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.

Heriot-Watt University
Skills you'll gain: Object Oriented Programming (OOP), Java, Java Programming, Computer Programming, Application Development, Program Development, Programming Principles, Computational Logic, Software Development, Software Development Life Cycle, Debugging
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Java, Context Management, Web Applications, Server Side, Data Storage, Data Sharing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Code Reusability, Computational Logic, Scripting Languages, Functional Design, Computer Programming
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: File I/O, Object Oriented Programming (OOP), C++ (Programming Language), Object Oriented Design, Video Game Development, Unreal Engine, Game Design, Event-Driven Programming, Unity Engine, C# (Programming Language), UI Components, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Incident Response, Computer Security Incident Management, Cyber Threat Hunting, Vulnerability Management, Event Monitoring, Threat Detection, Intrusion Detection and Prevention, Cybersecurity, Cyber Attacks, Security Controls, Security Information and Event Management (SIEM), Vulnerability Assessments, Threat Management, Exploitation techniques, Network Monitoring, Anomaly Detection
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Mathematics Education, Education Software and Technology, Research, Qualitative Research, Physical Science
Mixed · Course · 1 - 3 Months

Skills you'll gain: Mathematics Education, Education Software and Technology
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Time Series Analysis and Forecasting, Exploratory Data Analysis, Model Evaluation, Feature Engineering, Data Preprocessing, Statistical Analysis, Forecasting, Regression Analysis, Python Programming, Data Analysis, Predictive Modeling, Data Science, Data Processing, Data Transformation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Open Shortest Path First (OSPF), Network Performance Management, Network Monitoring, Network Planning And Design, Network Engineering, Network Protocols, Infrastructure as Code (IaC), Terraform, Configuration Management, Encryption, System Configuration, Authentications, Scalability
Beginner · Specialization · 3 - 6 Months
Codio
Skills you'll gain: Infrastructure as Code (IaC), Terraform, Docker (Software), Kubernetes, Program Development, Ansible, Containerization, Ubuntu, Cloud Management, Cloud Platforms, Cloud Deployment, Application Deployment, Firewall, Infrastructure As A Service (IaaS), Security Controls, Cloud Infrastructure, Unix, Development Environment, Amazon Web Services, IT Automation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Statistical Process Controls, Kaizen Methodology, Customer Relationship Management, Six Sigma Methodology, Quality Management, Lean Methodologies, Quality Monitoring, Continuous Quality Improvement (CQI), Quality Management Systems, Continuous Improvement Process, Operational Excellence, Quality Improvement, Process Improvement, Software Quality Assurance, Lean Six Sigma, Customer experience strategy (CX), Quality Control, Supplier Quality Management, Production Management, Product Quality (QA/QC)
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Java, Data Structures, File I/O, Java Programming, Data Access, Data Cleansing
Intermediate · Guided Project · Less Than 2 Hours