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.

Vanderbilt University
Skills you'll gain: Prompt Engineering, Data Presentation, ChatGPT, Document Management, Artificial Intelligence, AI Enablement, Problem Solving, Data Analysis, Information Management, Creativity, Data Processing, Automation
Beginner · Course · 1 - 3 Months

Imperial College London
Skills you'll gain: Biostatistics, Statistical Analysis, R (Software), R Programming, Statistical Methods, Data Wrangling, Regression Analysis, Exploratory Data Analysis, Time Series Analysis and Forecasting, Logistic Regression, Probability & Statistics, Descriptive Statistics, Model Evaluation, Public Health
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Django (Web Framework), Object-Relational Mapping, SQL, Cloud Deployment, Bootstrap (Front-End Framework), Relational Databases, Database Management, Database Design, Full-Stack Web Development, Databases, Web Applications, Authentications, Model View Controller, Application Development, Data Modeling, Authorization (Computing), Responsive Web Design, Content Management
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Tidyverse (R Package), Clinical Data Management, Health Insurance Portability And Accountability Act (HIPAA) Compliance, R Programming, Medical Privacy, Google Cloud Platform, Data Ethics, Data Science, Health Informatics, Data Processing, Electronic Medical Record, SQL, Data Access
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Application Development, Program Development, Development Environment, Microsoft Visual Studio, Software Design Patterns
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Computer Programming, Data Persistence, Programming Principles, Python Programming, File Management, Computer Science
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Postman API Platform, Restful API, Authentications, Application Programming Interface (API), Scripting, JSON, Extensible Markup Language (XML), Network Protocols, YAML, Automation, Network Engineering, Python Programming
Intermediate · Course · 1 - 4 Weeks

Alberta Machine Intelligence Institute
Skills you'll gain: Feature Engineering, Data Preprocessing, Model Evaluation, Data Quality, Supervised Learning, Data Validation, Data Cleansing, Data Ethics, Applied Machine Learning, Machine Learning, Unsupervised Learning, Machine Learning Algorithms, Python Programming, Computer Programming, Linear Algebra, Statistical Analysis
Intermediate · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Swift Programming, Objective-C (Programming Language), iOS Development, Core Data (Software), Apple iOS, Video Game Development, Game Design, Model View Controller, JSON, User Interface (UI) Design, UI Components, Mobile Development, OAuth, Responsive Web Design, Prototyping, Animation and Game Design, Apple Xcode, Human Computer Interaction, UI/UX Strategy, Usability Testing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Robotic Process Automation, Data Manipulation, Email Automation, Web Scraping, User Interface (UI), Business Process Automation, Automation, UI Components, Test Automation, Context Management, Excel Macros, Data Cleansing, Network Protocols, Data Import/Export, Software Development Tools, Data Management, Unstructured Data, Data Flow Diagrams (DFDs), Application Deployment, Programming Principles
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Java Programming, File I/O, Object Oriented Programming (OOP), Application Frameworks, Debugging, Data Persistence, Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Model Context Protocol, Claude Code, Vibe coding, Microsoft Copilot, AI Workflows, Anthropic Claude, Tool Calling, GitHub, Web Development, Real Time Data, Debugging, AI Security, Artificial Intelligence and Machine Learning (AI/ML), Servers, Prompt Engineering, Application Development, Video Game Development, Agentic Workflows, Generative AI, Software Engineering
Beginner · Specialization · 3 - 6 Months