Before Spring Boot, there was Spring Framework. Mastering Core Spring's IoC container, AOP, Spring MVC, Spring Data, and Spring Security gives you the deep understanding that separates senior developers from junior ones.
The foundational knowledge that makes you a truly senior Java developer — skills Spring Boot alone won't give you.
Deep dive into ApplicationContext, BeanFactory, bean lifecycle, scopes, and the container internals every senior dev must know.
Constructor, setter, and field injection — best practices, circular dependencies, and when to use each.
Cross-cutting concerns with @Aspect, pointcuts, advice types, and AOP proxies — the magic behind @Transactional.
DispatcherServlet internals, handler mappings, view resolvers, interceptors, and building clean web layers.
Repository pattern, JPA integration, query methods, Specifications, and Spring Data REST.
Security filter chain, AuthenticationManager, AccessDecisionManager, and custom security components.
Reactive programming with Project Reactor, WebClient, functional endpoints, and reactive streams.
Batch processing with ItemReader/Writer, Spring Integration EIP patterns, and enterprise messaging.
A comprehensive deep-dive into Spring's architecture that makes you a 10× more effective Spring Boot developer.
Flexible pricing for every learning mode. Request a personalised quote in 24 hours.
Deep Spring knowledge commands premium salaries — companies pay extra for engineers who understand the internals.
Design large-scale Spring-based enterprise systems — the highest-paying Java career path.
Build non-blocking, reactive systems with Spring WebFlux and Project Reactor.
Spring Batch powers ETL pipelines at banks, insurance companies, and data-heavy enterprises.
Implement complex authentication & authorisation patterns in enterprise Java systems.
Deep Spring Framework knowledge qualifies you to teach and mentor other Java developers.