Back end courses can help you learn server-side programming, database management, API development, and cloud computing. You can build skills in data modeling, performance optimization, and security practices. Many courses introduce tools like Node.js, Express, and SQL databases, along with methods for integrating third-party services and managing user authentication.

LearnKartS
Skills you'll gain: JUnit, File I/O, Unit Testing, Java Programming, Debugging, Java, Maintainability, Software Development, Secure Coding, Software Testing, Authentications, Data Import/Export, Cryptography, Eclipse (Software), Integrated Development Environments, Encryption, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Transformation, Power BI, Data-Driven Decision-Making, Data Processing, Data Integration, Data Cleansing, Data Manipulation, Data Preprocessing, Data Modeling, Data Visualization Software, Data Analysis, Pivot Tables And Charts, Analytics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Systems, Embedded Software, Electric Power Systems, Engineering Software, Power Electronics, Hardware Troubleshooting, Software Systems, Systems Architecture, Electrical Engineering, Systems Integration, Debugging, Control Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, PostgreSQL, Relational Databases, Java, Java Platform Enterprise Edition (J2EE), Database Development, Systems Development, Database Design, Databases, Application Design, Back-End Web Development, Web Applications, Business Logic, Secure Coding, Data Validation, Process Modeling, Payment Systems, Document Management, Authentications, Verification And Validation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Customer experience improvement, Customer Engagement, Personalized Service, Social Media Management, Social Media, Social Media Marketing, Customer Relationship Building, Event Marketing, Customer Inquiries, Marketing, Promotional Strategies, Marketing Strategies, Strategic Communication, Communication Strategies, Business Strategy
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Prompt Engineering, Prompt Patterns, Generative AI, Large Language Modeling, ChatGPT, Generative Model Architectures, Responsible AI, AI Security, OpenAI, AI Workflows, Model Evaluation, Natural Language Processing, Artificial Intelligence, Model Deployment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sustainable Business, Hotel Operations, Hospitality, Hospitality Management, Sustainable Development, Business Planning, Corporate Sustainability, Hotels and Accommodations, Sustainability Standards, Waste Minimization, Environmental Issue, Community Development, Market Opportunities, Environmental Resource Management, Community Outreach, Climate Change Mitigation, Stakeholder Engagement, Market Trend, Market Analysis, Strategic Decision-Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Brand Awareness, Market Research, Strategic Marketing, Branding, Brand Marketing, User Feedback, Brand Strategy, Marketing, Brand Management, Research, User Research
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Portfolio Risk, Portfolio Management, Risk Modeling, Financial Data, Risk Analysis, Investment Management, Return On Investment, Time Series Analysis and Forecasting, Financial Modeling, Investments, Object Oriented Programming (OOP), Statistical Analysis, General Finance, Correlation Analysis, Simulations, Regression Analysis, Financial Forecasting, Simulation and Simulation Software, Jupyter, Python Programming
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Selenium (Software), Test Automation, Software Testing, Test Script Development, Test Data, Browser Compatibility, Java, Cascading Style Sheets (CSS), Data Import/Export, Debugging, Maintainability
Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Kinesiology, Human Musculoskeletal System, Scientific Methods, Science and Research, Anthropology, Biology, Anatomy, 3D Assets, Research, Mechanics, Physiology, Laboratory Research, Human Development, Exercise Science, Taxonomy, Child Development, Life Sciences, Scientific Visualization, Childbirth, Obstetrics And Gynecology
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Visualization, Data Visualization Software, Plot (Graphics), Tableau Software, Color Theory, Data Integration, Data Literacy, Data Presentation, Data Import/Export, Business Analytics, Data Science, Marketing Analytics
Beginner · Course · 1 - 4 Weeks