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.

Skills you'll gain: Git (Version Control System), Selenium (Software), Version Control, GitHub, Jenkins, Continuous Integration, CI/CD, Test Automation, Test Script Development, Web Development Tools, Browser Compatibility, Test Execution Engine, Test Data, Java, File I/O, Data Access
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Invoicing, Billing & Invoicing, Accounting Records, Billing, Excel Formulas, Spreadsheet Software, Tax Compliance, Payment Processing and Collection, Tax Management, Microsoft Excel, Regulation and Legal Compliance, Sales Tax, Regulatory Requirements, Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Javascript, JSON, Event-Driven Programming, Web Design and Development, Web Development, Programming Principles, Web Applications, Computational Logic, Data Structures, Program Development, Application Deployment, Cascading Style Sheets (CSS), Context Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: OpenAI API, LLM Application, OpenAI, Generative AI Agents, ChatGPT, Cost Benefit Analysis, Tool Calling, Generative AI, Cloud API, AI Integrations, Application Programming Interface (API), Development Environment, Business Logic, Prompt Engineering, Scalability, Business Analysis, Business Solutions, Scripting, TypeScript, Node.JS
Intermediate · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Networking Hardware, General Networking, Network Infrastructure, Local Area Networks, OSI Models, Network Protocols, Network Support, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), TCP/IP, Network Architecture, Computer Networking, Network Planning And Design, Wireless Networks, Network Security, Network Switches, Virtual Local Area Network (VLAN)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, Responsible AI, Microsoft Azure, MLOps (Machine Learning Operations), Data Management, Model Optimization, Cloud Management, Model Training, Cloud Deployment, Data Store, Data Strategy, Applied Machine Learning, Model Evaluation, Scalability, Data Preprocessing, Machine Learning, Feature Engineering, Machine Learning Algorithms
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Patient Communication, Nursing and Patient Care, Nursing Basics, Care Coordination, Nursing Care, Caregiving, Patient Advocacy, Basic Patient Care, Direct Patient Care, Clinical Supervision, Patient Safety, Patient Observation, Nursing Homes, Healthcare Industry Knowledge, Trend Analysis
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Algebra, Applied Mathematics, Graphing, Mathematical Modeling, Advanced Mathematics, Calculus, Predictive Modeling
Beginner · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: User Interface (UI), User Interface (UI) Design, Responsive Web Design, User Interface and User Experience (UI/UX) Design, User Experience Design, Digital Design, Web Design, User Experience, Motion Graphics, Adobe XD, Interactive Design, No-Code Development, Graphic and Visual Design, Layout Design, Prototyping, Graphic Design, Design Elements And Principles, Augmented and Virtual Reality (AR/VR), Style Guides, Digital Publishing
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Google Cloud Platform, Kubernetes, Google App Engine, Cloud Storage, Load Balancing, Cloud-Native Computing, Cloud Services, Cloud Infrastructure, Cloud Computing, Infrastructure As A Service (IaaS), Containerization, Data Storage Technologies, Data Storage, Virtual Machines, Cloud Deployment, Performance Tuning, Cloud Platforms, Cloud Solutions, Cloud Computing Architecture, DevOps
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Deepseek, DeepSeek API, Hugging Face, Large Language Modeling, LLM Application, AI Personalization, ChatGPT, Deep Learning, Open Source Technology, AI literacy, Model Deployment, AI Integrations, Applied Machine Learning, Application Programming Interface (API), Business Process Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: GitHub, Git (Version Control System), Devops Tools, Version Control, DevOps, Amazon Web Services, Collaborative Software, Software Versioning, Linux, Code Review
Beginner · Course · 1 - 3 Months