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.

University of Colorado Boulder
Skills you'll gain: Photo/Video Production and Technology, Promotional Materials, Marketing Materials, Video Production, Videography, Web Presence, Promotional Strategies, Product Promotion, Writing, Photography, Layout Design, Copywriting, Business Writing, Music, Content Creation, Branding, Brand Management, Target Audience, Design Elements And Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: System Monitoring, Data Quality, Performance Tuning, Apache Spark, Data Validation, Data Pipelines, Query Languages, Debugging, Data Transformation, Anomaly Detection, PySpark, Performance Analysis, Extract, Transform, Load, Failure Analysis, SQL, Data Architecture, Data Processing, Benchmarking, Root Cause Analysis, Distributed Computing
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Patterns, Prompt Engineering Tools, Salesforce, AI Integrations, AI Orchestration, Agentic Workflows, Artificial Intelligence, Generative AI Agents, Agentic systems, Customer Relationship Management (CRM) Software
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Vulnerability Management, Vulnerability Assessments, Cyber Security Assessment, Open Web Application Security Project (OWASP), Security Testing, Exploitation techniques, Application Security, Patch Management, Cyber Threat Intelligence, Cyber Engineering, Cyber Governance, Risk Management Framework, Linux Administration, Dashboard Creation, Ethical Standards And Conduct, Linux, Linux Commands, Linux Servers
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: z/OS, Mainframe Computing, Computer Architecture, Mainframe Technologies, System Programming, Computational Logic, Programming Principles, Computer Programming, Computer Science, Job Control Language (JCL)
Intermediate · Course · 1 - 3 Months

Harvard Business Review
Skills you'll gain: Crisis Management, Leadership and Management, Organizational Change, Strategic Leadership, Leadership, Resilience, Team Leadership, Organizational Leadership, Dealing With Ambiguity, Change Management, Adaptability, Team Performance Management, Overcoming Objections, Compassion, Service Recovery, Internal Communications, Performance Improvement, Innovation, Process Improvement, Strategic Communication
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Memory Management, Programming Principles, Software Engineering, Debugging, Program Development, Data Structures, IntelliJ IDEA, Application Development, Software Development, Virtual Machines
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Web Applications, Web Development, Web Development Tools, HTML and CSS, JavaScript Frameworks, OAuth, UI Components, Frontend Integration, Front-End Web Development, Authentications, React.js, Development Environment, Javascript, Software Installation, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Design, Web Design and Development, Graphic and Visual Design, Animations, Typography, Color Theory
Beginner · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Google Ads, Advertising, Online Advertising, Growth Strategies, Advertising Campaigns, Video Production, Copywriting, Performance marketing, Digital Advertising, Campaign Management, Drive Engagement, Target Audience
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Google Workspace, Lightweight Directory Access Protocols, Active Directory, Gmail, User Provisioning, User Accounts, Group Policy, Collaborative Software, Automation, Document Management, Identity and Access Management, Enterprise Application Management, Role-Based Access Control (RBAC), File Management, Configuration Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, AI Security, DevSecOps, Security Testing, Continuous Monitoring, CI/CD, MITRE ATT&CK Framework, DevOps, System Monitoring, Application Security, Continuous Integration, Test Script Development, Endpoint Security, Scripting, Unit Testing, Integration Testing, Data Validation
Intermediate · Course · 1 - 4 Weeks