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: Penetration Testing, Exploitation techniques, Scenario Testing, Brute-force attacks, Cybersecurity, Vulnerability Assessments, Linux, Command-Line Interface, Cryptography, File Management, Microsoft Windows, Scripting, Virtual Machines
Intermediate · Course · 1 - 3 Months

NIIT
Skills you'll gain: React.js, Front-End Web Development, Systems Development Life Cycle, Application Development, User Interface and User Experience (UI/UX) Design, UI Components, User Flows, Unit Testing, Data Validation, Javascript
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Gemini, Unit Testing, Integrated Development Environments, Software Documentation, Google Cloud Platform, Code Review, Software Development Tools, Application Development, Maintainability, Debugging
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Brute-force attacks, General Networking, Network Administration, Network Security, Penetration Testing, Wireless Networks, Exploitation techniques, Linux, Vulnerability Scanning, Linux Commands, Encryption, Network Analysis, Command-Line Interface, Virtual Machines
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Full-Stack Web Development, Jest (JavaScript Testing Framework), Application Deployment, Unit Testing, JavaScript Frameworks, Data Structures, Back-End Web Development, Restful API, Application Programming Interface (API), Development Environment, Javascript, Front-End Web Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Large Language Modeling, Hugging Face, MLOps (Machine Learning Operations), OpenAI, Prompt Engineering, Model Deployment, AWS SageMaker, Extract, Transform, Load, Embeddings, Data Pipelines, CI/CD, Vector Databases, Model Evaluation
Beginner · Course · 1 - 3 Months

Skills you'll gain: AWS Kinesis, Amazon Web Services, Real Time Data, Extract, Transform, Load, Data Processing, Dashboard, Full-Stack Web Development, Mobile Development Tools, Event-Driven Programming, Business Intelligence, Data Visualization
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Role-Based Access Control (RBAC), TypeScript, Authentications, Server Side, Jest (JavaScript Testing Framework), Back-End Web Development, MongoDB, Object-Relational Mapping, Web Development Tools, Web Applications, Unit Testing, Web Development, Database Management, Secure Coding, Application Programming Interface (API), Middleware, NoSQL, Javascript and jQuery, Development Environment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Experience, User Experience Design, UI/UX Research, Usability Testing, User Research, UI/UX Strategy, A/B Testing, Design Research, Prioritization, Data Literacy, Usability, Product Improvement, Process Design, Business Priorities, Kanban Principles, Product Testing, Business Research, Creative Design, Statistical Hypothesis Testing, Business Strategy
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, Microbiology, Medical Terminology, Cell Biology, Oncology, Molecular Biology
Beginner · Course · 1 - 3 Months

Alibaba Cloud Academy
Skills you'll gain: Docker (Software), Containerization, Kubernetes, Terraform, Prometheus (Software), Application Deployment, DevOps, Performance Tuning, Performance Testing, Application Performance Management, Infrastructure as Code (IaC), Cloud Deployment, Cloud Management, System Monitoring
Intermediate · Course · 1 - 3 Months