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: Digital Forensics, Infrastructure as Code (IaC), Endpoint Security, Vulnerability Management, Risk Management, Cryptography, Cybersecurity, Risk Management Framework, Network Security, Incident Response, Threat Management, Cloud Security, Risk Analysis, Cryptographic Protocols, Cyber Attacks, Business Risk Management, Encryption, Cyber Security Policies, Cyber Threat Intelligence, Vulnerability Assessments
★ 4.4 (18) · Intermediate · Specialization · 3 - 6 Months

Technical University of Denmark (DTU)
Skills you'll gain: Energy and Utilities, Chemistry, Sustainable Engineering, Sustainable Development, Plant Operations and Management, Chemical Engineering, Process Engineering, Thermal Management, Environmental Engineering, Analytical Chemistry, Materials science, Analytical Testing, Laboratory Research, Engineering Calculations, Mathematical Modeling, Experimentation
★ 4.8 (27) · Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Usability, Usability Testing, Human Computer Interaction, Human Centered Design, Human Factors, User Centered Design, UI/UX Research, User Research, Data Collection, Research Methodologies, Research, Experimentation, Case Studies
★ 4.8 (10) · Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Prompt Engineering, Responsible AI, Prompt Engineering Tools, Computer Vision, Model Optimization, Generative Model Architectures, Machine Learning Methods, AI Workflows, Machine Learning Algorithms, Applied Machine Learning, Artificial Intelligence, Model Training, Cloud Security, Amazon Elastic Compute Cloud, Risking, AI literacy, Embeddings, MLOps (Machine Learning Operations), Deep Learning, Data Wrangling
★ 4.5 (13) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Cloud Computing Architecture, Cloud Management, Cloud Security, Cloud Computing, Zero Trust Network Access, Business Continuity Planning, Business Continuity, Cloud Standards, Continuous Monitoring, Cloud Infrastructure, Hybrid Cloud Computing, Cloud Services, Data Migration, Resource Allocation, Security Management, Cloud Platforms, Data Management, Disaster Recovery, Infrastructure As A Service (IaaS), Cloud Deployment
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data-Driven Decision-Making, Minitab, Regression Analysis, Predictive Modeling, Logistic Regression, Statistical Hypothesis Testing, Statistical Analysis, Scatter Plots, Correlation Analysis, Data Analysis, Analytics, Data Analysis Software, Predictive Analytics, Statistical Methods, Descriptive Statistics, Statistical Software, Statistical Modeling, Advanced Analytics, Forecasting, Business Analytics
★ 4.8 (25) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: ASP.NET, .NET Framework, Software Design Patterns, Software Design, Maintainability, Software Architecture, Object Oriented Design, C# (Programming Language), Microsoft Visual Studio, Application Programming Interface (API), API Design, Restful API, Data Infrastructure, Development Testing, User Interface (UI), Object-Relational Mapping, Debugging, Unit Testing, Systems Architecture, Web Design and Development
Intermediate · Course · 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
★ 4.4 (23) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Google Cloud Platform, Kubernetes, CI/CD, DevOps, Application Deployment, Continuous Integration, Devops Tools, Test Automation, Development Testing, Containerization, Cloud Deployment, Continuous Deployment, Cloud Platforms, Release Management, Continuous Delivery, Software Development, Development Environment, System Monitoring, Version Control
★ 4 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Probability & Statistics, Statistics, Data Analysis, Statistical Analysis, Regression Analysis, Statistical Methods, Probability, Data Science, Statistical Modeling, Data-Driven Decision-Making, Bayesian Statistics, Classification And Regression Tree (CART), Statistical Machine Learning, Statistical Inference, Probability Distribution, Predictive Analytics, Applied Machine Learning, Correlation Analysis, Predictive Modeling, Data Preprocessing
★ 4.8 (11) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Security, Network Troubleshooting, Software-Defined Networking, Network Engineering, Network Monitoring, Virtual Networking, TCP/IP, Network Architecture, Computer Networking, Network Performance Management, Network Protocols, General Networking, Cybersecurity, Network Infrastructure, Network Administration, Local Area Networks, Network Analysis, OSI Models, Network Model, Network Routing
★ 4.6 (11) · Beginner · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Cloud Development, Amazon Elastic Compute Cloud, Cloud Applications, Cloud Infrastructure, Bioinformatics, Cloud Computing Architecture, Cloud Computing, Algorithms, Development Environment, Amazon Web Services, Cloud Platforms, Performance Tuning, Program Development, Computer Architecture, Hardware Architecture, Performance Testing, Computer Programming
★ 4.4 (26) · Intermediate · Course · 1 - 3 Months