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: API Design, Back-End Web Development, Secure Coding, Data Security, Application Programming Interface (API), Restful API, IT Infrastructure, Application Security, Infrastructure Security, Data Integrity, Servers, Server Administration, Web Servers, Encryption, Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prototyping, Object Oriented Programming (OOP), JavaScript Frameworks, Software Design Patterns, Software Design, Maintainability, Software Architecture
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Big Data, Google Cloud Platform, Data Access, SQL, Query Languages
Beginner · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Web Components, Cascading Style Sheets (CSS), HTML and CSS, Angular, Hypertext Markup Language (HTML), Responsive Web Design, Frontend Performance, Front-End Web Development, Bootstrap (Front-End Framework), Web Content Accessibility Guidelines, Web Design, Web Design and Development, React.js, UI Components, Frontend Integration, Web Analytics and SEO, JavaScript Frameworks, Web Development, Javascript and jQuery, Semantic Web
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Computer Vision, Mobile Development, Model Deployment, PyTorch (Machine Learning Library), Application Development, Tensorflow, Transfer Learning, Application Deployment, Data Preprocessing, Model Evaluation, User Interface (UI), Development Environment, Real Time Data, User Interface (UI) Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Ajax, Extensible Languages and XML, Web Design, Java Platform Enterprise Edition (J2EE), Data Validation, Web Applications, Scripting, Javascript and jQuery, Web Development, Android Development, Hypertext Markup Language (HTML), Middleware, Model View Controller, Hibernate (Java), Visualization (Computer Graphics), Interoperability, Java, Cascading Style Sheets (CSS), Mobile Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Web Applications, Penetration Testing, Application Security, Security Controls, Vulnerability Assessments, Application Programming Interface (API), Exploitation techniques, Web Servers, Cloud Security, SQL
Intermediate · Course · 1 - 4 Weeks

Corporate Finance Institute
Skills you'll gain: Tableau Software, Business Intelligence, Dashboard, Technical Analysis, Market Data, Investment Banking, Tree Maps, Interactive Data Visualization, Data Visualization Software, Market Analysis, Data Analysis, SQL
Beginner · Course · 1 - 3 Months

Skills you'll gain: Matplotlib, Data Visualization Software, Data Visualization, Pandas (Python Package), Jupyter, Data Import/Export, Data Science, Data Analysis, Analytical Skills, Python Programming, Scripting
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Jenkins, Selenium (Software), GitHub, Git (Version Control System), Performance Testing, Continuous Integration, CI/CD, Apache Maven, Version Control, Java Programming, Test Automation, JUnit, Object Oriented Programming (OOP), Integration Testing, Browser Compatibility
Intermediate · Course · 3 - 6 Months
Skills you'll gain: Generative AI, Retrieval-Augmented Generation, Large Language Modeling, Responsible AI, Data Ethics, Generative Adversarial Networks (GANs), Agentic systems, AI Security, Discussion Facilitation, Business Ethics, Embeddings, Regulatory Compliance, Case Studies, Data Synthesis, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, SAS (Software), AI Workflows, Analytics, Machine Learning
Beginner · Specialization · 3 - 6 Months

Corporate Finance Institute
Skills you'll gain: Interactive Data Visualization, Tableau Software, Data Visualization Software, Exploratory Data Analysis, SQL, Data Analysis, Data Transformation, Data Manipulation
Advanced · Course · 1 - 3 Months