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: PostgreSQL, Relational Databases, SQL, Database Management Systems, Node.JS, Database Management, Data Import/Export, Data Processing, Extract, Transform, Load
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), Data Structures, Package and Software Management, Maintainability, Algorithms, Software Testing, Software Design Patterns
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, CI/CD, Model View Controller, ASP.NET, Cloud Infrastructure, Continuous Deployment, Cloud Development, Load Balancing, OAuth, Continuous Integration, Continuous Delivery, Cloud Computing, Cloud Applications, Application Deployment, Cloud Computing Architecture, Cloud Platforms, Web Applications, Web Development, Microservices, Secure Coding
Intermediate · Specialization · 3 - 6 Months
Coursera
Skills you'll gain: Deepseek, Responsible AI, LLM Application, Generative Model Architectures, AI Product Strategy, Application Deployment, Data Ethics, Case Studies, Prompt Engineering, Automation, Integration Testing, Process Optimization, Program Evaluation, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: User Story, Agile Product Development, Agile Methodology, Design Thinking, User Research, Product Development, User Centered Design, Interviewing Skills, Usability Testing, Innovation, Team Oriented, Persona Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Performance Management, Network Monitoring, Performance Tuning, Network Troubleshooting, Virtual Private Networks (VPN), Load Balancing, Performance Testing, Network Administration, TCP/IP, Network Engineering, Google Cloud Platform, VPN Clients, Network Analysis, Virtual Machines
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Spring Framework, Cloud-Native Computing, Software Architecture, Microservices, Software Design Patterns, Event-Driven Programming, Java Programming, Restful API, Performance Tuning, MongoDB, Back-End Web Development, Application Programming Interface (API), Web Applications, Scalability, Real Time Data, Resilience, Integration Testing, Performance Management, Debugging
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Systems Architecture, Software Architecture, Embedded Systems, Verification And Validation, Software Design, System Design and Implementation, Software Technical Review, Performance Testing, Computer Vision, Linux, Requirements Analysis, Debugging
Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: .NET Framework, Maintainability, Unit Testing, Test Case, Integration Testing, Test Driven Development (TDD), Software Testing, Microsoft Visual Studio
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Energy and Utilities, Electrical Systems, Electric Power Systems, Electrical Equipment, Power Electronics, Network Planning And Design, System Requirements, Interoperability
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Statistical Analysis, Sampling (Statistics), Statistical Methods, Microsoft Excel, Probability & Statistics, Data Analysis, Regression Analysis, Probability Distribution
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React Native, Mobile Development, iOS Development, Apple iOS, Android Development, UI Components, Cross Platform Development, React Redux, React.js, Application Frameworks, Cascading Style Sheets (CSS), Development Environment, Responsive Web Design, Debugging, Software Development, Data Storage Technologies, Data Validation
Intermediate · Course · 1 - 3 Months