Pen testing courses can help you learn vulnerability assessment, network security, and ethical hacking techniques. You can build skills in penetration testing methodologies, risk analysis, and incident response strategies. Many courses introduce tools like Metasploit, Wireshark, and Burp Suite, that support identifying and exploiting security weaknesses in systems and applications. By engaging with these tools, you can practice practical work that enhance your ability to secure networks and protect sensitive data.

Queen Mary University of London
Skills you'll gain: Tax, Tax Laws, Law, Regulation, and Compliance, Cloud Services, Tax Compliance, Cloud Computing, Regulation and Legal Compliance, Cloud Storage, Corporate Tax, Income Tax, General Data Protection Regulation (GDPR), Data Access, Data Sharing, Digital Forensics, Interoperability, Competitive Analysis, Market Analysis, Market Dynamics
★ 4.8 (43) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, Test Case, JavaScript Frameworks, Unit Testing, Code Reusability, Test Script Development, Test Tools, UI Components, Functional Design, Software Testing, Development Testing, Event-Driven Programming, Context Management, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Web Development Tools, Development Environment, Frontend Integration, Software Development Tools, Program Development, Integrated Development Environments, Application Deployment, Transaction Processing, Application Design, Front-End Web Development, Event-Driven Programming, Development Testing, Javascript, Network Architecture
★ 5 (50) · Beginner · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Laboratory Testing, Laboratory Experience, Civil Engineering, Engineering Analysis, Experimentation, Building Codes, Research Reports, Structural Analysis, Analytical Testing, Engineering Practices, Failure Analysis, Test Equipment
★ 4.7 (9) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Ajax, Java Programming, Test Script Development, Java, Software Testing, Test Automation, Scripting, Automation, Cascading Style Sheets (CSS)
★ 4.6 (8) · Intermediate · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Quality Assurance, Software Quality Assurance, Test Tools, Test Planning, Test Case, Software Quality (SQA/SQC), Test Automation, Continuous Integration, Code Coverage, DevOps, Software Testing, Agile Methodology, Risk Management, Automation
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Node.JS, MongoDB, Secure Coding, Middleware, Event-Driven Programming, Databases
★ 4.6 (12) · Intermediate · Course · 1 - 4 Weeks

Pontificia Universidad Católica de Chile
Skills you'll gain: Structural Analysis, Civil Engineering, Engineering Analysis, Engineering, Mechanics, Hydraulics, Engineering Calculations, Materials science, Failure Analysis, Laboratory Testing, Mathematical Modeling
★ 4.8 (24) · Beginner · Course · 1 - 3 Months

Technical University of Denmark (DTU)
Skills you'll gain: Sustainable Technologies, Laboratory Research, Laboratory Testing, Laboratory Procedures, Laboratory Equipment, Sustainable Engineering, Production Process, Manufacturing and Production, Mathematical Modeling, Materials science, Process Modeling, Plant Operations and Management, Cost Estimation, Research Reports
★ 4.7 (15) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Marketing Automation, Marketing Planning, Marketing Analytics, Competitive Analysis, Prompt Engineering, Email Automation, Search Engine Optimization, Generative AI, Key Performance Indicators (KPIs), AI Personalization, Lead Generation, A/B Testing, Content Creation, Web Analytics, Performance Measurement, Data Visualization, Customer Insights, Data-Driven Decision-Making, Digital Marketing, Content Strategy
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Cascading Style Sheets (CSS), HTML and CSS, Code Reusability, Data Validation, Data Import/Export, Data Mapping, Verification And Validation, Data Sharing, Hypertext Markup Language (HTML), Interoperability, Computational Logic, Technical Documentation, Data Management, Scripting
★ 4.5 (80) · Beginner · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Histogram, Generative AI, Model Evaluation, Data Literacy, AI literacy, Data Presentation, Data Collection, Statistical Hypothesis Testing, Scientific Methods, Descriptive Statistics, Statistics, Data Analysis, Statistical Reporting, Data Ethics, Experimentation, Science and Research, Data Science, Research Design, Model Training, Artificial Intelligence
★ 4.7 (56) · Beginner · Specialization · 1 - 3 Months