Human Computer Interaction courses can help you learn user interface design, usability testing, interaction design principles, and accessibility standards. You can build skills in user research, prototyping, and evaluating user experiences across various platforms. Many courses introduce tools like Figma, Sketch, and Adobe XD, that support creating and testing interfaces, along with methods for gathering user feedback and iterating on designs.

Skills you'll gain: ASP.NET, Restful API, Web Development, Object-Relational Mapping, Web Applications, User Accounts, Data Integrity, Single Sign-On (SSO), .NET Framework, API Design, Application Programming Interface (API), Database Application, Authentications, Back-End Web Development, Performance Tuning, Authorization (Computing), Data Management, Relational Databases, Identity and Access Management, Model View Controller
★ 4.7 (38) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, LLM Application, OpenAI API, OpenAI, Hugging Face, Large Language Modeling, Agentic systems, Embeddings, AI Workflows, Data Processing, Vector Databases, Retrieval-Augmented Generation, Generative AI Agents, Application Development, Memory Management
★ 3.2 (21) · Intermediate · Course · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Data Import/Export, Web Scraping, Tidyverse (R Package), Data Wrangling, Data Integration, Data Manipulation, JSON, Data Transformation, Relational Databases, R (Software), Google Sheets, Unstructured Data, R Programming, Extensible Markup Language (XML), Spreadsheet Software, Databases, SQL, Data Structures, File I/O, Application Programming Interface (API)
★ 4.7 (51) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Identity and Access Management, Cloud Infrastructure, Cloud Computing, Infrastructure As A Service (IaaS), Cloud Platforms, Cloud Deployment, Virtual Machines, Kubernetes, Role-Based Access Control (RBAC), Virtual Networking, Cloud Management, Windows PowerShell, Application Deployment, Load Balancing, Network Architecture, Security Information and Event Management (SIEM), Command-Line Interface, Network Security, Scalability
★ 4.6 (19) · Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Linux Administration, Version Control, Linux, Git (Version Control System), Linux Servers, Linux Commands, Network Troubleshooting, Unix, Operating System Administration, Bash (Scripting Language), Systems Administration, Scripting, User Provisioning, Shell Script, User Accounts, Software Versioning, System Configuration, Unix Shell, Network Monitoring, Scripting Languages
★ 4.4 (22) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Continuous Integration, Test Automation, Authentications, CI/CD, Test Script Development, API Testing, Software Testing, Behavior-Driven Development, Event-Driven Programming, GitHub, Cascading Style Sheets (CSS)
★ 4.3 (21) · Intermediate · Course · 3 - 6 Months

Skills you'll gain: Unified Modeling Language, Visual Basic (Programming Language), Data Structures, Object Oriented Design, Microsoft Visual Studio, Program Development, Object Oriented Programming (OOP), Microsoft Development Tools, .NET Framework, Computer Programming
★ 4.5 (20) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Data Structures, Python Programming, Data Manipulation, Programming Principles, Quantum computing, Computer Programming, Software Installation, Computational Logic, Development Environment, Package and Software Management, Jupyter, System Configuration
★ 4.4 (19) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computational Logic, Theoretical Computer Science, Verification And Validation, Algorithms, Data Structures
★ 4.7 (26) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Test Automation, Test Script Development, Test Tools, Application Programming Interface (API), Restful API, Software Testing, Code Reusability, Configuration Management, Java Programming, Maintainability
★ 4.3 (31) · Intermediate · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), File I/O, Python Programming, Data Structures, Computer Programming, Software Engineering, Performance Tuning, Web Development, Performance Testing, Debugging, Web Development Tools
★ 4.7 (28) · Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Virtual Networking, Microsoft Azure, Network Troubleshooting, Virtual Private Networks (VPN), Network Architecture, Load Balancing, Network Administration, Virtual Machines, Security Controls, Network Security, Network Monitoring, Scalability, Hybrid Cloud Computing, Distributed Denial-Of-Service (DDoS) Attacks
★ 4.1 (22) · Intermediate · Course · 1 - 4 Weeks