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 Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, File Systems, Cloud Computing, Operating Systems, Transaction Processing, Network Security, Data Centers, Authorization (Computing), Apache Hadoop, Data Store, Authentications, Cryptography, NoSQL, Algorithms
Mixed · Course · 1 - 3 Months

Skills you'll gain: LangChain, Tool Calling, LLM Application, Agentic systems, Generative AI Agents, Artificial Intelligence and Machine Learning (AI/ML), Application Development, Software Development
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Database Systems, Relational Databases, Database Management, SQL, Databases, Database Design, Database Architecture and Administration, Information Systems, MySQL, Data Modeling, Transaction Processing, Information Systems Security, Performance Tuning, Conceptual Design
Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Scala Programming, Apache Hadoop, Big Data, Data Manipulation, Distributed Computing, Data Processing, Performance Tuning, SQL, Programming Principles
Intermediate · Course · 1 - 4 Weeks

EDHEC Business School
Skills you'll gain: Investment Management, Portfolio Management, Asset Management, Machine Learning, Applied Machine Learning, Financial Modeling, Supervised Learning, Predictive Modeling, Risk Management, Feature Engineering, Unsupervised Learning, Regression Analysis, Statistical Methods, Computer Science, Dimensionality Reduction
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Algorithms, Computer Hardware, Cryptography, Python Programming, Computer Programming, Computational Thinking, Emerging Technologies, Technical Documentation, Theoretical Computer Science, Linear Algebra, Simulations
Beginner · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Generative AI, Generative Model Architectures, Object Oriented Programming (OOP), Prompt Engineering, Artificial Neural Networks, Computer Programming, Debugging, Python Programming, Semantic Web, Natural Language Processing, Critical Thinking
Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Graph Theory, Data Structures, .NET Framework, Microsoft Copilot, Algorithms, Back-End Web Development, Pseudocode, C# (Programming Language), Performance Tuning, Programming Principles, Server Side, Scalability
Beginner · Course · 1 - 3 Months

Skills you'll gain: LangGraph, Generative AI Agents, Agentic systems, LLM Application, OpenAI, Artificial Intelligence, AI Personalization, Responsible AI, Tool Calling, Query Languages, User Interface (UI), Prompt Engineering, Large Language Modeling, Natural Language Processing, Python Programming, Automation
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft SQL Servers, SQL, Transact-SQL, Databases, Relational Databases, Data Transformation, Data Manipulation, Query Languages, Generative AI, Data Analysis
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Unified Modeling Language, Debugging, Object Oriented Programming (OOP), Python Programming, Computer Programming, System Programming, Pseudocode, Program Development, Scripting Languages, Software Design, Data Structures, UI Components, File Management
Build toward a degree
Beginner · Course · 1 - 3 Months

Skills you'll gain: Sampling (Statistics), Statistical Methods, Descriptive Statistics, Statistical Visualization, Data Import/Export, Pareto Chart, Histogram, Statistical Analysis, R (Software), Box Plots, R Programming, Probability Distribution, Data Synthesis, Probability & Statistics, Exploratory Data Analysis, Statistics, Statistical Hypothesis Testing, Data Science
Beginner · Guided Project · Less Than 2 Hours