Operating system courses can help you learn process management, memory allocation, file systems, and user interfaces. You can build skills in troubleshooting system errors, optimizing performance, and implementing security protocols. Many courses introduce tools like Linux, Windows, and virtualization software, illustrating how these skills are applied in real-world environments.

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cloud Security, Authorization (Computing), Cyber Risk, Authentications, Continuous Monitoring, Threat Management, Security Controls, Application Security, Secure Coding, System Monitoring, Cryptographic Protocols, Cryptography, Event Monitoring, Data Security, Identity and Access Management, Role-Based Access Control (RBAC), Hardening
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Script Development, Performance Testing, Performance Stress Testing, Test Tools, Verification And Validation, Software Testing, Test Data, Data Validation, Scripting, Scenario Testing, Proxy Servers, Distributed Computing, Software Installation, System Monitoring, Servers, Configuration Management
Intermediate · Course · 3 - 6 Months

Lund University
Skills you'll gain: Climate Change Programs, Climate Change Mitigation, Sustainable Development, Climate Change Adaptation, Social Justice, Drive Engagement, Community Development, Social Impact, Mitigation, Systems Thinking, Stakeholder Engagement, Research and Design, Visionary, Data-Driven Decision-Making, Finance, Innovation, Strategic Partnership, Governance, Collaboration
Beginner · Course · 1 - 3 Months

Skills you'll gain: Financial Data, Oracle Cloud Applications, Forecasting, Accounting and Finance Software, Budget Management, Financial Forecasting, Operating Budget, Fiscal Management, Budgeting, Data Management, Business Planning, Workflow Management, Strategic Planning, Month End Closing, Decision Making
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Endpoint Detection and Response, Network Administration, Cryptographic Protocols, IT Security Architecture, Cloud Security, Data Loss Prevention, Cloud Deployment, Cyber Attacks, Security Controls, Infrastructure Security, Computer Security, Encryption, Cloud Computing, Authorization (Computing), Network Planning And Design, Identity and Access Management, System Configuration, Data Security, Authentications, Malware Protection
Intermediate · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Windows PowerShell, Shell Script, Scripting Languages, Scripting, IT Automation, Command-Line Interface, System Configuration, File Management, Software Installation, Configuration Management, Integrated Development Environments, Data Management
Intermediate · Course · 1 - 4 Weeks

American Council on Exercise
Skills you'll gain: Selling Techniques, General Sales Practices, Sales Strategy, Sales, Customer Retention, Sales Prospecting, Client Services, Customer Acquisition Management, Performance Measurement, Customer Relationship Building, Drive Engagement, Key Performance Indicators (KPIs), Trustworthiness, Professional Development, Customer Engagement, Exercise Science, Rapport Building
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Store, Database Development, Systems Architecture, Apache Kafka
Intermediate · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Cooperation, Teamwork, Collaboration, Sustainable Development, Decision Making, Sustainable Systems, Business Transformation, Social Justice, Environmental Issue, Political Sciences, Social Impact, Socioeconomics, Action Oriented, Social Sciences, Systems Thinking, Visionary, Economic Development, Corporate Sustainability, Economics, Policy, and Social Studies, Empowerment
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: PostgreSQL, SQL, Query Languages, Data Transformation, Data Manipulation, Database Software, Data Management
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Banking Services, Banking, Regulatory Compliance, Commercial Banking, Compliance Management, Risk Management Framework, Governance Risk Management and Compliance, Investment Banking, Financial Services, Operational Efficiency, Operational Performance Management, Financial Systems, Risk Management, Operational Analysis, Operational Excellence, FinTech, Front Office, Business Operations, Decision Support Systems, Investments
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C++ (Programming Language), Object Oriented Design, Object Oriented Programming (OOP), Debugging, Code Reusability, Computer Programming, Memory Management, Programming Principles, Program Development
Intermediate · Course · 1 - 4 Weeks