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.

Technical University of Denmark (DTU)
Skills you'll gain: Laboratory Testing, Quality Assurance, Microbiology, Infectious Diseases, Bioinformatics, Medical Laboratory, Molecular, Cellular, and Microbiology, Epidemiology, Public Health and Disease Prevention, Data Quality, Medical Science and Research, Biology, Public Health
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java, Java Programming, Programming Principles, Data Structures, Computer Programming, Object Oriented Programming (OOP), Development Environment, Debugging
Beginner · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Electrical Safety, Electrical Systems, High Voltage, Simulations, Electronic Components, Safety Standards, Estimation, Control Systems, Basic Electrical Systems, Thermal Management, Mathematical Modeling, Power Electronics, Electrical Power, Probability, Electrical Engineering, Electronic Systems, Model Evaluation, Simulation and Simulation Software, Engineering Calculations, Machine Learning Methods
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Threat Modeling, Data Visualization, Data Presentation, AI Security, A/B Testing, Open Web Application Security Project (OWASP), Security Testing, Security Requirements Analysis, Secure Coding, Application Security, System Monitoring, MLOps (Machine Learning Operations), Analytics, Data Governance, Cyber Governance, Data Cleansing, Data Processing, Data Management, Data Quality, Data Validation
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: LLM Application, Model Evaluation, Large Language Modeling, Retrieval-Augmented Generation, Vector Databases, MLOps (Machine Learning Operations), Performance Tuning, Debugging, Performance Testing, Query Languages, SQL, Statistical Hypothesis Testing, Statistical Analysis, Artificial Intelligence and Machine Learning (AI/ML), Data-Driven Decision-Making, Python Programming, Pandas (Python Package)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: jQuery, Javascript and jQuery, Responsive Web Design, HTML and CSS, Web Design and Development, Software Testing, Front-End Web Development, User Interface (UI) Design, Web Development Tools, Event-Driven Programming, Web Development, Hypertext Markup Language (HTML), Usability, Maintainability
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Seaborn, Data Storytelling, Data Integration, A/B Testing, Data Import/Export, Statistical Hypothesis Testing, Statistical Methods, Text Mining, Data-Driven Decision-Making, Git (Version Control System), Data Presentation, Matplotlib, Data Visualization, Pandas (Python Package), Version Control, GitHub, Statistical Analysis, Exploratory Data Analysis, Jupyter, NumPy
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Collection, Marketing, Marketing Analytics, Google Analytics, Digital Marketing, Customer Data Management, Application Programming Interface (API), Market Data, Personally Identifiable Information, Web Analytics, Information Privacy, API Gateway, Data Integration, Data Analysis, Data-Driven Decision-Making, Advertising
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Tensorflow, AI Enablement, AI Workflows, Cloud Computing Architecture, Performance Tuning, Scenario Testing, Interoperability, Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, Threat Modeling, Security Engineering, Security Testing, Hardening, Security Controls, Security Strategy, Penetration Testing, Data Validation, Model Evaluation, Information Privacy, Generative Adversarial Networks (GANs), Analysis, Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Robotic Process Automation, Email Automation, Business Process Automation, Transaction Processing, Human Resources Software, Automation, Process Design, Scenario Testing, Web Applications, Social Media Management, Software Architecture, Social Media, Microsoft Excel, Workflow Management, Brand Awareness, Market Analysis, Solution Design, Marketing Automation, Data Architecture, Data Management
Beginner · Specialization · 1 - 3 Months

Salesforce
Skills you'll gain: Sales Pipelines, Sales Process, Sales Operations, Customer Success Management, Order Management, Sales Management, Salesforce, Sales Support, Dashboard, Sales, Sales Development, Closing (Sales), Lead Generation, Request For Quotation (RFQ), Customer Relationship Management, Product Knowledge, B2B Sales, Customer Relationship Management (CRM) Software, Campaign Management, Data Visualization
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months