Reactive programming courses can help you learn asynchronous data streams, event-driven architecture, and the principles of reactive systems. You can build skills in handling real-time data, managing state changes, and implementing backpressure strategies. Many courses introduce tools like RxJava, Reactor, and Akka, that support building responsive applications and integrating with APIs. By exploring these topics, you’ll gain practical experience in creating applications that efficiently respond to user interactions and system events.

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Typography, Cascading Style Sheets (CSS), UI Components, Web Design, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, Browser Compatibility, User Interface (UI), Usability, Interaction Design, Hypertext Markup Language (HTML), Web Design and Development, Web Content Accessibility Guidelines, Front-End Web Development, Animations, Web Development, Web Development Tools
Intermediate · Specialization · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: Dashboard, Tableau Software, Data Visualization Software, Exploratory Data Analysis, SQL, Data Analysis, Data Manipulation
Advanced · Course · 1 - 3 Months

Edureka
Skills you'll gain: YAML, Infrastructure as Code (IaC), CI/CD, Kubernetes, Devops Tools, Docker (Software), Extensible Markup Language (XML), Data Structures, Data Validation, JSON, Containerization, Scripting, DevOps, Configuration Management, Debugging, System Configuration, Automation, Software Versioning, Version Control, User Provisioning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Jest (JavaScript Testing Framework), React.js, React Redux, Application Deployment, Software Testing, Web Development, JavaScript Frameworks, Software Architecture, Full-Stack Web Development, Application Development, Front-End Web Development, Real Time Data, Application Programming Interface (API), Responsive Web Design, Event-Driven Programming, Cascading Style Sheets (CSS), UI Components, Restful API, Authentications, Development Environment
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Import/Export, Data Visualization Software, Data Visualization, Interactive Data Visualization, Histogram, Data Transformation, Data Processing, Apache Kafka, JSON, MySQL, SQL
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Agile Project Management, Agile Methodology, Project Estimation, Sprint Planning, Scaled Agile Framework, Sprint Retrospectives, Cross-Functional Team Leadership, Backlogs, Kanban Principles, Team Leadership, User Story
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Game Design, Investments, Test Automation, Digital Assets, Investment Management, Development Testing, Cryptography, Program Development, Emerging Technologies, FinTech, Software Development, Web Development Tools, Asset Management, Asset Protection, Transaction Processing, Secure Coding, Application Deployment
Beginner · Course · 3 - 6 Months

Skills you'll gain: Debugging, Development Environment, Open Source Technology, Integrated Development Environments, Computer Programming Tools, Software Development, Software Development Tools, Artificial Intelligence, Generative AI
Intermediate · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Text Mining, Data Ethics, Data Mining, Customer Insights, Marketing Analytics, Unstructured Data, Marketing, Brand Awareness, Natural Language Processing, Predictive Analytics, Machine Learning, Data Quality
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Test Planning, Test Case, Software Testing, Functional Testing, Software Documentation, System Testing, Development Testing, Regression Testing, Code Review, Test Data, Issue Tracking, Quality Assurance, Technical Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Applications, Google App Engine, Application Deployment, Google Cloud Platform, Application Performance Management, Infrastructure as Code (IaC), Platform As A Service (PaaS), Kubernetes, Continuous Deployment, Development Environment, Performance Tuning, Containerization, Debugging, Serverless Computing, Virtual Machines, Computer Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, Application Programming Interface (API), Software Testing, JSON, Java, Data Validation, Test Automation, Test Case, Development Environment
Mixed · Course · 1 - 4 Weeks