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: Scalability, Time Series Analysis and Forecasting, File I/O, Code Reusability, Programming Principles, Data Import/Export, Data-oriented programming, Scripting, Data Analysis, Real Time Data, Scripting Languages, Data Processing, Data Science, Analysis, Computational Logic, Data Analysis Software, Data Manipulation, Machine Learning Methods, Complex Problem Solving, Machine Learning
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, Selenium (Software), Apache Maven, Continuous Integration, Build Tools, CI/CD, Object Oriented Programming (OOP), Object Oriented Design, Java, Software Design Patterns, Test Script Development, Test Automation, Java Programming, Code Reusability, Software Testing, Maintainability, Test Tools, Test Case, Browser Compatibility, Software Design
Intermediate · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Agile Methodology, Scrum (Software Development), Agile Project Management, Sprint Retrospectives, Agile Software Development, Sprint Planning, User Story, Backlogs, Agile Product Development, Project Estimation, Project Management, Estimation, Project Planning
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: LLM Application, Model Evaluation, Large Language Modeling, Retrieval-Augmented Generation, Vector Databases, MLOps (Machine Learning Operations), Performance Tuning, Debugging, Performance Testing, Statistical Methods, Query Languages, SQL, Statistical Hypothesis Testing, Statistical Analysis, Artificial Intelligence and Machine Learning (AI/ML), Data-Driven Decision-Making, Python Programming
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Django (Web Framework), Restful API, AI Personalization, Payment Processing, Product Assortment, Credit/Debit Card Processing, Merchant Services, Content Management Systems, Blogs, API Design, Application Deployment, Order Management, Merchandise Maintenance, User Accounts, Data Sharing, Web Applications, Web Frameworks, Python Programming, Ajax, Javascript
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Frontend Integration, Web Development Tools, Authorization (Computing), Event-Driven Programming, Code Reusability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: User Interface (UI), Java, Java Programming, Object Oriented Design, Object Oriented Programming (OOP), User Interface (UI) Design, Unit Testing, Java Platform Enterprise Edition (J2EE), JUnit, Test Script Development, Data Validation, Software Development, Application Design, Development Testing, Application Development, Program Development, Software Testing, Database Development, Test Automation, Software Documentation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Data Analysis, Data Manipulation, Data Wrangling, Data Collection, Data Cleansing, Data Processing, Data Quality, Data Analysis Software, Data Science, Feature Engineering, Data Visualization, Data Presentation, Data Validation, Correlation Analysis, Machine Learning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unreal Engine, 3D Assets, Virtual Environment, Computer Graphics, Computer Graphic Techniques, Fine-tuning, Game Design, User Interface (UI), Scalability, Development Environment, Performance Tuning, Design
Beginner · Course · 3 - 6 Months

Skills you'll gain: Flutter (Software), Google Gemini, Gemini, Generative AI Agents, Artificial Intelligence, LLM Application, Model Deployment, AI Workflows, Google Cloud Platform, AI Integrations, Generative AI, Application Development, Mobile Development, Mobile Development Tools, Cloud Hosting, Agentic systems
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Platforms, Cloud Infrastructure, Hybrid Cloud Computing, Cloud Computing Architecture, Cloud-Native Computing, Cloud Computing, Cloud Management, Google Cloud Platform, Serverless Computing, Cloud Applications, Infrastructure As A Service (IaaS), Multi-Cloud, Cloud-Based Integration, Enterprise Application Management, Cloud Deployment, Digital Transformation, Application Programming Interface (API), Business Transformation, Leadership and Management, Finance
Beginner · Course · 1 - 3 Months

Simplilearn
Skills you'll gain: Backlogs, Scrum (Software Development), Sprint Retrospectives, Sprint Planning, Agile Software Development, Agile Methodology, Agile Project Management, Agile Product Development, Product Requirements, Product Management, Meeting Facilitation, Quality Assurance, Communication
Beginner · Course · 1 - 4 Weeks