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: Restful API, API Design, Application Deployment, Authentications, Cloud Deployment, User Accounts, Debugging, Operational Databases, Back-End Web Development, Software Testing, Software Development, Database Development, Continuous Integration
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React.js, Routing Protocols, UI Components, JavaScript Frameworks, Frontend Performance, Front-End Web Development, Performance Tuning, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Event-Driven Programming, User Experience Design, User Interface (UI), Jest (JavaScript Testing Framework), Web Development Tools, Interaction Design, Debugging, Javascript, Application Performance Management, Web Frameworks, Data Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: API Testing, Test Automation, Test Script Development, Application Programming Interface (API), Test Case, Restful API, Software Testing, Configuration Management, Java Programming
Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Test Driven Development (TDD), Unit Testing, Code Review, Maintainability, Testability, Software Testing, Debugging, Software Development, Python Programming
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Descriptive Statistics, Statistical Visualization, Data Transformation, Data Cleansing, Statistical Analysis, Regression Analysis, Probability, Probability Distribution, Sampling (Statistics), Box Plots, Histogram, R Programming, Statistical Methods, Scatter Plots, Microsoft Excel, Probability & Statistics, Statistics, Data Import/Export, Data Analysis
Beginner · Specialization · 3 - 6 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

Universidad de los Andes
Skills you'll gain: Penetration Testing, Threat Detection, Vulnerability Assessments, Threat Modeling, Cybersecurity, Vulnerability Management, Exploitation techniques, Risk Management Framework, Cyber Attacks, Security Testing, Information Technology, Security Requirements Analysis, Cyber Risk, Human Factors (Security), Application Servers, Web Servers
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Preventative Care, Patient Education And Counseling, Pharmacology, Contraindication, Bloodborne Pathogens, Drug Interaction, Health Promotion, Primary Care, Health Disparities, Medication Therapy Management, Clinical Pharmacy, Public Health, Community Health, Patient Advocacy, Clinical Assessment, Epidemiology, Patient Communication, Diagnostic Tests
Beginner · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Closing (Sales), Cold Calling, Customer Analysis, Sales Process, Target Market, Market Analysis, Marketing, Marketing Strategies, Competitive Analysis, Marketing Planning, Business Marketing, Sales, Growth Strategies, Market Research, Sales Prospecting, Business Development, New Business Development, A/B Testing, Entrepreneurship, Digital Marketing
Intermediate · Course · 1 - 3 Months

IIT Bombay
Skills you'll gain: Design Thinking, User Research, Prototyping, Human Centered Design, Product Design, Sustainable Business, Innovation, Brainstorming, Creative Thinking, Empathy, User Feedback, Product Development, Customer experience improvement, Case Studies, Collaboration
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Prompt Engineering, Vibe coding, Debugging, Large Language Modeling, LLM Application, AI Security, Application Programming Interface (API), Responsible AI, Development Environment, AI Enablement, Integrated Development Environments, API Testing, Application Development, Application Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cross-Channel Marketing, Content Marketing, Marketing Analytics, Data Ethics, Marketing Effectiveness, Data-Driven Decision-Making, Marketing Strategies, Personalized Service, Marketing Automation, Content Strategy, Adobe Express, AI Personalization, Advertising Campaigns, Driving engagement, Social Media, Emerging Technologies, Market Research, Trend Analysis
Beginner · Course · 1 - 4 Weeks