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.

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, Software Design Patterns, Unified Modeling Language, Java Programming, Software Architecture, Application Design, User Interface and User Experience (UI/UX) Design, Software Engineering, API Design, Software Development
Build toward a degree
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Open Web Application Security Project (OWASP), Exploit development, Exploitation techniques, Internet Of Things, Cyber Security Assessment, Vulnerability Scanning, Vulnerability Assessments, Test Tools, USB, Embedded Systems, Network Security, Test Equipment, General Networking, Serial Peripheral Interface
Beginner · Course · 1 - 3 Months

Skills you'll gain: Mac OS, Microsoft Windows, Operating System Administration, Desktop Support, System Support, End User Training and Support, System Configuration, Computer Displays, Software Installation, Android (Operating System), Apple iOS, Mobile Security, Patch Management, System Monitoring, Application Performance Management, OS Process Management, Browser Compatibility, Collaborative Software, Data Maintenance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Seaborn, Data Storytelling, Data Presentation, Statistical Visualization, Data Visualization, Data Literacy, Data Visualization Software, Matplotlib, Box Plots, Scatter Plots, Statistical Analysis, Heat Maps, Histogram, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Enterprise Application Management, Project Management, Configuration Management, Change Control, Data Management, End User Training and Support, Data Import/Export
Beginner · Course · 1 - 3 Months

Skills you'll gain: Docker (Software), Containerization, Application Deployment, Software Installation, Development Environment
Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Apache Hadoop, Apache Hive, Big Data, Apache Spark, NoSQL, Data Management, Data Processing, Databases, SQL, Query Languages, Data Manipulation, Scripting Languages, Data Transformation, Distributed Computing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Amazon CloudWatch, Interactive Data Visualization, Application Performance Management, Security Controls, Cloud-Native Computing, Authentications, Network Monitoring, DevOps, Site Reliability Engineering, Amazon Web Services, System Configuration, Service Management, Software Installation
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Linux Commands, Linux Administration, Network Troubleshooting, Linux, Network Administration, File Transfer Protocol (FTP), Virtual Networking, TCP/IP, Network Infrastructure, Network Protocols, Command-Line Interface, System Configuration, Virtualization, General Networking, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prometheus (Software), Google Cloud Platform, Kubernetes, Application Performance Management, Application Deployment, Cloud Applications
Beginner · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Cleansing, Data Validation, Spreadsheet Software, Data Quality, Data Manipulation, Data Analysis, Data Analysis Software
Intermediate · Project · Less Than 2 Hours

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks