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 Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Statistical Visualization, Correlation Analysis, Data Visualization, Statistical Software, Statistical Analysis, Analytics, R (Software), Data Analysis, Engineering Management, Descriptive Statistics, Probability & Statistics, Variance Analysis, Regression Analysis, Statistical Inference
Build toward a degree
Intermediate · Course · 1 - 3 Months

Minnesota State University, Mankato
Skills you'll gain: Research, Usability Testing, Usability, Research Methodologies, User Research, Writing and Editing, User Feedback, Report Writing, Web Content Accessibility Guidelines, User Experience Design, Prompt Engineering, Persona (User Experience), User Experience, Analysis
Beginner · Course · 1 - 4 Weeks

Universidad de los Andes
Skills you'll gain: Document Management, Data Sharing, Digital Publishing, File Management, Data Maintenance, User Interface and User Experience (UI/UX) Design, Interoperability, Image Quality
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Regression Analysis, Statistical Hypothesis Testing, Statistical Analysis, Probability & Statistics, Statistical Methods, Probability Distribution, Data Analysis, Markov Model, Data Science, Statistics, Statistical Inference, Probability, R Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Application Programming Interface (API), Authentications, Software Testing, JSON, Security Testing, Authorization (Computing), Test Case, Scenario Testing, Java
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Network Security, Virtual Local Area Network (VLAN), Network Architecture, Network Routers, Local Area Networks, General Networking, Authentications, Network Switches
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Continuous Integration, Sprint Planning, Kaizen Methodology, Process Improvement, Backlogs, Agile Product Development, Unit Testing, Scalability, Performance Metric, Integration Testing, Development Testing, Organizational Change, Project Management, User Story, Git (Version Control System), Key Performance Indicators (KPIs), Business Reporting, Application Security, Prioritization, Dependency Analysis
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Selenium (Software), Test Automation, Software Testing, Javascript, Browser Compatibility, Scripting, Automation, Web Development Tools, Cascading Style Sheets (CSS), Debugging, File Management, Software Installation, System Configuration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Systems Analysis, Database Design, Business Process Modeling, Process Flow Diagrams, System Testing, Process Mapping, Functional Requirement, Application Deployment, Process Analysis, Business Analysis, Requirements Elicitation, Requirements Analysis, Development Testing, Data Management, System Design and Implementation, Software Design Documents, Stakeholder Management, Project Management, Data Visualization, Stakeholder Engagement
Advanced · Course · 1 - 3 Months

Skills you'll gain: Secure Coding, Application Security, Open Web Application Security Project (OWASP), Security Engineering, Cybersecurity, Security Requirements Analysis, Security Testing, Vulnerability Assessments, Code Review, Software Design, Encryption, Vulnerability Management, Data Security, Cryptography, Continuous Monitoring, Authentications, Development Testing, System Monitoring, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Secure Coding, Distributed Denial-Of-Service (DDoS) Attacks, Application Security, Security Testing, Authorization (Computing), Authentications, Data Validation, Encryption, Security Software, Data Security, Vulnerability Scanning, Security Controls, Role-Based Access Control (RBAC), Verification And Validation, Database Application, Security Awareness, Cybersecurity, User Accounts, Configuration Management, Web Development Tools
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: OpenAI, Large Language Modeling, Generative AI, ChatGPT, Prompt Engineering, LLM Application, File Management, Application Programming Interface (API), Application Development, Artificial Intelligence and Machine Learning (AI/ML), Python Programming, Development Environment, Version Control
Beginner · Course · 1 - 4 Weeks