ETL testing courses can help you learn data extraction techniques, transformation processes, and loading verification methods. You can build skills in validating data integrity, creating test cases, and automating testing workflows. Many courses introduce tools like Apache Nifi, Talend, and Informatica, that support implementing ETL processes and ensuring data quality in various applications.

University of Virginia
Skills you'll gain: Design Thinking, Stakeholder Engagement, Innovation, Prototyping, Brainstorming, Storytelling, Human Centered Design, Ideation, User Experience Design, Creativity, Customer experience improvement, Service Design, Design Research, Process Mapping, User Experience, Problem Solving, Complex Problem Solving, Qualitative Research, Data Visualization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Webpack, Search Engine Optimization, Web Development Tools, Web Analytics and SEO, Performance Tuning, Build Tools, Debugging, Front-End Web Development, Test Automation, Development Testing, Performance Testing, Software Development Tools, WordPress, Javascript
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Responsive Web Design, Git (Version Control System), Web Development, Cascading Style Sheets (CSS), React.js, Version Control, Web Development Tools, Full-Stack Web Development, GitHub, HTML and CSS, Application Design, Software Design Documents, Game Design, Debugging, Software Testing, Unit Testing, Software Documentation, Software Development, Development Environment, Javascript
Beginner · Professional Certificate · 3 - 6 Months

Imperial College London
Skills you'll gain: Health Technology, Data Visualization Software, Telehealth, Agile Methodology, Interactive Data Visualization, Health Disparities, Patient Evaluation, Health Informatics, Health Care, Health Systems, Electronic Medical Record, Interoperability, Public Health, Health Policy, Tableau Software, Information Management, Digital Transformation, User Centered Design, Technology Strategies, Medical Privacy
Intermediate · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Open Web Application Security Project (OWASP), Penetration Testing, Metasploit, Security Testing, Exploit development, Security Strategy, Threat Modeling, Vulnerability Assessments, Cyber Security Assessment, Security Management, Vulnerability Scanning, Cyber Threat Intelligence, Threat Detection
Beginner · Course · 1 - 3 Months

Skills you'll gain: Immunology, Infectious Diseases, Chronic Diseases, Physiology, Hematology, Pathology, Molecular Biology, Diagnostic Tests, Cell Biology, Biochemistry
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Laboratory Experience, Laboratory Equipment, Laboratory Procedures, Laboratory Testing, Chemistry, Safety Standards, Analytical Chemistry, Safety Assurance, Materials science, Product Testing, Personal protective equipment, Record Keeping, Product Development, Systems Of Measurement, Innovation
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Performance Tuning, Postman API Platform, Restful API, Application Programming Interface (API), Data Validation, Authentications, React.js, Authorization (Computing), PostgreSQL, Object-Relational Mapping, API Design, Model View Controller, Scalability, Application Frameworks, JSON, Full-Stack Web Development, Unit Testing, Web Development, Python Programming
Advanced · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Penetration Testing, Cyber Security Policies, Linux Commands, Cyber Security Assessment, Command-Line Interface, Cybersecurity, Cloud Computing, Linux, Risk Management Framework, Operating System Administration, Network Monitoring, Security Management, Operating Systems, Cyber Risk, Cloud Services, Threat Management, General Networking, Windows PowerShell, Cyber Governance, Unix Commands
Beginner · Specialization · 1 - 3 Months

Arizona State University
Skills you'll gain: Statistical Process Controls, Process Control, Quality Assurance, Semiconductors, Verification And Validation, Manufacturing Operations, Manufacturing Processes, Process Improvement, Process Analysis, Product Testing, Test Engineering, Thermal Management, Electronics Engineering, Electronics, Reliability, Performance Testing
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Blockchain, FinTech, Interoperability, Payment Systems, Financial Inclusion, Financial Systems, Cryptography, Digital Assets, Financial Regulation, Banking, Encryption, Computer Security, Governance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Unit Testing, Server Side, Javascript, Debugging, Back-End Web Development, File Systems, Development Testing, Web Applications, JSON
Intermediate · Course · 1 - 3 Months