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.

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Test Script Development, Test Automation, Browser Compatibility, System Testing, Test Tools, Object Oriented Programming (OOP), Continuous Delivery, Test Data, Java Programming, Java, Test Case
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: JUnit, Spring Framework, Spring Boot, Java Programming, Java, Apache Maven, Unit Testing, Gradle, Application Programming Interface (API), Google Cloud Platform, Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), Cloud Deployment, Back-End Web Development, YAML, Restful API, Software Configuration Management, Load Balancing
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Embedded Software, Real-Time Operating Systems, Embedded Systems, Software Systems, Internet Of Things, Real Time Data, System Requirements, Software Development, Secure Coding, Cloud Computing Architecture, Systems Engineering, Cloud-Based Integration, System Design and Implementation, Back-End Web Development, System Implementation, Communication Systems, System Testing, Algorithms, Performance Testing, Systems Analysis
Advanced · Course · 1 - 4 Weeks

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

University of Colorado Boulder
Skills you'll gain: Descriptive Statistics, Statistical Hypothesis Testing, Regression Analysis, Statistical Programming, R (Software), Probability Distribution, Statistical Analysis, R Programming, Data Import/Export, Probability & Statistics, Statistical Modeling, Statistical Methods, Descriptive Analytics, Tidyverse (R Package), Plot (Graphics), Statistics, Data Manipulation, Data Analysis, Statistical Inference, Data Wrangling
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Containerization, CI/CD, Docker (Software), DevOps, Jenkins, Application Deployment, Continuous Integration, Rust (Programming Language), Prometheus (Software), Continuous Delivery, System Monitoring, JSON, Scripting, Command-Line Interface, Continuous Monitoring, Automation, System Programming, Software Testing, GitHub
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Frontend Integration, API Testing, React.js, Authentications, Containerization, OAuth, Cloud Deployment, Back-End Web Development, PostgreSQL, API Gateway, Software Documentation, Amazon Web Services, Event-Driven Programming, Front-End Web Development, Python Programming, Database Management, Restful API, Object-Relational Mapping, SQL, API Design
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, Metasploit, Open Web Application Security Project (OWASP), Security Testing, Vulnerability Scanning, TCP/IP, Network Protocols, Vulnerability Assessments, Cyber Security Assessment, Exploitation techniques, Brute-force attacks, Windows PowerShell, Active Directory, Network Analysis, Microsoft Windows, Wireless Networks, Scripting, Virtual Environment
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Semiconductors, Electronic Components, Electronics, Production Process, Engineering, Scientific, and Technical Instruments, Test Equipment, Electrical Engineering, Manufacturing Processes, Process Control, Analytical Testing, Laboratory Testing, Laboratory Equipment, Materials science, Systems Of Measurement, Engineering Calculations, Mathematical Modeling, Applied Mathematics
Intermediate · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: AI Security, Vector Databases, Responsible AI, Data Strategy, Data Ethics, Data Management, Data Security, Generative AI, Generative AI Agents, Data Mapping, AI Integrations, Data Governance, Containerization, Data Architecture, Retrieval-Augmented Generation, Interoperability, Enterprise Architecture, Metadata Management, Data Pipelines, Artificial Intelligence and Machine Learning (AI/ML)
Intermediate · Specialization · 1 - 3 Months

Scrimba
Skills you'll gain: OpenAI API, OpenAI, AI Workflows, LLM Application, AI Integrations, Generative AI Agents, AI Personalization, Agentic Workflows, Application Programming Interface (API), Performance Testing, Artificial Intelligence, Context Management, Application Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Journals, Color Theory, Storytelling, Creativity, Layout Design, Visual Storytelling, Creative Thinking, Creative Problem-Solving, Overcoming Obstacles, Resourcefulness, Time Management, Curiosity, Growth Mindedness, Cognitive flexibility, Design Elements And Principles, Resilience, Decisiveness, Open Mindset, Personal Development, Decision Making
Beginner · Specialization · 1 - 3 Months