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: Blockchain, Secure Coding, Penetration Testing, Front-End Web Development, Application Development, Security Testing, Web Development Tools, Application Security, Event Monitoring, Development Environment, Exploit development, Frontend Integration, Web Development, Software Development Tools, Cyber Security Assessment, Payment Systems, Transaction Processing, Authorization (Computing), Token Optimization, Role-Based Access Control (RBAC)
Beginner · Specialization · 3 - 6 Months
Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Electrophysiology, Cell Biology, Physiology, Immunology, Biochemistry, Pathology, Endocrinology, Pharmacology, Molecular, Cellular, and Microbiology, Biology, Molecular Biology, Drug Development, Oncology
Beginner · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Vector Databases, LLM Application, User Interface (UI), Embeddings, Large Language Modeling, UI Components, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: TikTok, Content Creation, Video Editing, Video Production, Social Media Content, Social Media, Social Media Marketing, Algorithms, Driving engagement, Target Audience, Business Marketing, Customer Engagement, Culture, User Accounts, Demography
Beginner · Course · 1 - 4 Weeks

CVS Health
Skills you'll gain: De-escalation Techniques, Greeting Customers, Cross Selling, Retail Sales, Customer Service, Selling Techniques, Upselling, Conflict Management, Product Knowledge, Retail Store Operations, Customer Relationship Building, Transaction Processing, Customer Engagement, Professionalism, Company, Product, and Service Knowledge, Empathy, Social Media, Communication, Time Management
Beginner · Course · 1 - 4 Weeks

Anthropic
Skills you'll gain: Claude Code, Anthropic Claude, Command-Line Interface, Tool Calling, Model Context Protocol, LLM Application, Software Development Tools, GitHub, Context Management, Code Review, Software Development, Generative AI Agents, Automation, Software Engineering
Mixed · Course · 1 - 4 Weeks

Interactive Brokers
Skills you'll gain: Risk Analysis, Financial Trading, Securities Trading, Investments, Financial Market, Tax, Financial Regulations, Capital Markets, Investment Management, Financial Analysis, Risk Mitigation, Financial Industry Regulatory Authorities, Market Liquidity, Credit Risk, Income Tax, Market Dynamics, Tax Laws, Due Diligence
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Tensorflow, Model Training, Supervised Learning, Model Optimization, Artificial Neural Networks, Regression Analysis, Applied Machine Learning, Statistical Machine Learning, Machine Learning Algorithms, Deep Learning, Image Analysis, Machine Learning, Random Forest Algorithm, AI Workflows, Decision Tree Learning, Natural Language Processing, Scikit Learn (Machine Learning Library), Data Science, Python Programming
Advanced · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Negotiation, Contract Negotiation, Trustworthiness, Conflict Management, Relationship Building, Composure, Interpersonal Communications, Emotional Intelligence, Rapport Building, Communication Strategies, Empathy & Emotional Intelligence, Influencing, De-escalation Techniques, Business Ethics, Stress Management, Active Listening
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Competitive Analysis, Market Opportunities, Strategic Thinking, Business Strategy, New Business Development, Market Analysis, Business Analysis Tools, Business Analysis, Ideation, Entrepreneurship, Business Modeling, Analysis, Innovation, Business Research, Growth Strategies
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Administration, Network Troubleshooting, System Configuration, TCP/IP, Computer Networking, Local Area Networks, General Networking, Virtual Environment, Servers, Networking Hardware, Network Engineering, Simulations, Configuration Management, Information Technology, Verification And Validation
Intermediate · Guided Project · Less Than 2 Hours

University of London
Skills you'll gain: Cryptography, Cryptographic Protocols, Application Security, Cybersecurity, Data Security, Encryption, Vulnerability Assessments, Information Systems Security, Key Management, Infrastructure Security, Public Key Infrastructure, Public Key Cryptography Standards (PKCS), Authentications, Mobile Security, Data Integrity
Build toward a degree
Beginner · Course · 1 - 4 Weeks