Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

Skills you'll gain: TCP/IP, Network Architecture, Network Routers, Networking Hardware, General Networking, Network Security, Dynamic Host Configuration Protocol (DHCP), Network Infrastructure, Network Troubleshooting, Computer Networking, Network Protocols, Network Switches, Virtual Local Area Network (VLAN), Scalability
Beginner · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Big Data, Analytics, Data Processing, Data Analysis, Data Strategy, Data Storage, Data Management, Data Infrastructure, Unstructured Data, Real Time Data
Mixed · Course · 1 - 4 Weeks

University of California, Santa Cruz
Skills you'll gain: Bayesian Statistics, Technical Communication, Data Presentation, R Programming, Statistical Analysis, Statistical Modeling, Data Analysis, Time Series Analysis and Forecasting, Statistical Inference, Sampling (Statistics), Model Evaluation, Probability Distribution
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Project Documentation, Agile Methodology, Agile Project Management, Project Management, Project Management Life Cycle, Project Planning, Project Management Institute (PMI) Methodology, Sprint Planning, Backlogs, Stakeholder Management, Team Oriented, Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Identity and Access Management, Cloud Services, Microsoft Azure, Collaborative Software, Microsoft Teams, Security Controls, Endpoint Security, Cloud Solutions, Zero Trust Network Access, Microsoft Office, Cloud Computing, Threat Management, Information Privacy
Beginner · Course · 3 - 6 Months

Skills you'll gain: Data Centers, Ansible, Open Shortest Path First (OSPF), Network Switches, Computing Platforms, Virtual Networking, Virtual Local Area Network (VLAN), Network Infrastructure, Network Engineering, Border Gateway Protocol, Infrastructure Security, Network Monitoring, Data Storage Technologies, Automation, Event Monitoring, Configuration Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Application Deployment, Kubernetes, Network Troubleshooting, Performance Tuning, Continuous Deployment, Network Performance Management, Network Routing, Network Security, Network Protocols, Load Balancing, Scalability
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Development Environment, Program Development, Web Development Tools, JavaScript Frameworks, Javascript, Web Components, Front-End Web Development, Web Development
Beginner · Guided Project · Less Than 2 Hours
Skills you'll gain: Team Building, Management Training And Development, Teamwork, Organizational Leadership, Trustworthiness, People Management, Collaboration, Meeting Facilitation, Leadership, Cross-Functional Collaboration, Professional Development, Empathy, Conflict Management, Goal Setting, Communication, Adaptability
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Electronics, Systems Of Measurement, Digital Signal Processing, Data Processing, Data Cleansing, Statistical Methods, NumPy, Real Time Data, Open Source Technology, Mathematical Modeling
Mixed · Course · 1 - 4 Weeks
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Functional Design, Software Design Patterns, Unit Testing, Data Structures, Simulations
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Project Management Software, Project Planning, Timelines, Project Management, Workflow Management, Organizational Skills, Collaborative Software, Team Management, Prioritization
Beginner · Guided Project · Less Than 2 Hours