Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Skills you'll gain: Open Web Application Security Project (OWASP), API Design, Application Programming Interface (API), Application Security, Secure Coding, Security Controls, Vulnerability Assessments, Authorization (Computing), Hardening, Cryptographic Protocols, Cryptography, Authentications, Exploitation techniques
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), JSON, HTML and CSS, Web Content Accessibility Guidelines, Javascript, Application Programming Interface (API), Web Design, Semantic Web, Usability, Web Applications, Web Development, Test Tools, Web Content, Front-End Web Development, Data Structures, Application Frameworks, Network Protocols, Data Ethics, Animations
★ 4.8 (13) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Feature Engineering, Model Evaluation, Predictive Modeling, Model Deployment, Model Training, Predictive Analytics, R (Software), R Programming, Data Analysis, Statistical Analysis, Data Wrangling, Data Cleansing, Data Manipulation, Classification Algorithms, Data Import/Export, Data Preprocessing, Machine Learning
★ 4.5 (33) · Intermediate · Guided Project · Less Than 2 Hours

AI CERTs
Beginner · Course · 1 - 3 Months

Skills you'll gain: AWS SageMaker, Amazon Web Services, Model Deployment, Image Analysis, Applied Machine Learning, Model Training, Machine Learning Algorithms, Data Preprocessing, Computer Vision, Deep Learning, Machine Learning
★ 4.5 (95) · Advanced · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Data Lakes, Data Warehousing, Apache Hive, Data Pipelines, Analysis, Automation
Advanced · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: Portfolio Management, Investments, Investment Management, Financial Market, Portfolio Risk, Capital Markets, Finance, Equities, Market Liquidity, Risk Modeling, Risk Analysis, Financial Modeling, Asset Management, Return On Investment, Financial Analysis, Risk Management, Market Dynamics, Business Valuation, Correlation Analysis
★ 4.8 (113) · Intermediate · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Large Language Modeling, Data Ethics, AI Orchestration, Responsible AI, Prompt Patterns, AI literacy, Agentic Workflows, LLM Application, AI Enablement, AI Security, Context Engineering, AI Workflows, AI powered creativity, AI Personalization, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), Business Transformation, Business Operations, Personal Development
★ 4.9 (17) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Oracle Cloud, Oracle Databases, Oracle Cloud Applications, Data Infrastructure, Data Architecture, Data Migration, Database Administration, Database Software, Data Lakes, Database Architecture and Administration, Data Integration, NoSQL, Database Management, Cloud Management, MySQL, Cloud Deployment, Data Security, Security Controls, Machine Learning Methods
★ 4.6 (8) · Beginner · Course · 1 - 4 Weeks

University of Glasgow
Skills you'll gain: Wireless Networks, Emerging Technologies, Digital Communications, Communication Systems, Internet Of Things, Software-Defined Networking, Network Planning And Design, Distributed Computing, Artificial Intelligence and Machine Learning (AI/ML), Electrical Engineering, Electronics Engineering, Zero Trust Network Access, AI Integrations, Information Technology, Machine Learning, Trustworthiness
★ 4.8 (8) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Persuasive Communication, Enterprise Sales, Global Marketing, Drive Engagement, Value Propositions, Proposal Development
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: CI/CD, Azure DevOps, Continuous Integration, Cloud Deployment, Application Deployment, Microsoft Azure, Azure DevOps Pipelines, Cloud Services, Continuous Deployment, DevOps, Cloud Applications, Cloud Security, Microsoft Development Tools, Application Performance Management, Microsoft Copilot, Cloud Management, Capacity Management, System Monitoring, Debugging
★ 4.2 (25) · Beginner · Course · 1 - 3 Months