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.

Snowflake
Skills you'll gain: Data Engineering, Data Pipelines, Database Management, Data Manipulation, Databases, Data Transformation, Extract, Transform, Load, Data Warehousing, Change Control, DevOps, Cloud Development, SQL, Data Integration, CI/CD, Application Development, Artificial Intelligence and Machine Learning (AI/ML), Role-Based Access Control (RBAC), Software Development Tools, Stored Procedure, Data Analysis
Beginner · Professional Certificate · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Scientific Visualization, NumPy, Data Visualization, Debugging, Matplotlib, Numerical Analysis, Engineering Calculations, Integrated Development Environments, Computational Thinking, Engineering Analysis, Programming Principles, Jupyter, Data Analysis, Computer Programming
Beginner · Course · 1 - 4 Weeks

Akamai Technologies, Inc.
Skills you'll gain: Endpoint Security, Database Systems, Computer Security Incident Management, Security Management, Ubuntu, Routing Protocols, Database Design, Application Development, Network Architecture, Linux Commands, TCP/IP, Operating Systems, Database Theory, Web Design and Development, Cascading Style Sheets (CSS), Web Development, Data Structures, Python Programming, Data Analysis, Software Development
Beginner · Professional Certificate · 3 - 6 Months

Peking University
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Program Development, Programming Principles, Data Structures, Computer Programming, Maintainability, Object Oriented Design, C and C++, UI Components, User Interface (UI), Test Driven Development (TDD), Application Programming Interface (API), Software Engineering, Event-Driven Programming, Application Development, Debugging, Algorithms, File I/O
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Simulations, Mathematical Modeling, Electrical Engineering, Electronic Systems, Matlab, Electrical Systems, Engineering Calculations, Laboratory Testing, Basic Electrical Systems, Estimation
Intermediate · Course · 1 - 3 Months

National Taiwan University
Skills you'll gain: Computational Logic, Artificial Intelligence, Simulations, Computational Thinking, Programming Principles, Theoretical Computer Science, Algorithms, Machine Learning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Mobile Development, Mobile Development Tools, iOS Development, Integrated Development Environments, Development Environment, Apple iOS, Android Studio, Computer Programming Tools, Application Development, Swift Programming, Test Tools, React Native, Apple Xcode, Application Frameworks, Cross Platform Development, Software Testing, Cloud Hosting, Data Management
Beginner · 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, Computer Programming Tools, Data Manipulation
Beginner · Course · 1 - 3 Months

Accenture
Skills you'll gain: Data Literacy, Computer Literacy, Microsoft Excel, digital literacy, Data Analysis, Data-Driven Decision-Making, Emerging Technologies, Data Collection, Computer Security Awareness Training, Digital Communications, Computer Programming, Productivity Software, Web Development, Information Technology, Business Technologies, Javascript, Python Programming, Blockchain, Cloud Computing, Computer Hardware
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Vibe coding, Model Context Protocol, Context Management, AI Workflows, Software Installation, Agentic Workflows, Code Review, System Configuration, Computer Programming Tools, Debugging, Web Development Tools, Software Development, User Interface (UI), Web Development
Intermediate · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Information Architecture, Persona (User Experience), UI/UX Strategy, Web Design, User Experience, Wireframing, User Research, User Centered Design, Mockups, Usability Testing, Requirements Analysis, Target Audience, Agile Methodology
Intermediate · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: Android Development, Android Studio, Mobile Development, Software Design, User Interface (UI) Design, Java Programming, Data Access, Software Architecture, Databases, OS Process Management, Content Management, Service Management
Beginner · Course · 1 - 4 Weeks