Operating system courses can help you learn process management, memory allocation, file systems, and user interfaces. You can build skills in troubleshooting system errors, optimizing performance, and implementing security protocols. Many courses introduce tools like Linux, Windows, and virtualization software, illustrating how these skills are applied in real-world environments.

Cisco Learning and Certifications
Skills you'll gain: Network Troubleshooting, Network Switches, Data Centers, Virtual Networking, Network Infrastructure, Network Architecture, Network Planning And Design, Local Area Networks, Command-Line Interface, Network Protocols, Virtualization, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Test Automation, CI/CD, Test Script Development, Unit Testing, Continuous Integration, Application Programming Interface (API), DevOps, Devops Tools, Software Testing, IT Automation, Maintainability, Python Programming, Software Quality (SQA/SQC), Package and Software Management, Automation, Release Management, Authentications, GitHub, Software Versioning
Intermediate · Course · 1 - 3 Months

University of Florida
Skills you'll gain: Sports Medicine, Coaching, Athletic Training, Pediatrics, Exercise Science, Physiology, Kinesiology, Child Development, Human Musculoskeletal System, Working With Children, Anatomy, Training Programs, Injury Prevention, Coordination, Planning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Web Services, Email Automation, Scripting, Automation, Python Programming, Restful API, IT Automation, Application Programming Interface (API), JSON, System Monitoring
Beginner · Course · 1 - 3 Months

Skills you'll gain: Mainframe Computing, COBOL (Programming Language), Systems Development Life Cycle, Software Development Life Cycle, Mainframe Technologies, z/OS, Unit Testing, Systems Analysis, Job Control Language (JCL), IBM DB2, Systems Development, Agile Software Development, Debugging, Pseudocode, Program Development, Software Development Methodologies, Virtualization, Agile Methodology, Software Development, File I/O
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: QuickBooks (Accounting Software), Reconciliation, Month End Closing, Transaction Processing, Accruals, Accounting Software, Depreciation, Accrual Accounting, Bookkeeping, Accounting, General Accounting, Accounting Records, Standard Accounting Practices, Cash Handling, Small Business Accounting, Data Entry
Beginner · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Prompt Engineering, Code Review, Prompt Patterns, LLM Application, Vibe coding, Generative AI, Generative AI Agents, Large Language Modeling, AI Integrations, AI literacy, AI Workflows, Continuous Integration, Software Documentation, Development Testing, GitHub, Verification And Validation, Software Technical Review, Program Development, YAML, Release Management
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Tidyverse (R Package), Clinical Data Management, Extract, Transform, Load, Data Modeling, Clinical Research, R (Software), Health Insurance Portability And Accountability Act (HIPAA) Compliance, Medical Privacy, Data Manipulation, Predictive Modeling, Database Design, Data Mapping, Clinical Informatics, Google Cloud Platform, Data Quality, Natural Language Processing, grep, Informatics, Text Mining, R Programming
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: File Management, Remote Access Systems, Public Key Infrastructure, Software-Defined Networking, Microsoft Windows, Windows Servers, Network Troubleshooting, Microsoft Servers, Virtual Private Networks (VPN), Hardening, Computer Networking, Virtual Networking, Key Management, Active Directory, Firewall, File Transfer Protocol (FTP), Network Administration, Server Administration, Systems Administration, Administration
Beginner · Course · 1 - 3 Months

Skills you'll gain: Decision Intelligence, Responsible AI, Apache Kafka, Data Ethics, Operations Research, Data Pipelines, Model Deployment, Apache Spark, Real Time Data, Revenue Management, Market Dynamics, Supply Chain Planning, Supply Chain, Logistics, Compliance Management, Information Privacy, People Analytics, Regulatory Compliance, General Data Protection Regulation (GDPR), Python Programming
Intermediate · Course · 3 - 6 Months

LearnKartS
Skills you'll gain: Prioritization, Negotiation, Conflict Management, Team Collaboration, Empathy & Emotional Intelligence, Teamwork, Workplace inclusivity, Diversity and Inclusion, Stress Management, Diversity Training, Communication, Diversity Equity and Inclusion Initiatives, Team Management, Team Leadership, Productivity, Courage, Ethical Standards And Conduct, Workplace Bullying Intervention, Professionalism, Strategic Prioritization
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Extract, Transform, Load, Data Pipelines, Apache Airflow, Spatial Data Analysis, GIS Software, Geospatial Information and Technology, Geographic Information Systems, Data Transformation, PostgreSQL, System Monitoring, Continuous Monitoring, Python Programming
Beginner · Course · 1 - 4 Weeks