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.

LearnQuest
Skills you'll gain: Spring Framework, Java Programming, Java, File I/O, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Frameworks, Code Reusability, Object Oriented Design, Data Structures, File Management
★ 4.7 (224) · Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Azure, Serverless Computing, Cloud Development, Microsoft Power Automate/Flow, Event-Driven Programming, Cloud-Based Integration, Business Process Automation, Application Programming Interface (API), Webhook Security, GitHub
★ 4.4 (137) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Exploratory Data Analysis, NumPy, Data Visualization, Data Analysis, Plot (Graphics), Seaborn, Matplotlib, Statistical Visualization, Cloud Computing, Jupyter, Dimensionality Reduction, Data Science, Unsupervised Learning, Scikit Learn (Machine Learning Library), Machine Learning Methods, Numerical Analysis, Python Programming, Data Manipulation
★ 4.6 (298) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Electrical Power, Electric Power Systems, Electrical Systems, Control Systems, Electrical Substation, Electrical Equipment, Energy and Utilities, Electrical Safety, Plant Operations and Management, High Voltage, Machine Controls, Applied Mathematics, Power Electronics, Automation Engineering, Basic Electrical Systems, Electrical Engineering, Process Control, Mathematical Modeling, Matlab, Three-Phase
★ 4.5 (300) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Code Reusability, Python Programming, Computer Programming, Programming Principles, Software Development
★ 4.6 (119) · Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Structures, Python Programming, Programming Principles, Computer Programming, Computational Logic, Software Engineering, Performance Tuning, Web Development, Performance Testing, Web Development Tools, Debugging, Software Development
★ 4.6 (74) · Beginner · Specialization · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Simulation and Simulation Software, Simulations, Mathematical Modeling, Electrical Engineering, Power Electronics, Electronic Components, Electric Power Systems, Matlab, Model Evaluation, Model Optimization, Electrical Systems, Engineering Calculations, Laboratory Testing, Mathematical Software, Laboratory Research, Estimation
★ 4.7 (554) · Intermediate · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Blockchain, Test Driven Development (TDD), Development Testing, Test Script Development, Application Development, Application Design, Application Frameworks, Integrated Development Environments, Web Development Tools, Software Architecture, Web Applications, Development Environment, Frontend Integration, Application Deployment, Application Programming Interface (API), Software Development Tools, Interoperability, Command-Line Interface
★ 4.5 (1.2K) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Jest (JavaScript Testing Framework), Mobile Development, Web Development Tools, Android Development, React.js, Javascript, Unit Testing, Test Script Development, Node.JS, Package and Software Management, Programming Principles, Object Oriented Programming (OOP), Event-Driven Programming, Functional Design
★ 4.1 (134) · Beginner · Course · 1 - 3 Months

University of Toronto
Skills you'll gain: Apple iOS, iOS Development, Swift Programming, Mobile Development, Application Design, Application Development, User Interface (UI), UI Components, Human Computer Interaction, Interactive Design, Interaction Design, Graphical Tools, Graphic and Visual Design, Data Persistence, Animations, Computer Graphics, Persistence, Network Model
★ 4.1 (269) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Hibernate (Java), Object-Relational Mapping, CI/CD, Spring Boot, Restful API, Java Programming, Integration Testing, Continuous Integration, Database Development, Cloud Deployment, Application Security, Java, Containerization, Spring Framework, SQL, NoSQL, Docker (Software), Kubernetes, Test Driven Development (TDD), Object Oriented Design
★ 4.5 (51) · Beginner · Specialization · 1 - 3 Months

University of California San Diego
Skills you'll gain: Growth Mindedness, Technical Communication, Adaptability, Algorithms, Overcoming Obstacles, Software Engineering, Verbal Communication Skills, Communication Strategies, Social Skills, Interpersonal Communications, Communication, Problem Solving, Complex Problem Solving, Data Structures
★ 4.6 (555) · Intermediate · Course · 1 - 3 Months