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.

Skills you'll gain: File I/O, Computer Programming, Programming Principles, Data Import/Export, Data Structures, Python Programming, Computer Science
★ 4.4 (92) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Process Capability, Sampling (Statistics), R (Software), Correlation Analysis, Statistical Inference, Probability Distribution, Statistical Visualization, R Programming, Statistical Process Controls, Statistical Hypothesis Testing, Statistical Methods, Data Science, Statistics, Data Analysis, Statistical Analysis, Statistical Software, Probability, Descriptive Statistics, Quality Improvement, Process Engineering
★ 4.4 (53) · Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Restful API, ASP.NET, Model View Controller, .NET Framework, JSON, Application Programming Interface (API), API Design, Application Frameworks, Web Services, Middleware, Back-End Web Development, Extensible Markup Language (XML)
★ 4 (68) · Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Core Data (Software), Apple iOS, iOS Development, JSON, Objective-C (Programming Language), OAuth, Authentications, Mobile Development, Single Sign-On (SSO), Web Services, Secure Coding, Data Store, Cryptographic Protocols, Application Security, Data Persistence
★ 4.5 (255) · Mixed · Course · 1 - 4 Weeks

Genentech
Skills you'll gain: Clinical Data Management, Clinical Trials, Clinical Research, Interactive Data Visualization, Case Report Forms, Drug Development, Data Presentation, R (Software), Pharmaceuticals, Data Visualization, Statistical Reporting, Dashboard, Data Modeling, R Programming, Data Manipulation, Statistical Programming, Data Science, Statistical Analysis, Data Preprocessing
★ 4.5 (17) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Statistical Hypothesis Testing, Statistical Analysis, Correlation Analysis, SAS (Software), Regression Analysis, Statistical Programming, Exploratory Data Analysis, Statistical Software, Statistical Methods, Probability & Statistics, Statistical Modeling, Statistical Inference, Sampling (Statistics), Analysis, Graphical Tools, Predictive Modeling, Model Evaluation
★ 4.7 (175) · Intermediate · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: NumPy, Python Programming, Artificial Intelligence, Programming Principles, Tensorflow, Data Structures, Development Environment, Software Installation, Data Manipulation, Package and Software Management
★ 4.6 (89) · Beginner · Course · 1 - 3 Months

Skills you'll gain: LangGraph, Generative AI Agents, AI Orchestration, LangChain, Agentic systems, AI Workflows, OpenAI API, Agentic Workflows, LLM Application, Artificial Intelligence, AI Integrations, User Interface (UI), Python Programming, Context Management, Development Environment
★ 4.5 (65) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Feature Engineering, Dimensionality Reduction, Data Integration, Data Preprocessing, Exploratory Data Analysis, Plot (Graphics), Matlab, Scientific Visualization, Data Processing, Descriptive Statistics, Data Cleansing, Data Wrangling, Data Manipulation, Histogram, Data Transformation, Data Science, Text Mining, Predictive Modeling, Unstructured Data, Image Analysis
★ 4.7 (351) · Intermediate · Course · 1 - 3 Months

Meta
Skills you'll gain: Restful API, SQL, React Native, Database Management, Databases, Application Programming Interface (API), API Design, Relational Databases, Data Persistence, Mobile Development, Data Storage Technologies, Data Management, Application Development, Authentications
★ 4.8 (67) · Intermediate · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Software Engineering, Code Reusability, Program Development, Video Game Development, Programming Principles, Software Development, Software Design, Computer Programming, Event-Driven Programming, Software Documentation, Software Testing, Computational Thinking, Game Design, Animations, Animation and Game Design
★ 4.6 (27) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Electronic Components, Electronic Systems, Electronics, Programming Principles, Electronic Hardware, Hardware Design, Display Devices, Robotics, Data Persistence, Computer Programming Tools, Integrated Development Environments, Computer Programming, Embedded Systems, Development Environment, Automation Engineering, Simulation and Simulation Software, Digital Communications, Data Storage
★ 4.8 (12) · Beginner · Course · 3 - 6 Months