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: Node.JS, TypeScript, Secure Coding, OAuth, Data Validation, Full-Stack Web Development, Web Applications, Application Security, Authentications, Web Development, Back-End Web Development, Javascript, Data Modeling, Middleware, Data Migration, Application Deployment, API Design, E-Commerce
Intermediate · Course · 1 - 3 Months

Rice University
Skills you'll gain: Combinatorics, Probability, Programming Principles, Computational Thinking, Computer Programming, Object Oriented Programming (OOP), Software Testing, Applied Mathematics, Algorithms, Python Programming, Game Design, General Mathematics
★ 4.7 (584) · Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Amazon Redshift, Query Languages, SQL, Data Warehousing, Database Management, Database Design, Data Mapping, Google Cloud Platform, Identity and Access Management, Data Architecture, AWS Identity and Access Management (IAM), Data Migration, Database Architecture and Administration, Data Import/Export, Role-Based Access Control (RBAC), Data Modeling, Data Sharing
Intermediate · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Serverless Computing, Amazon Web Services, Amazon S3, Rust (Programming Language), Other Programming Languages, Cloud-Native Computing, Cloud Deployment, Performance Tuning, Data Engineering, Computing Platforms, Event-Driven Programming, Performance Testing, Ruby (Programming Language), Cloud Computing, Development Environment, Application Deployment, Build Tools, Memory Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Application Security, Security Testing, DevSecOps, Threat Modeling, Vulnerability Scanning, Continuous Monitoring, Vulnerability Assessments, Application Performance Management, System Monitoring, Vulnerability Management, Development Environment, Security Controls, DevOps, Data Security, Software Development Life Cycle
★ 4.7 (251) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Meta Ads Manager, A/B Testing, Data-Driven Marketing, Marketing Analytics, Advertising Campaigns, Campaign Management, Data Presentation, Presentations, Online Advertising, Marketing Effectiveness, Content Performance Analysis, Paid media, Social Media Campaigns, Advertising, Marketing Strategies, Conversion Funnel Analysis, Social Media Marketing, Facebook, Data-Driven Decision-Making, Data Analysis
★ 4.8 (262) · Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Statistical Inference, Statistics, Bayesian Statistics, Probability & Statistics, Data-Driven Decision-Making, Statistical Analysis, Sampling (Statistics), Jupyter, Analysis, Statistical Programming, Statistical Software, Python Programming
★ 4.6 (937) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Laboratory Procedures, Laboratory Testing, Chemistry, Safety Standards, Product Design, Regulatory Compliance, Mathematical Modeling, Product Testing, Design Specifications, Materials science, Personal protective equipment, Record Keeping, Quality Assurance, Product Development, Technical Documentation, Performance Testing
★ 4.7 (128) · Beginner · Course · 1 - 3 Months

Universidade de São Paulo
Skills you'll gain: Object Oriented Programming (OOP), Computer Programming, Theoretical Computer Science, Python Programming, Algorithms, Object Oriented Design, Data Structures, Programming Principles, Code Reusability, Computer Science, Computational Thinking, Maintainability, Software Testing
★ 4.9 (1.6K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: C and C++, C++ (Programming Language), Development Environment, Performance Tuning, Test Tools, System Programming, Docker (Software), Computer Architecture, Containerization, Development Testing, Programming Principles, Software Development Tools, Hardware Architecture, Algorithms, Computer Programming, Python Programming, Debugging, Memory Management, Software-Defined Networking, Scripting
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Qualitative Research, Interviewing Skills, Focus Group, Business Research, Market Analysis, Customer Analysis, Data Collection
Beginner · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Model Context Protocol, Vibe coding, Context Engineering, AI Product Strategy, Responsible AI, Agile Product Development, Prompt Engineering, No-Code Development, Prototyping, AI Personalization, Application Development, Artificial Intelligence, AI literacy, AI Workflows, AI Integrations, Application Design, Generative AI Agents, User Experience Design, Human Centered Design, User Interface and User Experience (UI/UX) Design
Beginner · Course · 1 - 3 Months