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: Email Marketing, Customer Retention, Customer Relationship Building, E-Commerce, Strategic Marketing, Online Advertising, Performance Metric, Copywriting, Sales, Decision Making, Automation
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: API Design, API Gateway, Application Programming Interface (API), Software Documentation, Restful API, Server Side, Test Automation, Development Testing, Software Testing, Interactive Design, Software Design, Back-End Web Development, Test Case, Full-Stack Web Development, Collaboration, Debugging, Version Control
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Apple iOS, Apple Xcode, iOS Development, Core Data (Software), Secure Coding, Application Deployment, Scalability, Swift Programming, Performance Tuning, Application Security, Debugging, API Gateway, Application Performance Management, Application Programming Interface (API), Performance Testing, Encryption, JSON
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Penetration Testing, Cyber Security Assessment, Vulnerability Assessments, Data Security, Cybersecurity, Exploitation techniques, Test Tools, User Requirements Documents, Authorization (Computing), Technical Documentation, Computing Platforms, Requirements Analysis, Command-Line Interface, Technical Communication
Intermediate · Course · 1 - 3 Months

Jordan University of Science and Technology
Skills you'll gain: Immunology, Public Health and Disease Prevention, Laboratory Testing, Diagnostic Tests, Public Health, Pathology, Infectious Diseases, Physiology, General Medicine, Internal Medicine, Hematology, Microbiology, Medical Terminology, Cell Biology, Oncology, Molecular Biology
Beginner · Course · 1 - 3 Months

MathWorks
Skills you'll gain: Electrical Systems, Model Based Systems Engineering, Electric Power Systems, Climate Change Mitigation, Energy and Utilities, Environmental Issue
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Data Pipelines, Real Time Data, Data Processing, Jupyter, Google Cloud Platform, JSON, Application Programming Interface (API), SQL, Analytics
Advanced · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: VMware ESX Servers, Data Migration, Amazon Web Services, Virtual Machines, Cloud Infrastructure, Amazon Elastic Compute Cloud, Hybrid Cloud Computing, Cloud Management, AWS Identity and Access Management (IAM), Public Cloud, Cloud Computing Architecture, Application Performance Management, Verification And Validation, Application Deployment, System Implementation, Performance Tuning, Network Infrastructure
Beginner · Course · 1 - 4 Weeks

ISC2
Skills you'll gain: Business Continuity, Continuous Monitoring, Cloud Computing, Data Migration, Cloud Security, Security Requirements Analysis, Data Management, Disaster Recovery, Cloud Infrastructure, Cloud Services, Risk Management, Service Level Agreement, Governance, Vendor Management, Business Requirements, Employee Training
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Web Services, Serverless Computing, Data Migration, Cloud Engineering, Amazon Elastic Compute Cloud, Cloud Services, Cloud Computing Architecture, Servers, Cloud Platforms, Cloud Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, IT Security Architecture, Identity and Access Management, Continuous Monitoring, Network Security, Security Awareness, Information Systems Security, Security Information and Event Management (SIEM), Application Security, Disaster Recovery, Security Controls, Cloud Security, Security Strategy, Threat Detection, Cyber Governance, Risk Management Framework
Beginner · Course · 1 - 4 Weeks

JetBrains
Skills you'll gain: Generative AI Agents, Large Language Modeling, Software Development Tools, IntelliJ IDEA, LLM Application, Artificial Intelligence, Agentic systems, Artificial Intelligence and Machine Learning (AI/ML), Responsible AI, Software Development, Code Review, Integrated Development Environments, Generative AI, Computer Programming, Software Development Life Cycle
Beginner · Course · 1 - 3 Months