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.
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

Illinois Tech
Skills you'll gain: Operating System Administration, Microsoft Windows, Operating Systems, System Configuration, Firewall, Linux Administration, Linux, System Monitoring, File Systems, System Support, Event Monitoring, Authorization (Computing), File Management, Network Security, Data Security
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Operations Research, Resource Allocation, Simulation and Simulation Software, Microsoft Excel, Business Analytics, Data-Driven Decision-Making, Operational Analysis, Transportation Operations, Analytics, Risk Modeling, Business Operations, Risk Analysis, Spreadsheet Software, Process Optimization, Statistical Methods, Business Modeling, Decision Making, Model Optimization, Logistics, Production Planning
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Application Design, Application Development, UI Components, Event-Driven Programming, Integrated Development Environments, Java Programming, User Interface (UI), Java, User Interface (UI) Design, Application Frameworks
Intermediate · Guided Project · Less Than 2 Hours

Illinois Tech
Skills you'll gain: Bayesian Statistics, Data Analysis, Statistical Inference, Regression Analysis, Statistical Methods, Statistical Analysis, Statistical Modeling, Statistical Programming, Statistical Software, Sampling (Statistics), R (Software), Numerical Analysis, Markov Model, Logistic Regression, Probability, Simulations, Model Evaluation, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Vibe coding, AI Workflows, Generative AI Agents, Generative AI, AI Personalization, Software Development Tools, GitHub, Application Development, Artificial Intelligence, Code Review, Responsible AI, Design Software, Web Development Tools, Front-End Web Development, Software Development, React.js, Javascript, Web Development, Software Engineering
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Marketing Effectiveness, Marketing Analytics, Campaign Planning, Campaign Management, Market Analysis, Marketing Strategies, Performance Reporting, Return On Investment, Data-Driven Marketing, Performance Measurement, Data Visualization Software, Data Ethics, Marketing Channel, Smart Goals, Key Performance Indicators (KPIs), Growth Strategies, Data Access, Data Quality
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Development Tools, Web Design and Development, Web Design, Web Development, Front-End Web Development, Software Development Tools, Semantic Web, Development Environment, Integrated Development Environments
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Generative Model Architectures, GitHub Copilot, Retrieval-Augmented Generation, Artificial Intelligence and Machine Learning (AI/ML), Google Gemini, Responsible AI, Embeddings, Gemini, Software Development Tools, AI Integrations
Beginner · Course · 1 - 4 Weeks

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, Product Quality (QA/QC), Brainstorming
Beginner · Specialization · 3 - 6 Months

Keller Williams
Skills you'll gain: Lead Generation, Value Propositions, Sales Development, Prospecting and Qualification, Sales Process, Real Estate Sales, Sales Prospecting, Sales Management, Booking (Sales), Customer Acquisition Management, Brand Marketing, Sales Pipelines, Branding, Market Opportunities, Social Media Content, Property and Real Estate, Brand Strategy, Property Management, Customer Relationship Management, Communication
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, UI Components, Web Design, Web Design and Development, Front-End Web Development, Animations, Mockups, User Interface (UI), User Interface (UI) Design, Web Development, Debugging
Intermediate · Specialization · 1 - 3 Months