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.

Duke University
Skills you'll gain: Pandas (Python Package), MLOps (Machine Learning Operations), NumPy, Data Manipulation, Software Testing, Data Import/Export, Test Automation, Python Programming, Debugging, Data Structures, Machine Learning, Object Oriented Programming (OOP), Scripting, Program Development, Numerical Analysis, Application Programming Interface (API), Command-Line Interface
Intermediate · Course · 1 - 3 Months

MedCerts
Skills you'll gain: Information Management, Care Coordination, Health Care Administration, Data Ethics, Healthcare Ethics, Medical Coding, Data Storage, Interoperability
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Salesforce Development, Salesforce, CI/CD, Software Architecture, Solution Architecture, Systems Architecture, Code Review, Relational Databases, Integration Testing, Software Design, Software Design Patterns, Database Design, Debugging, Maintainability, Enterprise Architecture, IT Security Architecture, Security Controls, System Design and Implementation, Systems Integration, Scalability
Beginner · Course · 1 - 3 Months

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Performance Analysis, Sports Medicine, Athletic Training, Patient Evaluation, Exercise Science, Injury Prevention, Performance Reporting, Rehabilitation, Coaching, Load Balancing, Clinical Assessment, Decision Support Systems, Data Integration, Physiology, Global Positioning Systems
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Threat Modeling, Security Testing, Security Engineering, Cybersecurity, Data Security, Blockchain, Threat Detection, Cryptography, Network Security, Security Strategy, Exploit development, Vulnerability Assessments, Transaction Processing, Regulation and Legal Compliance
Advanced · Course · 1 - 3 Months

Skills you'll gain: ASP.NET, .NET Framework, Responsive Web Design, API Design, Restful API, Middleware, Data Migration, Configuration Management, Application Deployment, Data Validation, HTML and CSS, Database Application, Software Testing, C# (Programming Language), Postman API Platform, Full-Stack Web Development, Microsoft Azure, Web Applications, Web Development, Javascript and jQuery
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: Penetration Testing, Network Security, Threat Modeling, Mobile Security, Cloud Security, Public Key Infrastructure, Vulnerability Assessments, Cryptography, Security Controls, Threat Detection, Cybersecurity, Authorization (Computing), Security Awareness, Cloud Computing, Encryption, Malware Protection, Intrusion Detection and Prevention, Identity and Access Management, Cyber Attacks, Data Integrity
Beginner · Specialization · 3 - 6 Months
Duke University
Skills you'll gain: Data-Driven Decision-Making, Statistical Modeling, Predictive Modeling, Regression Analysis, R Programming, Data Analysis, Probability & Statistics, Statistical Hypothesis Testing, Statistical Inference, Statistical Analysis
Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Web Services, Cloud Computing, Public Cloud, Cloud Infrastructure, Amazon Elastic Compute Cloud, Cloud Services, Cloud Computing Architecture, Cloud Management, Serverless Computing, Cloud Security, Amazon S3, Databases, Data Storage, Network Architecture, Data Migration, Scalability
Beginner · Course · 3 - 6 Months

Skills you'll gain: Power BI, Microsoft Power Platform, Data Modeling, Data Storytelling, Business Intelligence, Interactive Data Visualization, Data Analysis Expressions (DAX), Dashboard, Data Transformation, Data Presentation, Data Visualization Software, Extract, Transform, Load, Data Manipulation, Data Cleansing
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Database Design, Software Design, Application Security, Vulnerability Assessments, Unified Modeling Language, Unit Testing, Threat Modeling, Usability Testing, User Interface and User Experience (UI/UX) Design, Open Web Application Security Project (OWASP), Software Architecture, Secure Coding, Software Design Patterns, Database Management, Software Engineering Tools, Security Software, Systems Design, Software Engineering, Software Development Life Cycle, Technical Design
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Sample Size Determination, Six Sigma Methodology, Process Improvement, Quality Improvement, Data-Driven Decision-Making, Lean Methodologies, Statistical Process Controls, Process Analysis, Lean Manufacturing, Continuous Improvement Process, Predictive Modeling, Quality Management, Statistical Analysis, Regression Analysis, Probability & Statistics, Microsoft Excel, Statistical Hypothesis Testing
Mixed · Course · 1 - 4 Weeks