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.

Johns Hopkins University
Skills you'll gain: Large Language Modeling, Email Security, Exploitation techniques, AI Security, Border Gateway Protocol, Malware Protection, Mobile Security, Cybersecurity, Network Security, Open Web Application Security Project (OWASP), TCP/IP, Threat Detection, Network Analysis, Internet Of Things, Network Protocols, Network Monitoring, Responsible AI, Network Routing, Infrastructure Security, Application Security
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Operating System Administration, Storage vMotion, IT Automation, Hardening, Package and Software Management, Network Troubleshooting, Command-Line Interface
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Exploratory Data Analysis, Teradata SQL, JSON, Data Integration, Advanced Analytics, Data Cleansing, Text Mining, Data Quality, Data Analysis, Statistical Analysis, Application Programming Interface (API), Database Management, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Sales Presentation, Canva (Software), Presentations, Microsoft PowerPoint, Advertising, Prompt Engineering, Branding, Photo Editing, Generative AI, Video Editing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: React.js, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Front-End Web Development, Data Management, JavaScript Frameworks, Javascript, API Design, Data Validation, Real Time Data, Web Development
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: AI Workflows, Cloud Computing Architecture, Performance Tuning, Interoperability, Product Demonstration, Performance Improvement, Benchmarking, Hardware Architecture, Systems Architecture
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Spring Boot, Full-Stack Web Development, React.js, IntelliJ IDEA, Application Programming Interface (API), Object-Relational Mapping, JavaScript Frameworks, Integrated Development Environments, Front-End Web Development, YAML, Web Applications, Web Development Tools, Back-End Web Development, Data Access, User Interface (UI), MongoDB, UI Components, Application Frameworks, Databases
Intermediate · Specialization · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: Prompt Engineering, Generative AI, Code Review, Debugging, Responsible AI, Machine Learning Methods, Artificial Intelligence and Machine Learning (AI/ML), Maintainability, Data Cleansing
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Analysis, Matplotlib, Regression Analysis, Statistical Modeling, Data Science, Data Analysis, Data Visualization, Pandas (Python Package), Anomaly Detection, Time Series Analysis and Forecasting, Data Visualization Software, Data Collection, Data Manipulation, Application Programming Interface (API)
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Linux, File Management, Linux Commands, Ubuntu, User Accounts, Operating System Administration, Linux Administration, Command-Line Interface, File Systems
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Matplotlib, Linear Algebra, Data Visualization, NumPy, Machine Learning Algorithms, Pandas (Python Package), Seaborn, Data Science, Machine Learning, Data Analysis, Supervised Learning, Python Programming, Jupyter, Data Manipulation, Classification Algorithms, Regression Analysis, Data Structures, Software Installation
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Network Analysis, Social Network Analysis, Marketing Analytics, Unstructured Data, Semantic Web, Statistical Methods, Text Mining, Data Structures, JSON, Natural Language Processing, Data Visualization Software, Python Programming
Build toward a degree
Intermediate · Course · 1 - 4 Weeks