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.

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Microarchitecture, Program Development, Distributed Computing, Performance Testing, Algorithms, Memory Management, Computer Hardware, C (Programming Language)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Analysis, Analytics, Data Literacy, Correlation Analysis, Applied Machine Learning, Data Visualization, Machine Learning
Mixed · Course · 1 - 3 Months

Skills you'll gain: Performance Tuning, No-Code Development, Performance Testing, Business Process Automation, Operational Analysis, Automation, Performance Analysis, Process Improvement and Optimization, System Monitoring, Operational Excellence, Process Optimization, Operational Efficiency, Business Priorities, Maintainability, Workflow Management, Project Performance, Cost Benefit Analysis, Scalability, Analysis, Solution Architecture
Intermediate · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Surveys, Market Research, Survey Creation, Marketing Psychology, Focus Group, Consumer Behaviour, Interviewing Skills, Business Research, Target Market, Market Intelligence, Marketing Strategies, Market Analysis, Qualitative Research, Marketing Planning, Persona Development, Customer Insights, Discussion Facilitation, Decision Making
Mixed · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Web Servers, Server Side, Full-Stack Web Development, Network Protocols, Debugging, Javascript, Web Applications, Cryptography, Real Time Data
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Model Optimization, Simulations, Plot (Graphics)
Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Data Storage Technologies, Probability & Statistics, Statistics, Data Store, Mathematical Software, Data Storage, Data Access, Statistical Machine Learning, Database Software, Statistical Hypothesis Testing, Data Manipulation, Data Transformation, Model Evaluation
Intermediate · Course · 1 - 4 Weeks

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

Board Infinity
Skills you'll gain: Git (Version Control System), GitHub, Version Control, Software Development
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Test Driven Development (TDD), C and C++, C++ (Programming Language), Debugging, Maintainability, C (Programming Language), System Programming, Functional Design, Secure Coding, Software Architecture, Cross Platform Development, Memory Management, Interoperability, Performance Tuning, Network Troubleshooting
Beginner · Course · 1 - 3 Months

Skills you'll gain: Performance Metric, Predictive Modeling, Data-Driven Decision-Making, Failure Analysis, Statistical Analysis, Statistical Hypothesis Testing, Sampling (Statistics)
Intermediate · Course · 1 - 4 Weeks

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