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.

UiPath
Skills you'll gain: Human Computer Interaction
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Game Design, Video Game Development, Unreal Engine, Animation and Game Design, Virtual Environment, Computer Graphics, 3D Assets, Scripting, User Interface (UI), Data Structures, Performance Tuning
Mixed · Course · 1 - 3 Months

Skills you'll gain: Apache Maven, Java Platform Enterprise Edition (J2EE), Hibernate (Java), Unit Testing, Docker (Software), Software Design Patterns, Object-Relational Mapping, Data Access
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Docker (Software), CI/CD, Cloud Computing Architecture, Application Performance Management, Apache Spark, Google App Engine
Intermediate · Course · 1 - 3 Months

Northeastern University
Skills you'll gain: Data Governance, Database Management, Database Architecture and Administration, Data Management, Data Warehousing, Database Design, SQL, Transaction Processing, Stored Procedure, Data Security, Disaster Recovery, Encryption, Server Side, Data Encryption Standard, Data Integrity, Graph Theory
Build toward a degree
Mixed · Course · 1 - 3 Months

Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Google Cloud Platform, Artificial Intelligence, Responsible AI, Data Quality, Machine Learning, Cloud API, Business Intelligence, Natural Language Processing, Application Programming Interface (API), Image Analysis, Predictive Analytics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LLM Application, OpenAI, Generative AI Agents, Agentic systems, Tool Calling, Prompt Engineering, ChatGPT, Artificial Intelligence, Application Programming Interface (API), User Interface (UI), Large Language Modeling, Python Programming, Development Environment, Application Deployment, JSON, Debugging
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Amazon S3, SQL, Database Administration, Transact-SQL, Stored Procedure, IT Automation, Cloud Infrastructure, User Accounts, Compliance Auditing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Information Architecture, HTML and CSS, Verification And Validation, Semantic Web, Web Development, Web Design and Development, Development Testing, Data Validation, Design Strategies, User Interface (UI) Design
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: VMware ESX Servers, Virtual Local Area Network (VLAN), Network Model, Software Installation, Command-Line Interface, Network Routers, Virtualization, Network Troubleshooting, Virtual Environment, General Networking, System Configuration, User Interface (UI), Simulations, Application Programming Interface (API), System Requirements
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Hybrid Cloud Computing, VMware ESX Servers, Cloud Management, Virtual Machines, Cloud Infrastructure, Virtualization and Virtual Machines, IT Automation, Cloud Computing, Windows PowerShell, Automation, Scripting, System Support, Performance Tuning, Application Programming Interface (API), System Monitoring, Restful API
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Unreal Engine, Game Design, Virtual Environment, Virtual Reality, Simulations, Augmented and Virtual Reality (AR/VR)
Mixed · Course · 1 - 4 Weeks