École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Software Design, Software Design Patterns, Functional Design, Java, Programming Principles, Performance Tuning, Data Structures, Algorithms
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Command-Line Interface, Linux Commands, Linux, Unix Commands, File Management, Linux Administration, File Systems
Intermediate · Guided Project · Less Than 2 Hours

Atlassian
Skills you'll gain: Git (Version Control System), Version Control, GitHub, Bitbucket, Software Configuration Management, Command-Line Interface, Code Review, Collaborative Software
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: React.js, Performance Tuning, Frontend Performance, Front-End Web Development, Application Performance Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Network Security, Intrusion Detection and Prevention, Computer Security Incident Management, Command-Line Interface, Cryptography, Open Web Application Security Project (OWASP), Application Security, Secure Coding, Cybersecurity, Encryption, Information Systems Security, Vulnerability Assessments, Cyber Attacks, Security Engineering, Risk Management Framework, Multi-Factor Authentication, Cloud Security, Penetration Testing, Risk Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Terraform, Infrastructure as Code (IaC), Cloud Infrastructure, IT Automation, DevOps, Cloud API, Configuration Management, Command-Line Interface, Version Control
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java, Application Servers, Web Applications, Development Environment, Java Programming, Application Development, Program Development, Object Oriented Programming (OOP), Mobile Development, Computer Programming, UI Components, Event-Driven Programming, User Interface (UI), Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operating Systems, Network Security, Microsoft Windows, Command-Line Interface, Systems Administration, System Support, Unix, Mac OS, System Configuration, Unix Commands, Network Troubleshooting, Linux, Firewall, Information Technology, Software Installation, Technical Support, Help Desk Support, Malware Protection, Mobile Security, Encryption
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Web Applications, Web Design and Development, API Design, User Interface (UI), Databases, Scalability, GitHub, Command-Line Interface, Data Validation
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Identity and Access Management, Cloud Infrastructure, Cloud Computing, Cloud Computing Architecture, Cloud Deployment, Virtual Machines, Kubernetes, Role-Based Access Control (RBAC), Virtual Networking, Cloud Management, Windows PowerShell, Load Balancing, Security Information and Event Management (SIEM), Command-Line Interface, Network Security, Scalability
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Vulnerability Assessments, Cyber Security Assessment, Network Monitoring, Penetration Testing, Virtual Private Networks (VPN), Command-Line Interface, Linux Commands, Cybersecurity, Linux, Software Installation, Intrusion Detection and Prevention, Network Security, Network Analysis
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Command-Line Interface, Linux Commands, Linux, Embedded Systems, Linux Servers, Computer Engineering, File Systems, Unix, Operating Systems, C (Programming Language), Computer Programming, Open Source Technology
Beginner · Course · 1 - 3 Months