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.
Johns Hopkins University
Skills you'll gain: Product Testing, Hazard Analysis, Analytical Chemistry, Environmental Regulations, Pharmacology, Biochemistry, Cell Cultures, Environmental Science, Biochemical Assays, Laboratory Research, Biostatistics, Bioinformatics, Molecular Biology, Data Mining
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Vibe coding, Generative AI Agents, AI Workflows, Agentic systems, Email Automation, AI Orchestration, Search Engine Optimization, Inside Sales, Web Analytics, Prompt Engineering, Development Environment, Application Deployment, Front-End Web Development, Debugging
Mixed · Course · 1 - 3 Months

Skills you'll gain: Unit Testing, Test Case, Application Deployment, Responsive Web Design, Test Driven Development (TDD), Continuous Deployment, Debugging, Maintainability, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, Software Testing, Code Review, Development Testing, Interviewing Skills, Web Development Tools, HTML and CSS, Web Development, Application Development, Software Documentation
Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Agentic systems, Collaborative Software, System Design and Implementation, Interoperability, Communication Systems, Network Protocols, Scalability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Robotic Process Automation, Data Manipulation, Email Automation, Web Scraping, User Interface (UI), Business Process Automation, Automation, UI Components, Test Automation, Context Management, Excel Macros, Data Cleansing, Network Protocols, Data Import/Export, Software Development Tools, Data Management, Unstructured Data, Data Flow Diagrams (DFDs), Application Deployment, Programming Principles
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Threat Modeling, Cyber Threat Intelligence, Cybersecurity, Malware Protection, Penetration Testing, Cyber Security Assessment, Threat Detection, Threat Management, Distributed Denial-Of-Service (DDoS) Attacks, Security Engineering, Cyber Attacks, Exploitation techniques, Mobile Security, Information Systems Security, Computer Security, Network Security, Vulnerability Assessments, Cloud Security, Persistence
Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: ASP.NET, Data Migration, Configuration Management, Data Validation, Database Application, Middleware, Debugging, Back-End Web Development, Database Management, Data Modeling, Restful API, Maintainability, Dependency Analysis, Performance Tuning, Software Design Patterns
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Data Storage Technologies, Statistics, Data Storage, Database Software, Statistical Hypothesis Testing, Data Manipulation
Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Virtual Reality, Video Game Development, Augmented and Virtual Reality (AR/VR), Game Design, Prototyping, Virtual Environment, Storyboarding, Ideation, Usability Testing, Interaction Design, User Experience Design, Data Ethics, Development Testing
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cloud Security, Security Information and Event Management (SIEM), Business Continuity Planning, System Monitoring, Network Security, Continuous Monitoring, Disaster Recovery, Incident Response, Cloud Computing, Zero Trust Network Access, Data Security, Firewall, Virtual Private Networks (VPN), Service Level Agreement, Vulnerability Management, Patch Management, Clinical Monitoring, Threat Detection, Configuration Management, Automation
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: User Story, User Interface (UI), Usability, Design Thinking, User Interface (UI) Design, User Experience Design, Mockups, User Experience, Wireframing, Usability Testing, User Centered Design, Artificial Intelligence, Responsible AI, Prototyping, User Research
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Data Storytelling, Data Analysis Expressions (DAX), Data Presentation, Power BI, Data Ethics, Dashboard, Data Modeling, Data Governance, Extract, Transform, Load, Data Visualization, Interactive Data Visualization, Business Intelligence, Data Visualization Software, Data Analysis, Statistical Analysis, Correlation Analysis, Data Architecture, Data Cleansing, Data Transformation, Database Design
Beginner · Professional Certificate · 3 - 6 Months