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.

National Taiwan University
Skills you'll gain: Logistic Regression, Sampling (Statistics), Model Evaluation, Statistical Methods, Regression Analysis, Statistical Hypothesis Testing, Statistical Modeling, Statistical Programming, Statistical Analysis, R Programming, Business Analytics, Predictive Modeling, Advanced Analytics, Estimation, Probability & Statistics, Statistical Inference
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Overcoming Objections, A/B Testing, Copywriting, Persuasive Communication, B2B Sales, Email Marketing, Sales Strategy, Business Writing, Sales, Communication, Selling Techniques, Data-Driven Decision-Making, Prompt Engineering, Responsible AI, Data Ethics, Performance Analysis, Business Metrics, Community Outreach, Digital Communications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Development, Microservices, Scalability, Cloud Deployment, Microsoft SQL Servers, Cloud Computing Architecture, Distributed Computing, Microsoft Visual Studio, Application Deployment, Cloud Storage, Integrated Development Environments
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Apache Hadoop, Big Data, Application Deployment, Social Network Analysis, Data Processing, Distributed Computing, Java, Text Mining, Graph Theory
Mixed · Course · 1 - 3 Months

Skills you'll gain: Visualforce, Salesforce Development, Salesforce Object Query Language (SOQL), Salesforce, User Provisioning, Interviewing Skills, Data Security, Workflow Management, Authorization (Computing), Role-Based Access Control (RBAC), Business Process Automation, Identity and Access Management, Data Management, Data Sharing, Transaction Processing, Data Validation, Code Coverage, Unit Testing, Data Processing, Debugging
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Apache Maven, Build Tools, Dependency Analysis, IntelliJ IDEA, Integrated Development Environments, Package and Software Management, Software Configuration Management, Eclipse (Software), Configuration Management, Software Installation, Code Coverage, Shell Script, Project Management, Software Documentation, Automation, Systems Integration, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Layout Design, Bootstrap (Front-End Framework), Web Design, Front-End Web Development, Web Development, Visual Design, Browser Compatibility, Typography, User Interface (UI), Scalability, Web Content Accessibility Guidelines, Development Environment, Visual Basic (Programming Language), Semantic Web, Software Engineering Tools, Debugging, Development Testing, Building Codes
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Dataflow, Data Pipelines, Live Streaming, Real Time Data, File I/O, Javascript, Server Side, Interoperability, TCP/IP, Servers, Front-End Web Development
Intermediate · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Retrieval-Augmented Generation, Rust (Programming Language), Code Coverage, grep, Generative AI, Data Pipelines, Embeddings, Program Development, Large Language Modeling, GitHub, Natural Language Processing, Vector Databases, Query Languages, Applied Machine Learning, Software Engineering
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Dashboard, Dashboard Creation, User Feedback, Data Presentation, Data Storytelling, Data Visualization, Organizational Skills, Usability Testing, Data-Driven Decision-Making, Team Performance Management, Constructive Feedback, Prioritization, Project Scoping, Jira (Software), Stakeholder Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Performance Management, Wireless Networks, Network Monitoring, Local Area Networks, Network Troubleshooting, Performance Tuning, Performance Testing, Computer Networking, Verification And Validation
Intermediate · Course · 1 - 4 Weeks

University of Alberta
Skills you'll gain: Program Development, Computational Thinking, Software Development, Event-Driven Programming, Programming Principles, Software Engineering, Debugging, Problem Solving, Game Design, Theoretical Computer Science, Computer Programming, Software Quality (SQA/SQC), Data Structures, Python Programming, Video Game Development, Algorithms, Application Development, Computer Science, Functional Testing, User Interface (UI) Design
Intermediate · Course · 1 - 3 Months