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: Telehealth, Patient Positioning, Health Assessment, Clinical Assessment, Health Technology, Patient Education And Counseling, Human Musculoskeletal System
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Agentic Workflows, LangGraph, AI Orchestration, Data Visualization, Prompt Engineering, Generative AI Agents, Model Evaluation, LLM Application, Tool Calling, Retrieval-Augmented Generation, Agentic systems, Data Validation, Generative AI, Large Language Modeling
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: AWS SageMaker, Unsupervised Learning, Feature Engineering, Time Series Analysis and Forecasting, Model Deployment, Cloud Deployment, Amazon Web Services, Applied Machine Learning, Advanced Analytics, Machine Learning Methods, Amazon S3, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, Model Evaluation, Statistical Analysis, MLOps (Machine Learning Operations), Predictive Analytics, Data Preprocessing, Supervised Learning, Regression Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: JavaScript Frameworks, Event-Driven Programming, Javascript, Frontend Performance, Web Components, Object Oriented Programming (OOP), Web Development, Web Design and Development, Scripting, UI Components, Development Environment, Data Validation, Real Time Data, Browser Compatibility, Programming Principles, Data Storage, HTML and CSS, Maintainability, Debugging
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Project Closure, Agile Project Management, Product Roadmaps, Project Management, Agile Software Development, Stakeholder Engagement, Backlogs, Procurement, Scope Management, Project Management Life Cycle, Agile Methodology, Project Controls, Project Risk Management, Project Planning, Project Schedules, Project Scoping, Project Estimation, Project Implementation, Waterfall Methodology, Project Performance
Beginner · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: OpenAI, Code Review, Integrated Development Environments, Tool Calling, Cloud Development, Prompt Engineering, Computer Programming Tools, AI Workflows, Development Environment, Context Management, Command-Line Interface, Generative AI, Software Technical Review, Generative AI Agents, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence
Intermediate · Course · 1 - 4 Weeks

University of Pittsburgh
Skills you'll gain: Probability Distribution, Data Science, Probability & Statistics, Predictive Analytics, Probability, Statistical Modeling, Data Analysis, Regression Analysis, Logistic Regression, Statistical Analysis, Statistical Methods, Statistical Machine Learning, Bayesian Statistics, Statistical Inference, Feature Engineering, Applied Mathematics, Python Programming, Machine Learning, Algorithms
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Slack (Software), Collaborative Software, Marketing Materials, Content Creation, Marketing Design, Content Marketing, Corporate Communications, Shared Media, Facebook, Social Media Content, Graphic Design, User Accounts, Marketing Communications, Multimedia, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Data Ethics, Predictive Modeling, No-Code Development, Model Deployment, Data Visualization, Data Presentation, Responsible AI, Data-Driven Decision-Making, Advanced Analytics, Business Intelligence, Business Analytics, Data Cleansing, Business Reporting, Global Marketing, LLM Application, AI Enablement, User Feedback, Data Preprocessing, Predictive Analytics, Data Architecture
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Email Security, Mobile Security, Network Security, Open Web Application Security Project (OWASP), Threat Detection, TCP/IP, Network Analysis, Network Protocols, Cybersecurity, Application Security, Exploitation techniques, Wireless Networks, Splunk, Information Privacy
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Penetration Testing, Vulnerability Assessments, Firewall, Exploitation techniques, Human Factors (Security)
Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Computational Thinking, Debugging, Programming Principles, Technical Communication, Computer Programming, Digital pedagogy, Event-Driven Programming, Program Development, Data Structures, Algorithms, Student Engagement, Visualization (Computer Graphics)
Beginner · Course · 1 - 3 Months