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.

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Restful API, Web Services, Hypertext Markup Language (HTML), HTML and CSS, Java Platform Enterprise Edition (J2EE), Software Design, Java, Extensible Markup Language (XML), Application Programming Interface (API), API Design, Object Oriented Design, Software Design Patterns, Software Architecture, Web Design, Web Design and Development, Web Applications, Front-End Web Development, Web Development, Command-Line Interface
★ 4.2 (32) · Beginner · Specialization · 1 - 3 Months

University of Virginia
Skills you'll gain: Financial Statements, Financial Accounting, Balance Sheet, Financial Reporting, Financial Statement Analysis, Accounting, Annual Reports, General Accounting, Accruals, Accrual Accounting, Income Statement, Financial Analysis, General Ledger, Generally Accepted Accounting Principles (GAAP), Bookkeeping, Accounting Records, Cash Flows
★ 4.8 (2.9K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Order Fulfillment, Online Advertising, E-Commerce, Order Delivery, Order Processing, Order Management, Google Ads, Digital Advertising, General Sales Practices, Customer experience improvement, Market Research, Marketing, Retail Management, Advertising Campaigns, Sales, Retail Store Operations, Shipping and Receiving, Marketing Strategies, Market Trend, Campaign Management
★ 4.8 (2K) · Beginner · Course · 1 - 4 Weeks

University of Rochester
Skills you'll gain: Music History, Music, World Music, Social Studies, World History, Electronic Media, Social Impact
★ 4.8 (1.2K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Bootstrap (Front-End Framework), Debugging, UI Components, Web Development Tools, Front-End Web Development, Web Design, Semantic Web, Hypertext Markup Language (HTML), Browser Compatibility, Web Content Accessibility Guidelines, Web Analytics and SEO, User Interface (UI), Software Engineering Tools, Development Testing, Data Validation, Javascript, Animations
★ 4.7 (1.9K) · Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Capital Budgeting, Cash Flows, Fiscal Management, Finance, Financial Analysis, Cash Flow Forecasting, Business Valuation, Return On Investment, Financial Management, Corporate Finance, General Finance, Case Studies, Investment Management, Financial Market, Risk Analysis, Financial Accounting
★ 4.8 (2.8K) · Beginner · Course · 1 - 3 Months

Nanyang Technological University, Singapore
Skills you'll gain: Criminal Investigation and Forensics, Chemistry, Investigation, Biochemistry, Laboratory Testing, Laboratory Research, Pharmacology, Science and Research, Laboratory Procedures, Molecular Biology
★ 4.9 (2.8K) · Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: File I/O, Object Oriented Design, Java Programming, Object Oriented Programming (OOP), Data Structures, Java, Cryptography, Software Engineering, Computer Programming, Code Reusability, Algorithms, Encryption, Maintainability, Data Store, Program Development, Web Analytics and SEO, Data Import/Export, Web Servers, Server Side
★ 4.6 (3.2K) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Electrical Power, Electric Power Systems, Energy and Utilities, Electrical Systems, Basic Electrical Systems, Market Dynamics, Operating Cost, Plant Operations and Management, Environmental Regulations, Regulatory Compliance, Regulatory Requirements, Dispatching
★ 4.8 (1.6K) · Beginner · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Version Control, Unix Commands, Git (Version Control System), GitHub, Linux Commands, Unix, Software Versioning, Command-Line Interface, Linux, Collaborative Software, File Management, Software Development Tools, Software Development, Web Development
★ 4.6 (3.8K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Feature Engineering, Statistical Methods, Data Preprocessing, Statistical Inference, Statistical Hypothesis Testing, Data Processing, Applied Machine Learning, Data Access, Statistics, Statistical Analysis, Data Analysis, Data Cleansing, Data Manipulation, Data Science, Data Wrangling, Machine Learning, Probability & Statistics, Data Import/Export, Data Transformation
★ 4.6 (2.6K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Frontend Integration, Web Applications, Web Design and Development, API Design, User Interface (UI), Databases, Secure Coding, GitHub, Dashboard Creation, Data Validation
★ 4.6 (51) · Beginner · Specialization · 3 - 6 Months