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.

Meta
Skills you'll gain: Restful API, API Testing, Django (Web Framework), API Design, Software Documentation, Application Programming Interface (API), Authentications, Authorization (Computing), Debugging, JSON, Performance Tuning, Data Validation, Extensible Markup Language (XML)
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Distributed Computing, Dataflow, Java Programming, Java, Software Architecture, Systems Architecture, Scala Programming, Data Structures, System Programming, Programming Principles, Servers, Application Frameworks, Debugging, Algorithms, Performance Tuning, Functional Design, Performance Testing
Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Software Documentation, LLM Application, Collaborative Software, Software Testing, Large Language Modeling, Dependency Analysis, Security Testing, Debugging, Software Engineering, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Risk Management, Mathematical Modeling, Predictive Modeling, Financial Modeling, Simulation and Simulation Software, Operations Research, Probability Distribution, Data-Driven Decision-Making, Statistical Hypothesis Testing, Statistical Analysis, Microsoft Excel, Excel Formulas
Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Sampling (Statistics), Bayesian Statistics, Probability & Statistics, Statistical Inference, Statistical Methods, Statistics, Probability, Probability Distribution, Statistical Analysis, Biostatistics, Statistical Hypothesis Testing
Mixed · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Analytical Skills, Sampling (Statistics), Statistical Hypothesis Testing, Data Literacy, R (Software), Data Analysis, R Programming, Statistics, Public Health, Statistical Inference, Descriptive Statistics, Probability Distribution, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Pandas (Python Package), MLOps (Machine Learning Operations), NumPy, Model Deployment, Data Manipulation, Software Testing, Data Import/Export, Test Automation, Python Programming, Debugging, Data Structures, Machine Learning, Object Oriented Programming (OOP), Scripting, Numerical Analysis, Application Programming Interface (API), Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Large Language Modeling, Responsible AI, Generative AI, Retrieval-Augmented Generation, Vibe coding, Natural Language Processing, Data Ethics, AI Workflows, Agentic systems, CI/CD, Software Development, Software Engineering Tools, DevOps, AI Security, Software Documentation, Test Automation, Application Security, DevSecOps, Software Engineering
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Augmented and Virtual Reality (AR/VR), Augmented Reality, Storyboarding, Virtual Reality, Unreal Engine, Usability Testing, Design Thinking, 3D Assets, Prototyping, Unity Engine, User Experience Design, Interaction Design, Conceptual Design, Human Centered Design, Design, User Research, Application Development, Web Content Accessibility Guidelines, Emerging Technologies, Virtual Environment
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Health Informatics, Health Technology, Health Systems, Health Policy, Health Care, Informatics, Healthcare Industry Knowledge, Health Information Management and Medical Records, Health Information Management, Health Care Procedure and Regulation, System Requirements, Interoperability, Electronic Medical Record, Data Literacy, Technology Strategies, Medical Imaging, Emerging Technologies
Beginner · Course · 1 - 4 Weeks
University of London
Skills you'll gain: Descriptive Statistics, Statistics, Probability & Statistics, Statistical Hypothesis Testing, Data Visualization, Data-Driven Decision-Making, Statistical Modeling, Data Analysis, Probability, Probability Distribution, Sampling (Statistics), Risk Modeling, Statistical Inference, Mathematical Modeling
Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: AI Personalization, Model Evaluation, Machine Learning Algorithms, Taxonomy, Decision Support Systems, Business Metrics, Applied Machine Learning, Machine Learning, Dimensionality Reduction, Performance Metric, Spreadsheet Software, Data Collection, Performance Measurement, Benchmarking, Data Validation, Exploratory Data Analysis, A/B Testing, Analysis, Predictive Analytics, Predictive Modeling
Intermediate · Specialization · 3 - 6 Months