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: SAS (Software), Forecasting, Time Series Analysis and Forecasting, Statistical Methods, Predictive Modeling, Automation, Anomaly Detection, Data Processing, Data Transformation, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Extract, Transform, Load, Data Validation, Data Transformation, Applied Machine Learning, Object-Relational Mapping, Data Wrangling, Data Cleansing, Data Manipulation, Data Integration, Web Scraping, Data Quality, Data Pipelines, Pandas (Python Package), Descriptive Statistics, Data Modeling, Data Science, Python Programming, Scikit Learn (Machine Learning Library), Extensible Markup Language (XML), Data Analysis
Beginner · Specialization · 1 - 4 Weeks

Infosec
Skills you'll gain: Prompt Engineering, ChatGPT, Open Web Application Security Project (OWASP), Responsible AI, Penetration Testing, Threat Modeling, Cyber Operations, Exploitation techniques, Vulnerability Scanning, Generative AI, Scripting
Beginner · Course · 1 - 3 Months

Skills you'll gain: Model View Controller, Web Development Tools, Web Applications, JavaScript Frameworks, Data Validation, Javascript, Web Development
Intermediate · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: User Interface and User Experience (UI/UX) Design, Figma (Design Software), User Interface (UI), Web Design, Mockups, Adobe XD, Responsive Web Design, User Experience, User Centered Design, Usability, Wireframing, Microsoft Copilot, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Prototyping, Mobile Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Android Development, Unity Engine, Video Game Development, Animation and Game Design, User Interface (UI) Design, Mobile Development, 3D Assets, Graphics Software, Software Installation, Application Deployment, C# (Programming Language)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, Application Deployment, Mobile Development
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: JavaScript Frameworks, UI Components, Full-Stack Web Development, React.js, TypeScript, Front-End Web Development, Web Development, Web Applications, Server Side, User Interface and User Experience (UI/UX) Design, Software Development, Routing Protocols, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Alibaba Cloud Academy
Skills you'll gain: Data Visualization Software, Big Data, Apache Hadoop, Apache Spark, Apache Hive, Distributed Computing, Data Processing, Data Warehousing, Data Analysis, Data Integration, Cloud Security, Artificial Intelligence and Machine Learning (AI/ML), SQL
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Generative AI Agents, Business Process Automation, Make.com, Automation, Microsoft Power Automate/Flow, Generative AI, LangChain, LLM Application, Tool Calling, No-Code Development, Prompt Engineering, Slack (Software), Cloud Computing, Workflow Management, Artificial Intelligence and Machine Learning (AI/ML), Scalability, Responsible AI, Artificial Intelligence, Application Programming Interface (API), Google Sheets
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Deployment, Kubernetes, Cloud Applications, Google Cloud Platform, Cloud Management, Databases, Containerization, Data Access, PostgreSQL, SQL
Beginner · Project · Less Than 2 Hours

EDUCBA
Skills you'll gain: Spring Framework, Spring Boot, Application Development, Redis, Java, Application Design, Hibernate (Java), JUnit, Web Development, Database Development, Application Security, Performance Tuning, Command-Line Interface
Mixed · Course · 1 - 3 Months