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.

O.P. Jindal Global University
Skills you'll gain: Big Data, Apache Spark, PySpark, Apache Hadoop, Apache Hive, Databases, NoSQL, Data Mining, Data Warehousing, Real Time Data, Cloud Computing, Data Processing, Query Languages, Distributed Computing, Applied Machine Learning, Scripting Languages
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Javascript, Data Persistence, Scripting, Scripting Languages, Data Storage, Web Development, Functional Design, Data Structures, Business Logic, Game Design, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Universidad de los Andes
Skills you'll gain: TypeScript, Javascript, Scripting Languages, Hypertext Markup Language (HTML), Web Development Tools, Object Oriented Programming (OOP)
Intermediate · Guided Project · Less Than 2 Hours

Starweaver
Skills you'll gain: Prompt Engineering, Generative AI Agents, Retrieval-Augmented Generation, Generative Model Architectures, CrewAI, AI Orchestration, Vector Databases, AI Workflows, Model Deployment, AI Personalization, Generative AI, Transfer Learning, Kubernetes, Enterprise Application Management, ChatGPT, Agentic systems, MLOps (Machine Learning Operations), Python Programming, System Monitoring, Engineering
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Apache Kafka, Real Time Data, Data Pipelines, Data Processing, Operational Databases, System Monitoring, Scalability, Performance Tuning, Configuration Management
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Debugging, HTML and CSS, Web Development, Mobile Development, Database Application, Responsive Web Design, Real Time Data, User Interface (UI) Design, Secure Coding, Javascript, Data Storage Technologies
Intermediate · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: SQL, Data Analysis, Seaborn, Exploratory Data Analysis, Analytics, Data Visualization, Data Visualization Software, Matplotlib, Data Storage, Pandas (Python Package), Big Data, Data Science, Data Management, Data Manipulation, Data Cleansing, NumPy
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Import/Export, Scripting, R Programming, Data Processing, Statistical Programming, Data Structures
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Event-Driven Programming, Web Development Tools, HTML and CSS, Web Development, Javascript, Web Applications, Web Design and Development, Cascading Style Sheets (CSS), Programming Principles
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Recurrent Neural Networks (RNNs), Natural Language Processing, Embeddings, Hugging Face, Deep Learning, Large Language Modeling, Transfer Learning, Convolutional Neural Networks, Text Mining, Semantic Web, Tensorflow, PyTorch (Machine Learning Library), Artificial Neural Networks, Python Programming, Cryptography, Classification Algorithms, Probability Distribution, Machine Learning Algorithms, Data Processing, Algorithms
Intermediate · Specialization · 3 - 6 Months

National Academy of Sports Medicine
Skills you'll gain: Health And Wellness Coaching, Coaching, Exercise Science, Health Assessment, Creative Problem-Solving, Nutrition and Diet, Cognitive flexibility, Goal Setting, Overcoming Obstacles
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Programming Interface (API), Simple Object Access Protocol (SOAP), Application Deployment, Development Environment, Hibernate (Java), OAuth, Back-End Web Development, Eclipse (Software)
Beginner · Course · 1 - 4 Weeks