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.

Coursera
Skills you'll gain: Apache Kafka, Real Time Data, Data Pipelines, Data Processing, Operational Databases, System Monitoring, Scalability, Performance Tuning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Commands, Linux, OS Process Management, Command-Line Interface, Unix Commands, User Accounts, Bash (Scripting Language), Shell Script, Linux Administration, Unix Shell, File Management, Remote Access Systems, Scripting, DevOps
Beginner · Course · 3 - 6 Months

Skills you'll gain: Cloud Computing Architecture, Public Cloud, Cloud Security, Data Import/Export, Load Balancing, Multi-Factor Authentication, Event Monitoring, Data Storage, MySQL, Key Management, Scalability
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Software Quality Assurance, Quality Assurance, Test Automation, Test Tools, Acceptance Testing, Agile Software Development, Test Case, Software Testing, Continuous Integration, User Acceptance Testing (UAT), Agile Methodology, User Story, Automation, Analysis, Collaboration
Intermediate · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Data Science, Data Processing, Applied Machine Learning, Machine Learning, Supervised Learning, Geographic Information Systems, Big Data, Data Visualization, Data Analysis, Data Integration, Amazon Web Services, Cloud Computing, Matlab, Predictive Modeling, Classification And Regression Tree (CART), Regression Analysis
Beginner · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Smart Goals, Emotional Intelligence, Positivity, Personal Development, Empathy, Social Skills, Self-Awareness, Professional Development, Resilience, Conflict Management, Team Building, Stress Management, Team Motivation, Psychology, Leadership, Team Management, Team Leadership, Decision Making
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Angular, Web Development Tools, JavaScript Frameworks, Development Environment, Data Management, TypeScript, Application Development, Application Performance Management, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Group Policy, Azure Active Directory, Active Directory, Microsoft Azure, Windows Servers, Hybrid Cloud Computing, Authentications, Identity and Access Management, Infrastructure As A Service (IaaS), Single Sign-On (SSO), User Accounts, Multi-Factor Authentication, Disaster Recovery, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Web Design, HTML and CSS, Web Content Accessibility Guidelines, User Interface (UI), Hypertext Markup Language (HTML), Front-End Web Development, User Interface and User Experience (UI/UX) Design, Javascript, Usability, Web Applications, Semantic Web, Data Validation
Beginner · Course · 1 - 3 Months
Skills you'll gain: ServiceNow, Information Technology Infrastructure Library, IT Service Management, Problem Management, Service Management, Information Technology Operations, Digital Transformation, Change Control, Configuration Management, Self Service Technologies, IT Management, Automation, Problem Solving, Design, Order Fulfillment
Beginner · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon Web Services, Containerization, Docker (Software), Kubernetes, Application Deployment, Cloud-Native Computing, CI/CD, Devops Tools, Application Servers, Scalability
Intermediate · Course · 1 - 4 Weeks

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Marketing Analytics, Strategic Partnership, Marketing, Key Performance Indicators (KPIs), Customer Engagement, Product Marketing, Marketing Strategy and Techniques, Return On Investment, Stakeholder Management, Branding, Digital Marketing, Brand Management, Advertising, Consumer Behaviour, Sales Process, Public Relations, Emotional Intelligence, Price Negotiation, Data Analysis, Creative Thinking
Beginner · Course · 1 - 4 Weeks