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.

Duke University
Skills you'll gain: Web Scraping, MySQL, SQL, JSON, Scripting, Data Manipulation, Data Structures, Query Languages, Database Management, Databases, Data Import/Export, Data Storage Technologies, Spatial Analysis, Python Programming
Intermediate · Course · 1 - 4 Weeks

The University of Edinburgh
Skills you'll gain: Software Engineering, Programming Principles, Software Development, Computer Programming, Software Documentation, Software Testing, Computational Thinking, Game Design, Animations
Mixed · Course · 1 - 3 Months

Skills you'll gain: Debugging, Java Programming, Java, Programming Principles, Computer Programming, Computer Science, Data Structures, Data Storage
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Eclipse (Software), Java, Java Programming, Functional Design
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Pandas (Python Package), Data Manipulation, Data Analysis, NumPy, Python Programming
Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: WordPress, Search Engine Optimization, Blogs, Web Analytics, Web Content, Keyword Research, Information Architecture, Content Management, Marketing, Analytics, Web Design, Web Development
Advanced · Guided Project · Less Than 2 Hours

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, File Systems, Cloud Computing, Operating Systems, Transaction Processing, Network Security, Data Centers, Authorization (Computing), Apache Hadoop, Data Store, Authentications, Cryptography, NoSQL, Algorithms
Mixed · Course · 1 - 3 Months

Skills you'll gain: LangChain, Tool Calling, LLM Application, Agentic systems, Generative AI Agents, Artificial Intelligence and Machine Learning (AI/ML), Application Development, Software Development
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Database Systems, Relational Databases, Database Management, SQL, Databases, Database Design, Database Architecture and Administration, Information Systems, MySQL, Data Modeling, Transaction Processing, Information Systems Security, Performance Tuning, Conceptual Design
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Apache Hadoop, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Programming Principles
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Algorithms, Computer Hardware, Cryptography, Python Programming, Computer Programming, Computational Thinking, Emerging Technologies, Technical Documentation, Theoretical Computer Science, Linear Algebra, Simulations
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Angular, JavaScript Frameworks, Unit Testing, Ajax, Cloud Applications, Web Applications, Front-End Web Development, Web Development, Javascript, Application Design, Model View Controller, Hypertext Markup Language (HTML), UI Components, Software Design Patterns
Intermediate · Course · 1 - 3 Months