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: JSON, Javascript, Ajax, Web Development Tools, Unit Testing, Development Testing, Event-Driven Programming, Hypertext Markup Language (HTML), Data Validation, Data Structures, Performance Tuning, Network Protocols
Beginner · Course · 1 - 3 Months
Skills you'll gain: Application Security, Open Web Application Security Project (OWASP), OAuth, Data Validation, Authentications, Back-End Web Development, Security Testing, Secure Coding, Web Applications, Authorization (Computing), Vulnerability Scanning, Cyber Attacks, Threat Modeling, Software Testing, Distributed Denial-Of-Service (DDoS) Attacks, Data Integrity, Server Side, Security Strategy
Intermediate · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Materials science, Failure Analysis, Semiconductors, Structural Analysis, Mechanical Engineering, Engineering, Chemistry, Laboratory Testing
Beginner · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Digital Assets, Financial Inclusion, Supply Chain, Governance, Supply Chain Management, Business Transformation, FinTech, Business Analysis, Market Opportunities, Competitive Analysis, Interoperability, Business Leadership, Strategic Partnership, Emerging Technologies, Strategic Leadership, Stakeholder Analysis, Logistics, Market Analysis, Case Studies
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: PHP (Scripting Language), Model View Controller, Restful API, Web Development, Object-Relational Mapping, Web Applications, Full-Stack Web Development, Development Environment, Software Testing, Back-End Web Development, Application Frameworks, Database Management, Application Security, Authentications, Authorization (Computing), Package and Software Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Software Documentation, Development Testing, Package and Software Management
Advanced · Course · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Cloud Services, Relational Databases, Databases, Cloud Storage, Analytics, Data Storage, Microsoft SQL Servers, Power BI, NoSQL, Cloud Computing, Data Warehousing, SQL, Test Planning, Test Tools
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Data Governance, Accounting, Data Management, Internal Controls, Internal Auditing, Control Objectives for Information and Related Technology (COBIT), Auditing, Financial Auditing, Fraud detection, Data Quality, Accounting Software, Data Integrity, Pandas (Python Package), Emerging Technologies, Data Analysis, Analytics, Automation, GitHub, Python Programming, Natural Language Processing
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Android Studio, Application Design, Application Development, Mobile Development, Prototyping, Program Development, Mockups, User Interface (UI) Design, Development Testing, Problem Management, Extensible Markup Language (XML)
Mixed · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Cloud Services, Cloud Solutions, Cloud Platforms, Cloud Computing, Public Cloud, Cloud Security, Network Security, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Software Engineering, Distributed Computing, Extract, Transform, Load, Google Cloud Platform, Big Data, Cloud Computing, Serverless Computing, Cloud Technologies, Data Pipelines, Amazon S3, Command-Line Interface, Continuous Integration, Python Programming, Data Governance, NumPy, Rust (Programming Language)
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Vulnerability Assessments, Application Security, Vulnerability Management, Event Monitoring, Secure Coding, Security Controls, Hardening, Data Integrity, Security Testing, System Monitoring, Cybersecurity, Patch Management, Threat Modeling, Authorization (Computing), Cryptography, Extensible Markup Language (XML), System Configuration, Server Side
Intermediate · Specialization · 3 - 6 Months