Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Skills you'll gain: JUnit, Test Automation, Test Tools, Test Script Development, Unit Testing, Software Testing, Performance Testing, Quality Assurance, Performance Stress Testing, IT Automation, Performance Tuning, Scripting, Debugging, Network Performance Management, Simulations
★ 4.9 (13) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Pipelines, Apache Airflow, Data Integration, Cloud Deployment, Extract, Transform, Load, Cloud Computing, Data Infrastructure, Data Processing, Data Warehousing, Data Architecture
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sales Pipelines, Sales Process, Sales Management, Sales Enablement, Lifelong Learning, Sales, Sales Training, Sales Strategy, Professional Development, Sales Operations, Process Optimization, Sales Development, Personal Development, People Development, Stress Management, Mentorship, Growth Mindedness, Self-Motivation, Relationship Building, Customer Relationship Building
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Power BI, Data Analysis Expressions (DAX), Pivot Tables And Charts, Data Manipulation, Interactive Data Visualization, Data Visualization Software, Data Visualization, Data Integration, Dashboard, Role-Based Access Control (RBAC), Data Import/Export, Relational Databases, Security Controls
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Risk Analysis, Trend Analysis, Analysis, Project Risk Management, Project Management Software, Project Controls, Project Performance, Risk Management, Dashboard, Key Performance Indicators (KPIs), Project Scoping, Performance Metric, Issue Tracking, Project Management, Continuous Monitoring, Scope Management, Performance Measurement, Real Time Data, Budget Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Agentic Workflows, AI Personalization, Agentic systems, Sales Training, Competitive Intelligence, Sales Management, Generative AI Agents, Sales Strategy, Sales, Personalized Campaigns, Customer Analysis, Customer Relationship Management (CRM) Software, Sales Process, Customer Relationship Management, Real Time Data, Proposal Writing, Automation, Customer Insights, Proposal Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Scenario Testing, Test Planning, Unit Testing, Functional Testing, Debugging, Hardware Troubleshooting
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Social Media Analytics, Content Creation, Social Media Marketing, Hospitality Management, Social Media, Hospitality, Social Media Management, Social Media Content, Digital Marketing Campaigns, Guest Relations, Digital Marketing Tools, Hotels and Accommodations, Marketing, Social Media Strategy, Digital Marketing, Storytelling, Instagram, Web Analytics and SEO, Search Engine Optimization, User Feedback
★ 3.8 (25) · Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Public Administration, Automation, Law, Regulation, and Compliance, Digital Transformation, Fraud detection
★ 4.7 (46) · Beginner · Course · 1 - 3 Months
Northeastern University
Skills you'll gain: Value-Based Care, Managed Care, Quality Assurance, Health Systems, Data Quality, Health Care, Health Policy, Scientific Methods, Health Equity, Health Disparities, Risk Analysis, Data Integrity
★ 4.7 (38) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), Software Architecture, .NET Framework, Object Oriented Design, Distributed Computing, Scalability, Object Oriented Programming (OOP), Software Design, Object-Relational Mapping, Microservices, MongoDB, Data Access, Model View Controller, Performance Tuning, Computer Programming, Maintainability, NoSQL, Event-Driven Programming
★ 4.5 (103) · Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Electrical Systems, Network Architecture, Electrical Power, HVAC, Control Systems, Electric Power Systems, Electrical Wiring, Low Voltage, High Voltage, Building Design, Electrical Engineering, Hazard Analysis, Schematic Diagrams, Electrical Safety, Electrical Equipment, Drafting and Engineering Design, Energy and Utilities, Networking Hardware, Site Reliability Engineering, Building Codes
★ 3.7 (6) · Intermediate · Specialization · 3 - 6 Months