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.

Skills you'll gain: Database Administration, Database Architecture and Administration, Database Management, Apache Airflow, Operational Databases, PostgreSQL, MySQL, Data Warehousing, Data Pipelines, Extract, Transform, Load, Database Design, SQL, Data Architecture, Performance Tuning, Disaster Recovery, Data Security, Data Import/Export, Data Transformation
Advanced · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: JUnit, File I/O, Java Programming, Object Oriented Programming (OOP), Java, Unit Testing, Program Development, Maintainability, Software Development, Secure Coding, Software Testing, Programming Principles, Computer Programming, Test Case, Application Development, Authentications, Application Security, Application Design, Software Design Patterns, Debugging
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Test Script Development, Software Development Life Cycle, Google Cloud Platform, Development Testing, Application Development, Test Case, Query Languages, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Process Mapping, Six Sigma Methodology, Lean Six Sigma, Organizational Change, Lean Methodologies, Statistical Hypothesis Testing, Organizational Leadership, Quality Management, Process Improvement, Correlation Analysis, Project Scoping, Data-Driven Decision-Making, Root Cause Analysis, Statistical Analysis, Continuous Improvement Process, Sampling (Statistics), Statistical Methods, Process Analysis, Project Management, Data Literacy
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Android Studio, Android Development, Android (Operating System), Mobile Development, Application Development, User Interface (UI), User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, Human Computer Interaction, Interaction Design, Usability, Development Environment, Development Testing, Debugging
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Sampling (Statistics), R (Software), Statistical Inference, Probability Distribution, R Programming, Statistical Hypothesis Testing, Descriptive Statistics, Statistical Methods, Data Science, Statistics, Data Analysis, Statistical Analysis, Probability, Data Manipulation, Histogram
Build toward a degree
Beginner · Course · 1 - 3 Months

Novartis
Skills you'll gain: Drug Development, Pharmaceuticals, Pre-Clinical Development, Pharmacology, Laboratory Testing, Biochemical Assays, Clinical Research, Pharmaceutical Terminology, Verification And Validation
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI Agents, Java, Agentic systems, AI Workflows, Generative AI, LLM Application, Tool Calling, OpenAI API, Application Development, Prompt Engineering, Debugging
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Water Quality, Laboratory Testing, Chemistry, Product Testing, Chemical Engineering, Biochemistry, Process Control, Analytical Testing, Materials science, Physics
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Search Engine Marketing, Pay Per Click Advertising, Marketing Analytics, Search Engine Optimization, Web Analytics, Web Analytics and SEO, Online Advertising, Model Evaluation, Digital Marketing, Apache Hadoop, Data-Driven Decision-Making, Digital Advertising, Return On Investment, A/B Testing, Machine Learning Methods, Advertising, Analytics, Social Media Strategy, Marketing Automation, Predictive Modeling
Beginner · Specialization · 3 - 6 Months

Simplilearn
Skills you'll gain: Email Marketing, Target Audience, Lead Generation, Marketing Automation, Newsletters, Campaign Management, Driving engagement, Direct Marketing, Promotional Strategies, Digital Marketing, Content Marketing, Customer Relationship Management (CRM) Software, Customer Engagement, Sales, Automation, Law, Regulation, and Compliance
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Microsoft Copilot, Microsoft Visual Studio, GitHub, Code Review, Integrated Development Environments, Program Development, Software Documentation, AI Enablement, Computer Programming Tools, Web Development Tools, Development Testing, Debugging
Beginner · Course · 1 - 4 Weeks