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.

Duke University
Skills you'll gain: Software Design, Code Reusability, Program Development, Java, Java Programming, AI Personalization, Object Oriented Programming (OOP), Data Preprocessing, Data Structures, Algorithms, File I/O, Hypertext Markup Language (HTML)
★ 4.7 (660) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, CI/CD, Google Cloud Platform, Continuous Integration, Continuous Deployment, Cloud-Native Computing, Continuous Delivery, Application Deployment, Cloud-Based Integration, Cloud Services, Application Performance Management, Cloud Storage, Cloud Security, Role-Based Access Control (RBAC), Identity and Access Management, Data Storage, Authorization (Computing), Authentications
★ 4.7 (954) · Intermediate · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Real-Time Operating Systems, Embedded Systems, Embedded Software, System Programming, Systems Design, System Software, C (Programming Language), System Design and Implementation, OS Process Management, System Requirements, Dependency Analysis, Computer Architecture, Systems Analysis, Verification And Validation, Algorithms
★ 4.6 (541) · Intermediate · Course · 1 - 3 Months

American Museum of Natural History
Skills you'll gain: Climate Change Mitigation, Social Sciences, Environmental Issue, Climate Change Adaptation, Socioeconomics, Economics, Policy, and Social Studies, Mitigation, Scientific Methods, Environmental Science, Physical Science, General Science and Research, Social Impact, Media and Communications, Hydrology, Mathematical Modeling, Simulation and Simulation Software, Model Evaluation
★ 4.7 (818) · Mixed · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Object Oriented Programming (OOP), Algorithms, Object Oriented Design, Software Engineering, Program Development, Matlab, Application Development, Computer Programming, Theoretical Computer Science, Programming Principles, Engineering Calculations, Mathematical Software, Engineering Analysis, Applied Mathematics, Numerical Analysis, Scripting, Performance Tuning, User Interface (UI)
★ 4.8 (435) · Intermediate · Course · 1 - 3 Months

Tableau Learning Partner
Skills you'll gain: Tableau Software, Data Presentation, Interactive Data Visualization, Data Visualization Software, Data Wrangling, Data Preprocessing, Data Integration, Data Cleansing, Performance Tuning
★ 4.8 (322) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Docs, Google Workspace, Productivity Software, Collaborative Software, Document Management, Data Sharing, Document Control, File Management, Version Control, Editing, Cloud Storage
★ 4.7 (426) · Beginner · Course · 1 - 3 Months

IE Business School
Skills you'll gain: Market Analysis, Integrated Marketing Communications, Market Research, Customer Acquisition Management, Marketing Analytics, Marketing Communications, Marketing Management, Customer Analysis, Performance Measurement, Customer Retention, Performance Metric, Growth Strategies, Marketing Channel, Planning, Financial Management
★ 4.6 (494) · Mixed · Course · 1 - 4 Weeks

Snowflake
Skills you'll gain: Prompt Engineering, Retrieval-Augmented Generation, Generative AI, AI Orchestration, Fine-tuning, Agentic Workflows, AI Workflows, Generative Model Architectures, LLM Application, Data Engineering, Data Manipulation, Model Context Protocol, Data Store, Large Language Modeling, Artificial Intelligence, Application Deployment, Tool Calling, Data Warehousing, Embeddings, SQL
★ 4.7 (284) · Beginner · Professional Certificate · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Matplotlib, Data Analysis, Pandas (Python Package), Plot (Graphics), Data Visualization, Data Science, Data Cleansing, Pivot Tables And Charts, Data Visualization Software, Data Processing, Data Wrangling, Data Integration, Data Preprocessing, Data Manipulation, Scatter Plots, NumPy, Exploratory Data Analysis, Data Import/Export, Histogram, Python Programming
★ 4.5 (433) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Persistence, Object Oriented Design, Java, Java Programming, File Management, Memory Management, Code Reusability, Application Development, Maintainability, Computer Programming, Software Design, Development Environment, Program Development, Application Design, Programming Principles, Computer Programming Tools, Data Structures, Integrated Development Environments
★ 4.6 (253) · Beginner · Specialization · 3 - 6 Months

University of Alberta
Skills you'll gain: Computational Thinking, Video Game Development, Game Design, Software Quality (SQA/SQC), Problem Solving, Programming Principles, Computer Programming, Program Development, Algorithms, Python Programming, Computer Science, Debugging, Test Planning, Functional Testing, Other Programming Languages
★ 4.3 (238) · Beginner · Course · 1 - 3 Months