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.

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Systems Architecture, Software Architecture, Embedded Software, Software Design, System Design and Implementation, Embedded Systems, Performance Tuning, Systems Analysis, Electronic Hardware, Hardware Design, Electronic Systems, Systems Design, Hardware Architecture, System Software, Electrical and Computer Engineering, Requirements Analysis, System Programming, Reliability, Service Level
★ 4 (124) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Kubernetes, Application Deployment, API Gateway, Cloud-Native Computing, Containerization, Network Troubleshooting, Data Storage, Network Administration, Infrastructure Security, Role-Based Access Control (RBAC), YAML, Security Controls, Linux Administration, Data Storage Technologies, General Networking, Problem Management, Network Security, Data Persistence, Test Tools, Scenario Testing
★ 4.4 (18) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Database Software, Hardware Troubleshooting, Networking Hardware, Database Theory, Database Management Systems, Computer Networking, Network Support, Network Protocols, Security Software, Cybersecurity, Encryption, Security Awareness, Computer Literacy, Browser Compatibility, Program Development, Computing Platforms, Computer Programming, System Software, Authentications, Database Management
★ 4.5 (12) · Beginner · Specialization · 1 - 3 Months

Interactive Brokers
Skills you'll gain: Financial Trading, International Finance, Financial Market, Securities Trading, Equities, Capital Markets, Securities (Finance), Market Data, Market Dynamics, Market Liquidity, Investments, Portfolio Risk, Profit and Loss (P&L) Management, Market Analysis, Order Management
★ 4.3 (246) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Recurrent Neural Networks (RNNs), Generative AI, Fine-tuning, Model Training, Vision Transformer (ViT), Model Optimization, Large Language Modeling, Embeddings, Network Architecture
★ 4.5 (68) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, Data-Driven Marketing, Personalized Campaigns, Prompt Engineering Tools, Prompt Patterns, Marketing Automation, Marketing Operations, AI Personalization, Marketing Effectiveness, Content Marketing, Campaign Planning, Social Media Campaigns, Content Performance Analysis, Marketing Strategies, Agentic Workflows, Marketing Analytics, Customer Relationship Management (CRM) Software, Customer Relationship Management, Data-Driven Decision-Making, Driving engagement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Tensorflow, Convolutional Neural Networks, Applied Machine Learning, Image Analysis, Python Programming, Jupyter, Artificial Neural Networks, Deep Learning, Software Visualization, Machine Learning
★ 4.4 (84) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Database Design, Frontend Integration, Continuous Integration, Restful API, Database Development, Docker (Software), Model View Controller, Front-End Web Development, Relational Databases, Databases, Web Design and Development, User Story, CI/CD, Java, Java Programming, Database Application, Full-Stack Web Development, Spring Boot, Back-End Web Development, Software Design Documents
★ 4.3 (10) · Advanced · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Case Studies, Digital Transformation, Advanced Analytics, Business Analytics, Analytics, Business Analysis, Predictive Analytics, Data Analysis, Analytical Skills, Health Informatics, Value Propositions, Consulting, Business Transformation, Data Strategy
★ 3.7 (210) · Mixed · Course · 1 - 4 Weeks
University of Pennsylvania
Skills you'll gain: Demography, Market Trend, Trend Analysis, International Relations, International Finance, Socioeconomics, Social Sciences, Cultural Diversity, Political Sciences, Financial Systems, World History, Economic Development, Economics, Business Economics, Consumer Behaviour, Financial Policy, Public Safety and National Security, Governance
★ 4.8 (926) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Embedded Software, Embedded Systems, Pseudocode, Microarchitecture, Hardware Architecture, Computer Architecture, Software Design, System Programming, Systems Design, Software Design Patterns, Systems Integration, Programming Principles, Event-Driven Programming, Program Development, Real Time Data, Peripheral Devices, Memory Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Data Wrangling, Statistical Analysis, Data Analysis, Model Evaluation, Data Transformation, R Programming, Data Visualization, Regression Analysis, Predictive Modeling, Statistical Methods, R (Software), Data Manipulation, Plot (Graphics), Data Science, Box Plots, Statistical Visualization, Correlation Analysis, Model Training, Tidyverse (R Package)
★ 4.7 (377) · Intermediate · Course · 1 - 3 Months