Collaborative Software, Education Software and Technology, Digital pedagogy, digital literacy
Beginner · Guided Project · Less Than 2 Hours

Michigan State University
Skills you'll gain: Unity Engine, Game Design, Video Game Development, User Interface (UI), User Experience, Software Design, Storytelling, Application Design, C# (Programming Language), Animations
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Computer Security Incident Management, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cloud Security, Cybersecurity, Vulnerability Assessments, Cyber Attacks, Information Systems Security, Security Engineering, Metasploit, Security Strategy, Infrastructure Security, Incident Management, Vulnerability Scanning, Security Testing, Hardening, Penetration Testing, Mobile Security
Advanced · Course · 1 - 3 Months

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Collaboration, Health Technology, Vital Signs, Health Assessment, Patient Preparation, Patient Positioning, Patient Coordination, Patient Education And Counseling, Clinical Assessment, Patient Treatment, Primary Care, Health Care, Health Systems, Telecommunications, Patient Evaluation, Care Management, Communication
Beginner · Specialization · 1 - 4 Weeks

Universiteit Leiden
Skills you'll gain: Court Systems, Legal Proceedings, Adjudication, Legal Strategy, Criminal Investigation and Forensics, International Relations, Appeals, Case Law, Policty Analysis, Research, and Development, Case Studies, Child Development
Mixed · Course · 1 - 3 Months