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.

Skills you'll gain: Unreal Engine, Data Structures, Debugging, Video Game Development, Game Design, Scripting, Data Store, Event-Driven Programming, Object Oriented Programming (OOP), Data Management, Software Design
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Cascading Style Sheets (CSS), Web Design, Interactive Design, Color Theory, User Interface (UI), Web Development
Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: HTML and CSS, Software Documentation, Technical Documentation, Style Guides, Web Development, Technical Writing
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Test Case, Test Planning, Test Automation, System Testing, Test Engineering, Continuous Integration, Acceptance Testing, Test Tools, CI/CD, Continuous Delivery, Regression Testing, Quality Assurance, Software Development Tools, Software Engineering Tools
Beginner · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Robotics, Mathematical Modeling, Computer Programming Tools, Simulation and Simulation Software, Mechanics, Torque (Physics), Algorithms, Applied Mathematics, Differential Equations, Linear Algebra
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Interactive Data Visualization, Data Transformation, Data Presentation, Data Visualization Software, Business Intelligence, Data Analysis, Extract, Transform, Load, Exploratory Data Analysis, Pandas (Python Package), Data Collection, Data Pipelines, Development Environment, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: 3D Assets, 3D Modeling, Unreal Engine, Virtual Environment, Computer Graphics, Augmented and Virtual Reality (AR/VR), Video Game Development, Game Design, Computer Graphic Techniques, Animation and Game Design, Design Elements And Principles, File Management, Editing, Graphics Software, User Interface (UI), Data Import/Export
Beginner · Course · 3 - 6 Months

Skills you'll gain: Serverless Computing, Application Deployment, Cloud API, Google Cloud Platform, Cloud Storage, Application Programming Interface (API), Cloud Services, File Management, Data Migration
Intermediate · Project · Less Than 2 Hours

EDUCBA
Skills you'll gain: Data Lakes, Microsoft Azure, Stored Procedure, Data Architecture, Performance Tuning, Data Management, Query Languages, Data Manipulation, Scripting, SQL, Data Processing, Windows PowerShell, Microsoft Visual Studio, Command-Line Interface, Heat Maps
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unity Engine, Game Design, Video Game Development, Artificial Intelligence, Simulations, Object Oriented Programming (OOP), C# (Programming Language), Software Design Patterns, Debugging
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: SonarQube, Code Review, Vulnerability, CI/CD, Secure Coding, GitLab, Jenkins, Application Security, Vulnerability Assessments, Software Quality Assurance, Maintainability, Kubernetes, GitHub, Software Installation, Security Management, Data Integration, Performance Tuning, Quality Improvement, Technical Management, Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, Development Environment, Agentic systems, AI Workflows, Artificial Intelligence, Tool Calling, LLM Application, Database Systems, Database Management, SQL, Database Application, OpenAI API, Software Development Tools, Prompt Engineering
Intermediate · Course · 1 - 3 Months