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.

EC-Council
Skills you'll gain: Network Security, Incident Response, Computer Security Incident Management, Cryptography, Penetration Testing, Vulnerability Management, Cybersecurity, Application Security, Security Information and Event Management (SIEM), Cyber Security Policies, Threat Detection, Network Monitoring, Cloud Security, Vulnerability Assessments, Malware Protection, Mobile Security, Identity and Access Management, Internet Of Things, Risk Analysis, Web Applications
Beginner · Professional Certificate · 3 - 6 Months

UiPath
Skills you'll gain: User Interface (UI), UI Components, Test Automation, Human Computer Interaction, Automation, User Interface (UI) Design, Robotic Process Automation, Excel Macros, Business Process Automation, Desktop Support
Beginner · Course · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), Unit Testing, TypeScript, Software Testing, Test Driven Development (TDD), Code Coverage, Testability, Test Case, Javascript, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Azure DevOps, Node.JS, CI/CD, DevOps, Microsoft Azure, Microservices, Docker (Software), Containerization, Software Testing, Debugging, Cloud Development, Application Deployment, Scripting, Version Control, YAML, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, Selenium (Software), Test Tools, Test Case, Software Testing, Test Execution Engine, Test Data, Apache Maven, Automation, Application Frameworks, Java, Extensible Markup Language (XML), Data Import/Export
Beginner · Course · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Data Collection, Data Visualization, Data-Driven Decision-Making, Microsoft Excel, Project Management, Data Analysis, Compensation and Benefits, Google Sheets, Timelines, Data Cleansing, Agile Methodology, Employee Surveys, Focus Group
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Power BI, Data-Driven Decision-Making, Data Analysis, Extract, Transform, Load, Data Literacy, Business Intelligence, Data Processing, Data Collection, Business Analytics, Data Transformation, Data Visualization Software
Beginner · Course · 1 - 4 Weeks
LearnQuest
Skills you'll gain: Data Warehousing, Data Analysis, Cloud Computing, Data Architecture, Big Data, Cloud Services, Analytics, Analysis, Data Storage, Cloud Computing Architecture, Cloud Infrastructure, Cloud Solutions, Scalability, Data Processing, Extract, Transform, Load, Cloud Platforms, Public Cloud, Software As A Service, Statistical Analysis, Data Strategy
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Continuous Integration, CI/CD, Application Deployment, Node.JS, Version Control, Test Automation, Software Development Tools, Git (Version Control System), Software Development, GitHub, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Web Content Accessibility Guidelines, Usability, Usability Testing, Web Design, Web Development Tools, Test Tools, Web Development, Customer Service
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Dataflow, Data Pipelines, Data Processing, Real Time Data, Extract, Transform, Load, Data Transformation, Jupyter, Google Cloud Platform, JSON, SQL
Advanced · Course · 1 - 3 Months

Peking University
Skills you'll gain: Software Testing, Software Engineering, Object Oriented Design, Unified Modeling Language, Software Development Tools, System Requirements, Requirements Analysis, Agile Methodology, Software Development Methodologies, Software Development Life Cycle, Functional Requirement, Software Quality Assurance, Software Development, Systems Analysis
Intermediate · Course · 1 - 3 Months