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.

Board Infinity
Skills you'll gain: React.js, Responsive Web Design, Front-End Web Development, Bootstrap (Front-End Framework), JavaScript Frameworks, Web Design and Development, UI Components, Programming Principles, Javascript, HTML and CSS, Web Applications, Event-Driven Programming, Web Development, User Interface (UI), Maintainability
★ 4.5 (11) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Unit Testing, Angular, Software Testing, Development Testing, Test Case, Frontend Performance, Software Architecture, Software Design, Application Programming Interface (API), Restful API, Frontend Integration, Performance Tuning, Enterprise Architecture, Service Oriented Architecture, Authentications, Authorization (Computing), Scalability, TypeScript, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: React Native, Mobile Development, iOS Development, Apple iOS, Android Development, Mobile Development Tools, UI Components, Cross Platform Development, React Redux, Application Development, React.js, Application Frameworks, Development Environment, Debugging, Context Management, Software Development, Data Persistence, Command-Line Interface, Data Validation
★ 4.9 (22) · Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scalability, Scala Programming, Distributed Computing, Dataflow, Event-Driven Programming, System Design and Implementation, Systems Architecture, Microservices, Software Architecture, Data Pipelines, Software Design Patterns, Cloud Computing, Software Design, Application Frameworks
★ 4.5 (6) · Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Go (Programming Language), Algorithms, OS Process Management, System Programming, Theoretical Computer Science, Operating Systems, Computer Architecture, Data Sharing
★ 4.7 (799) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Secure Coding, Frontend Performance
Intermediate · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Data Structures, C (Programming Language), C and C++, Programming Principles, Data Management, Memory Management, Algorithms, Computer Programming, File I/O, File Management, Other Programming Languages, Development Environment
★ 4.5 (24) · Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Event-Driven Programming, Distributed Computing, Java Programming, Java, Software Architecture, Systems Architecture, OS Process Management, Scala Programming, Server Side, Algorithms, Communication Systems
★ 4.6 (506) · Intermediate · Course · 1 - 3 Months

Lund University
Skills you'll gain: Real-Time Operating Systems, Programming Principles, Control Systems, Event-Driven Programming, Robotics, Computer Programming, Program Development, Robotic Process Automation, Automation, Other Programming Languages, Real Time Data, Applied Mathematics
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Prompt Engineering, Prompt Patterns, Generative AI Agents, Tool Calling, Agentic Workflows, Agentic systems, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, Human Computer Interaction, OpenAI, Artificial Intelligence
★ 4.6 (88) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Go (Programming Language), Data Structures, Programming Principles, System Programming, Development Environment, Computational Logic, Program Development
Beginner · Course · 1 - 3 Months

Skills you'll gain: React.js, Bootstrap (Front-End Framework), Web Applications, Frontend Integration, JavaScript Frameworks, UI Components, Full-Stack Web Development, Authentications, Front-End Web Development, ASP.NET, HTML and CSS, Cascading Style Sheets (CSS), Application Programming Interface (API), Authorization (Computing), Secure Coding, Web Design and Development, User Interface (UI), Javascript, Web Development Tools, Microsoft Azure
Intermediate · Specialization · 3 - 6 Months