Software testing courses can help you learn test planning, test case design, automated testing, and performance testing. You can build skills in identifying bugs, writing effective test scripts, and using various testing methodologies. Many courses introduce tools like Selenium for automation, JUnit for unit testing, and JIRA for issue tracking, showing how these skills apply in real-world software development environments.

Red Hat
Skills you'll gain: Object Oriented Programming (OOP), File I/O, JSON, Python Programming, Debugging, Object Oriented Design, Data Structures, Red Hat Enterprise Linux, Programming Principles, Statistical Programming, Web Development, Program Development, Scripting, Integrated Development Environments, Development Environment, Software Installation
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Virtual Private Networks (VPN), Linux Servers, Ubuntu, Network Troubleshooting, Authentications, Linux Administration, Remote Access Systems, Cryptographic Protocols, Virtual Networking, Encryption, Network Security, Linux, Network Monitoring, Network Performance Management, Linux Commands, Interoperability, Key Management
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Encryption, Cybersecurity, Threat Detection, Exploitation techniques, Data Encryption Standard, Threat Modeling, Security Awareness, Cryptography, Cyber Attacks, Data Security, Databases, Malware Protection, Penetration Testing, AI Security, Vulnerability Assessments, Application Security, Security Engineering, Artificial Intelligence, SQL
★ 5 (6) · Beginner · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Sales Pipelines, Prospecting and Qualification, Sales Development, Sales Process, Persuasive Communication, Communication, Value Propositions, B2B Sales, Technical Sales, Sales Prospecting, Overcoming Objections, Communication Strategies, Customer Relationship Management (CRM) Software, Product Demonstration, Sales, Sales Strategy, Lead Generation, Market Analysis, Market Dynamics, Market Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: WordPress, Order Processing, Order Management, Payment Processing, Content Management Systems, E-Commerce, Payment Systems, Merchant Services, Web Content, Software Installation, Shipping and Receiving, Sales Tax, Email Automation, System Configuration
★ 5 (11) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ledgers (Accounting), Accounting Records, Payroll Reporting, Accounting and Finance Software, Small Business Accounting, Accounting Systems, Balancing (Ledger/Billing), Payroll Processing, Billing & Invoicing, Payroll Systems, Payroll Administration, General Accounting, Standard Accounting Practices, Workflow Management
★ 4.8 (13) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Protocols, Network Support, Network Monitoring, Network Analysis, TCP/IP, Network Security, Cybersecurity
★ 4.2 (6) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Bayesian Network, Numerical Analysis, Markov Model, Estimation, Simulations, Integral Calculus, Matlab, Mathematical Modeling, Applied Mathematics, Simulation and Simulation Software, Algorithms, Brute-force attacks, Computer Programming Tools
★ 4.9 (7) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Large Language Modeling, Fine-tuning, LangChain, Model Optimization, Hugging Face, Technical Management, Analysis, Design
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Scaled Agile Framework, Kaizen Methodology, Lean Methodologies, Quality Improvement, Continuous Improvement Process, Process Improvement, DevOps, Scrum (Software Development), Sprint Planning, Agile Software Development, Agile Product Development, Agile Project Management, Continuous Delivery, Scalability, Organizational Development, CI/CD, Agile Methodology, Performance Metric, Coordinating, Continuous Integration
★ 3.3 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Discussion Facilitation, Collaborative Software, Community Organizing, Control Panels, Driving engagement, System Configuration
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Dashboard, Dashboard Creation, Data Visualization, Data Presentation, Pivot Tables And Charts, Ad Hoc Reporting, Data Storytelling, Business Intelligence, Data Modeling, Concision, Design Reviews
Intermediate · Course · 1 - 4 Weeks