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.

University of Colorado Boulder
Skills you'll gain: Control Systems, Process Control, Machine Controls, Engineering, Scientific, and Technical Instruments, Automation Engineering, Manufacturing Processes, Embedded Software, Electrical and Computer Engineering, Embedded Systems, Electronics, Laboratory Equipment, Electronics Engineering, Test Equipment, Medical Imaging, Medical Devices, Performance Tuning, Electronic Components, Mechanical Design, Reliability, Product Testing
Build toward a degree
Intermediate Ā· Course Ā· 1 - 3 Months

Skills you'll gain: Cryptography, Network Security, Software-Defined Networking, Computer Networking, Network Architecture, Network Performance Management, Virtualization, Program Development, Cloud Computing, Open Source Technology, Virtual Machines, Hardware Architecture, Unit Testing
Beginner Ā· Course Ā· 1 - 4 Weeks

LearnKartS
Skills you'll gain: JUnit, Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Java, Unit Testing, Debugging, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Test Case, Application Development, Authentications, Application Security, Android Development, Cryptography, Software Design Patterns
Beginner Ā· Specialization Ā· 1 - 3 Months

LearnQuest
Skills you'll gain: Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, iOS Development, Responsive Web Design, Data Structures, Object Oriented Programming (OOP), Unit Testing, Programming Principles, Transaction Processing, Database Application, Mobile Development, User Interface (UI), Application Development, UI Components, Application Programming Interface (API), Data Storage, Data Modeling
Beginner Ā· Specialization Ā· 3 - 6 Months
University of Manchester
Skills you'll gain: Chemical Engineering, Oil and Gas, Environmental Engineering, Process Engineering, Materials science, Engineering, Engineering Design Process, Failure Analysis, Industrial Design, Engineering Calculations, Chemistry, Environmental Issue, Laboratory Testing
Intermediate Ā· Course Ā· 1 - 4 Weeks
LearnQuest
Skills you'll gain: Containerization, Package and Software Management, Unified Modeling Language, Matplotlib, Software Testing, Docker (Software), Unit Testing, Development Testing, CI/CD, Test Automation, Data Manipulation, Pandas (Python Package), Data Visualization, Scripting, Data Modeling, DevOps, Programming Principles, Python Programming, Data Structures, Computer Programming
Beginner Ā· Specialization Ā· 3 - 6 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Statistical Hypothesis Testing, Statistical Inference, Business Analytics, Statistical Analysis, Analytics, Microsoft Excel, Probability & Statistics, Statistical Methods, Predictive Analytics, Data-Driven Decision-Making, Regression Analysis
Intermediate Ā· Course Ā· 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Differentiated Instruction, Collaborative Software, Education Software and Technology, Learning Management Systems, Digital Transformation, Emerging Technologies, Innovation, Multimedia, Digital Communications
Mixed Ā· Course Ā· 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Infrastructure as Code (IaC), AWS CloudFormation, IT Automation, Scripting, Bash (Scripting Language), Amazon Web Services, Command-Line Interface, Configuration Management, Amazon Elastic Compute Cloud, Automation, Continuous Monitoring, Infrastructure As A Service (IaaS), Cloud Management, Continuous Integration, Patch Management, Software Testing
Beginner Ā· Course Ā· 1 - 4 Weeks

Rice University
Skills you'll gain: Immunology, Public Health, Anatomy, Molecular Biology, Infectious Diseases, Medical Terminology, Cell Biology, Biochemistry, Microbiology, Biology
Intermediate Ā· Course Ā· 1 - 3 Months
University of California San Diego
Skills you'll gain: Biotechnology, Biochemistry, Manufacturing and Production, Food and Beverage, Sustainable Design, Chemical Engineering, Pharmaceuticals, Environment and Resource Management, Biology, Taxonomy, Environmental Science, Microbiology, Process Engineering, Laboratory Testing
Intermediate Ā· Course Ā· 1 - 3 Months

Scrimba
Skills you'll gain: Prompt Engineering, Responsible AI, Multimodal Prompts, OpenAI, Generative AI, Data Ethics, ChatGPT, Artificial Intelligence, LLM Application, Application Programming Interface (API), Integration Testing, Computer Programming, Key Management
Intermediate Ā· Course Ā· 1 - 3 Months