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.

University of London
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Human Computer Interaction, Interaction Design, Bootstrap (Front-End Framework), Usability, User Interface and User Experience (UI/UX) Design, Wireframing, Cascading Style Sheets (CSS), Data Structures, JavaScript Frameworks, Javascript
Mixed · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: LLM Application, Large Language Modeling, ChatGPT, Prompt Engineering, Generative AI, System Monitoring, Application Security, Natural Language Processing, Semantic Web, Artificial Intelligence
Intermediate · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Oracle SQL Developer, SQL, Oracle Databases, PL/SQL, Database Design, Database Management Systems, Relational Databases, Database Management, Databases, Database Architecture and Administration, Data Storage, Transaction Processing, Stored Procedure, Data Management, Query Languages, Data Modeling, Network Architecture, Command-Line Interface, Data Integrity, Performance Tuning
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: API Design, Restful API, API Gateway, Application Programming Interface (API), Cloud API, Application Lifecycle Management, Enterprise Application Management, Proxy Servers, Software Documentation, Authentications, Authorization (Computing)
Beginner · Course · 1 - 3 Months
Skills you'll gain: OS Process Management, Operating Systems, C (Programming Language), System Programming, Virtualization, Virtual Machines, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Supervised Learning, Machine Learning Algorithms, Exploratory Data Analysis, Applied Machine Learning, Machine Learning, Scikit Learn (Machine Learning Library), Predictive Modeling, Data Science, Random Forest Algorithm, Python Programming, Classification And Regression Tree (CART), NumPy, Regression Analysis, Data Analysis, Feature Engineering, Statistical Analysis, Performance Tuning
Build toward a degree
Intermediate · Course · 1 - 3 Months

Universitat Autònoma de Barcelona
Skills you'll gain: Video Game Development, Game Design, Animation and Game Design, Unity Engine, Unreal Engine, Augmented and Virtual Reality (AR/VR), Computer Programming, Computer Graphics, User Interface (UI), Storytelling, Artificial Intelligence
Mixed · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Agentic systems, Artificial Intelligence, Algorithms, Python Programming, Theoretical Computer Science, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Import/Export, C++ (Programming Language), C and C++, Data Structures, File Management, Computer Programming, Computer Science, Data Storage
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Java Programming, Eclipse (Software), Java, Debugging, Integrated Development Environments, Object Oriented Programming (OOP), Data Structures, File Management, Development Environment, Software Design, Programming Principles, Problem Solving
Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Portfolio Management, Time Series Analysis and Forecasting, Performance Measurement, Financial Forecasting, Analytics, Financial Trading, Financial Analysis, R Programming, Trend Analysis, Investment Management, Statistical Analysis, Regression Analysis, Risk Analysis, Algorithms, Risk Management
Intermediate · Course · 1 - 4 Weeks

Google AR & VR
Skills you'll gain: Augmented Reality, Augmented and Virtual Reality (AR/VR), Application Design, Virtual Environment, 3D Assets, Unity Engine, Mobile Development, User Experience, Computer Vision, User Interface and User Experience (UI/UX) Design, User Flows
Beginner · Course · 1 - 4 Weeks