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.

Ball State University
Skills you'll gain: Statistical Methods, Probability, Data Science, Probability & Statistics, Statistical Analysis, Probability Distribution, Statistical Modeling, Bayesian Statistics, Statistical Inference, Sampling (Statistics), R Programming, Statistical Visualization
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Web Applications, SQL, Database Application, Data Access, Go (Programming Language), Database Management, Relational Databases, Web Development, Back-End Web Development, Secure Coding, Application Security
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Agile Software Development, Agile Project Management, Agile Methodology, Scrum (Software Development), Kanban Principles, Software Development Methodologies, Project Estimation, Sprint Planning, Lean Methodologies, Estimation, Project Coordination, Backlogs, Systems Development Life Cycle, Sprint Retrospectives, Project Management, Workflow Management, Software Development, User Story, Continuous Improvement Process, Cross-Functional Collaboration
Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Kotlin, Cross Platform Development, Android Jetpack, Mobile Development, Android Development, Back-End Web Development, UI Components, User Interface (UI), Business Logic, Server Side, Middleware
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, Power BI, Microsoft Azure, NoSQL, Dashboard, Databases, Database Architecture and Administration, Data Integration, Data Visualization Software, SQL, Database Management Systems, Data Storage, Data Modeling, Data Warehousing, Cloud Storage, Infrastructure As A Service (IaaS), Platform As A Service (PaaS), Firewall
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Google Gemini, Software Development Tools, Software Engineering Tools, Human Machine Interfaces
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unsupervised Learning, Predictive Modeling, Supervised Learning, Applied Machine Learning, Predictive Analytics, Random Forest Algorithm, Text Mining, Natural Language Processing, Machine Learning Algorithms, Artificial Intelligence, Computational Logic, Python Programming, Scikit Learn (Machine Learning Library), Data Science, Data Processing, Unstructured Data, Algorithms
Mixed · Course · 1 - 4 Weeks

Codio
Skills you'll gain: Model View Controller, Test Driven Development (TDD), Restful API, Vue.JS, Full-Stack Web Development, Web Applications, Application Programming Interface (API), Unit Testing, Server Side, Software Design Patterns, Javascript, HTML and CSS, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Data Warehousing, Data Integration, Database Administration, SQL, Relational Databases, Data Analysis, Exploratory Data Analysis, Google Analytics
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Hypertext Markup Language (HTML), Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Development Tools, Web Design, Development Environment, Web Content Accessibility Guidelines, Front-End Web Development, Web Development, Web Content, Semantic Web
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Big Data, Analytics, Query Languages, Data Analysis, Data Mining, Data Manipulation, SQL, Data Management
Beginner · Project · Less Than 2 Hours
Starweaver
Skills you'll gain: Generative AI Agents, Generative AI, Agentic systems, OpenAI, LangChain, Prompt Patterns, Tool Calling, LLM Application, Artificial Intelligence, Large Language Modeling, Responsible AI, Software Architecture, Scalability, Application Deployment, System Design and Implementation, Collaboration, Data Integration, Job Evaluation, Logical Reasoning
Intermediate · Course · 1 - 4 Weeks