First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.

Skills you'll gain: Pseudocode, Programming Principles, Program Development, Software Visualization, Computational Logic, Process Modeling, Diagram Design, Computer Programming Tools, Code Reusability, Computer Programming, Maintainability, Software Documentation, Software Installation
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Classification Algorithms, Java Programming, Data Preprocessing, Machine Learning Software, Model Training, Model Deployment, Model Evaluation, Decision Tree Learning, Logistic Regression
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Data Processing, R Programming, Data Manipulation, Data Structures, Statistical Programming, Data Analysis, Computational Logic, Data Analysis Software, Data Preprocessing, Software Installation, Data Science, Development Environment, Computer Programming, Program Development, Computer Programming Tools, Software Development
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Browser Compatibility, Performance Testing, Security Testing, Integration Testing, System Testing, API Testing, Software Testing, User Acceptance Testing (UAT), Performance Stress Testing, Acceptance Testing, Test Tools, Application Security, Test Automation, Responsive Web Design, Web Applications, Docker (Software), User Interface (UI), Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Business Correspondence, Business Writing, Intercultural Competence, Cultural Sensitivity, Business Communication, Target Audience, Writing, Professionalism, Communication, Request For Quotation (RFQ), Procurement, Concision, Internal Communications, Stakeholder Communications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, JUnit, Integration Testing, Restful API, Development Testing, Software Testing, Test Tools, Web Services, Hibernate (Java), Business Logic
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: QuickBooks (Accounting Software), Expense Reports, Expense Management, Accounting Software, Bookkeeping, Accounting Records, Accounting Systems, Record Keeping, Accounting, Small Business Accounting, Accounts Payable, General Ledger, Transaction Processing, Financial Accounting, General Accounting, Cash Receipts, Financial Data, Financial Reporting, Data Entry
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Unit Testing, Continuous Integration, Software Testing, Test Case, .NET Framework, CI/CD, Development Testing, Test Data, Test Automation, Development Environment, Continuous Deployment
★ 3.5 (6) · Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Bioinformatics, Epidemiology, Infectious Diseases, Molecular, Cellular, and Microbiology, Life Sciences, Computational Thinking, Molecular Biology, Biology, Science and Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Spreadsheet Software, Data Visualization, Plot (Graphics), Data Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Memory Management, C and C++, Scalability, Performance Tuning, C++ (Programming Language), Microarchitecture, Computer Architecture, Performance Stress Testing, Cross Platform Development, Hardware Architecture, Computing Platforms, Program Development, Application Frameworks, Software Installation, Development Environment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Local Area Network (VLAN), Network Security, Network Architecture, Routing Protocols, Virtual Private Networks (VPN), General Networking, Virtual Networking, Wireless Networks, Network Switches, Network Administration, Authentications, Network Troubleshooting, Network Routing, Open Shortest Path First (OSPF), Firewall, Networking Hardware, Authorization (Computing), TCP/IP, Computer Networking, Infrastructure Security
Beginner · Specialization · 3 - 6 Months