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: Python Programming, Programming Principles, Data Structures, Computer Programming, Computational Thinking, Web Development Tools, Web Development, Software Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Import/Export, Data Analysis, Data Visualization, Programming Principles, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: COBOL (Programming Language), Agile Methodology, Technical Support, Software Development Life Cycle, Program Development, Scrum (Software Development), Software Development, Software Quality Assurance, Quality Assurance, Code Review, Debugging, Software Documentation, Technical Documentation, Computer Programming
Beginner · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Cloud Computing, Information Technology, Cybersecurity, Machine Learning Algorithms, Critical Thinking, Simulations
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Unsupervised Learning, Dimensionality Reduction, Machine Learning Algorithms, Data Science, Applied Machine Learning, Machine Learning, Scikit Learn (Machine Learning Library), Python Programming, Algorithms, Linear Algebra, Exploratory Data Analysis, NumPy, Statistical Analysis
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Applied Mathematics, Graphing, Numerical Analysis, Python Programming, Advanced Mathematics, Mathematical Software, Mathematical Modeling, Derivatives, Programming Principles
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Android Development, Application Development, Android (Operating System), Android Studio, Mobile Development, Software Development Tools, Game Design, Computer Programming Tools, Development Environment, Internet Of Things, Embedded Software, Web Servers, Web Applications, USB, Ubuntu, Peripheral Devices, Operating Systems, Software Installation, Command-Line Interface
Mixed · Course · 1 - 3 Months
Skills you'll gain: Exploratory Data Analysis, Data Literacy, Data Storytelling, Data-Driven Decision-Making, Data Presentation, SAS (Software), Trend Analysis, Data Manipulation, Data Analysis, Data Quality, Analysis, Scatter Plots, Analytics, Data Visualization, Interactive Data Visualization, Technical Communication, Data Ethics, Data Visualization Software, Research, Data Cleansing
Beginner · Specialization · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: Matplotlib, Financial Data, Exploratory Data Analysis, Pandas (Python Package), Financial Analysis, Data Visualization Software, Statistical Analysis, Data Manipulation, NumPy, Seaborn, Data Analysis, Data Science, Data Transformation, Python Programming, Data Cleansing, Computer Programming
Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cryptography, Encryption, Public Key Cryptography Standards (PKCS), Python Programming, Data Security
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: SQL, Google Cloud Platform, Database Development, Database Management, Data Import/Export, Query Languages, Data Warehousing
Beginner · Project · Less Than 2 Hours

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Mobile Development, Android Studio, Application Development, User Interface (UI) Design, Application Lifecycle Management, User Interface (UI), Data Storage, Databases, SQL
Intermediate · Course · 1 - 3 Months