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.

Skills you'll gain: Billing & Invoicing, QuickBooks (Accounting Software), Billing, Invoicing, Billing Systems, Accounting Software, Payment Processing and Collection, Investigation, Claims Processing, Standard Accounting Practices, Accounting, Customer Complaint Resolution, Email Automation, Analysis, Business Process Automation, Automation, Document Management
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Hybrid Cloud Computing, Cloud-Based Integration, Cloud Management, Cloud Computing, Key Management, Cloud Services, Cloud Deployment, Session Initiation Protocols, Network Troubleshooting, Network Monitoring, System Monitoring, Cloud Security, Collaborative Software, Telecommunications, Security Management, Security Controls, Encryption, Communication Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Query Languages, Performance Tuning, Test Execution Engine, PostgreSQL, Test Data, Database Systems, Database Management, Database Architecture and Administration
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Usability Testing, Software Design Documents, Software Documentation, Usability, User Experience Design, User Centered Design, Test Tools, UI/UX Research, User Experience, User Research, Human Centered Design, Design Software
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Tableau Software, Business Intelligence, Business Intelligence Software, Interactive Data Visualization, Data Presentation, Business Analytics, Data Visualization Software, Data Storytelling, Dashboard Creation, Dashboard, Data Analysis, Forecasting, Data Preprocessing, Data Manipulation, Trend Analysis, Predictive Analytics, Data Integration
Beginner · Course · 1 - 3 Months

Skills you'll gain: Prioritization, Strategic Prioritization, Time Management, Action Oriented, Productivity, Organizational Skills, Calendar Management, Team Performance Management, Goal-Oriented, Personal Development, Planning, Stress Management, Plan Execution
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: GitHub, Test Driven Development (TDD), Continuous Integration, ASP.NET, .NET Framework, Git (Version Control System), Integration Testing, Data Access, Data Integrity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Site Reliability Engineering, Service Level, Service Level Agreement, Reliability, Key Performance Indicators (KPIs), System Monitoring, Performance Metric, Performance Measurement, Business Metrics, Continuous Monitoring, Return On Investment, DevOps, Customer experience improvement, Incident Management, Software Development, Business Workflow Analysis, Journey Mapping, Prioritization, Business Leadership
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Scalability, Node.JS, Distributed Computing, Performance Tuning, Software Architecture, Systems Architecture, OS Process Management, Event-Driven Programming
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Excel Formulas, Microsoft Excel, Spreadsheet Software, Payroll, Data Integrity, Scalability
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Application Deployment, No-Code Development, Cloud Deployment, Power Platform Architecture & Technical Design, Cryptographic Protocols, Cloud Security, Data Security, Data Integrity, Configuration Management, Risk Mitigation, Production Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Marketing Analytics, Customer Analysis, Customer Insights, Marketing Effectiveness, Data-Driven Marketing, Marketing Budgets, Spreadsheet Software, Return On Investment, Customer Relationship Management, Customer Retention, Marketing Strategies, Target Audience, Data-Driven Decision-Making, Data Transformation, Growth Strategies
Beginner · Course · 1 - 4 Weeks