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.

Google Cloud
Skills you'll gain: API Gateway, Cloud API, Application Programming Interface (API), Capacity Management, Scalability, Application Security, Hybrid Cloud Computing, Security Controls, Data Security, Cloud Deployment, Application Deployment, Role-Based Access Control (RBAC), Development Environment, Encryption, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: System Programming, Distributed Computing, Scalability, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Model Evaluation, Data Preprocessing, Regression Analysis, Applied Machine Learning, Scikit Learn (Machine Learning Library), Data Analysis, Matplotlib, Random Forest Algorithm, Machine Learning, Data Visualization, Decision Tree Learning, Artificial Neural Networks, Deep Learning, Python Programming
Beginner · Guided Project · Less Than 2 Hours

O.P. Jindal Global University
Skills you'll gain: Big Data, Apache Spark, PySpark, Apache Hadoop, Apache Hive, Databases, NoSQL, Data Mining, Data Warehousing, Real Time Data, Cloud Computing, Data Processing, Query Languages, Distributed Computing, Applied Machine Learning, Scripting Languages
Build toward a degree
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: UI Components, User Interface (UI), User Interface (UI) Design, Event-Driven Programming, Application Design, Development Environment, Application Development, Application Frameworks
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Maintainability, Code Review, Software Architecture, Software Design, Object Oriented Design, Debugging, Testability, Programming Principles, Scalability
Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: AI Workflows, Technical Communication, AI Enablement, Model Deployment, Generative AI Agents, Data Integration, AI Orchestration, Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems, Responsible AI, Artificial Intelligence, Cloud Computing, Deep Learning, Data Visualization, Python Programming, Machine Learning, Data Engineering, Anomaly Detection, Statistical Analysis
Beginner · Specialization · 1 - 3 Months

AI CERTs
Skills you'll gain: Blockchain, Private Cloud, Restful API, Go (Programming Language), Compliance Auditing, Program Development, Frontend Integration, Software Development Tools, Application Programming Interface (API), Enterprise Security, Auditing
Advanced · Course · 1 - 3 Months

Akamai Technologies, Inc.
Skills you'll gain: HTML and CSS, Responsive Web Design, Hypertext Markup Language (HTML), Web Design and Development, Cascading Style Sheets (CSS), Web Development, Web Applications, Web Design, Front-End Web Development, Animations, Web Content, Embeddings
Beginner · Course · 1 - 3 Months
Skills you'll gain: Responsible AI, Data Ethics, HR Tech, AI Personalization, Automation, Employee Onboarding, Human Resource Strategy, AI Enablement, Generative AI, Business Ethics, User Feedback, Document Management, Personalized Service, ChatGPT, Employee Engagement, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Exploratory Data Analysis, Sampling (Statistics), Probability Distribution, R (Software), R Programming, Probability & Statistics, Bayesian Statistics, Data Analysis, Probability, Statistics, Statistical Analysis, Statistical Inference
Beginner · Course · 1 - 3 Months

Skills you'll gain: Full-Stack Web Development, Node.JS, User Interface (UI), Restful API, Back-End Web Development, User Accounts, Server Side, Swift Programming, JavaScript Frameworks, Secure Coding, Web Development Tools, Application Programming Interface (API), API Design, Authentications, Mobile Development, Database Software, MongoDB, Web Development, Development Environment, API Gateway
Beginner · Specialization · 1 - 3 Months