Back to The Enterprise Spring Boot & AI Program
Build for Production • 4 Masterclasses

Phase 2: Enterprise Architecture

Move from basic logic to enterprise-grade systems. Master persistence, design robust REST APIs, implement modern integration testing, and secure the application for cloud deployment.

Masterclass 1

Data Access & Persistence

The backbone of the system. Spring Data JPA is mastered to handle complex entity relationships efficiently. The focus lies on writing clean, derived queries and ensuring data integrity through robust transaction management.

Core Concepts

  • Spring Data JPA Repositories
  • Entity Mapping & Relationships
  • Transaction Management (@Transactional)
  • Optimizing Queries & Performance
Masterclass 2

Advanced REST API Design

Industry-standard REST APIs are designed and exposed using Spring MVC. The focus lies on clean resource mapping, secure DTO patterns, and utilizing the modern RestClient for seamless service-to-service integration.

Core Concepts

  • Professional REST Controller Design
  • DTO Patterns & JSON Mapping
  • Modern RestClient Integrations
  • HTTP Standards & Error Handling
Masterclass 3

Modern Integration Testing

Verifying the ecosystem in motion without infrastructure friction. Moving beyond unit tests, fast and reliable integration tests are built using Spring Test Slices (@SpringBootTest). By leveraging H2 databases and WireMock to simulate external API failures, application layers are ensured to communicate flawlessly in a controlled, 100% Java-native environment.

Core Concepts

  • Integration Testing (@SpringBootTest)
  • Spring Test Slices (@WebMvcTest, @DataJpaTest)
  • Mocking External APIs with WireMock
  • API Contract Verification
Masterclass 4

Enterprise Security & API Hardening

Preparing the application for the harsh reality of production. Spring Security is implemented to protect REST endpoints and internal methods via Role-Based Access Control. Furthermore, APIs are hardened by implementing global exception handling and exploring resilience patterns to gracefully handle external system crashes.

Core Concepts

  • Spring Security Filter Chain
  • Role-Based Access Control (RBAC)
  • Method-Level Security (@PreAuthorize)
  • Global Exception Handling (@ControllerAdvice)
Andreas Olsson

Lead Instructor & Architect

Andreas Olsson

Expertise through Active Learning

With over 20 years of experience in Java and the Spring ecosystem, my mission is to help organizations rapidly upskill their engineering teams. From mastering modern Spring Boot architectures to integrating generative AI, I help bridge the gap between legacy systems and the future.

That is exactly why I designed The Enterprise Spring Boot & AI Program. Theoretical lectures and passive slide consumption don't build confident engineers. Real competence comes from building, breaking, and fixing enterprise-grade architecture under expert guidance.

"Having led over 20 enterprise bootcamps, my driving force is to turn your developers into highly effective, production-ready engineers. When your team unlocks these new capabilities, the entire organization moves faster."

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Read firsthand accounts from software engineers who have leveled up their skills through intensive Java and Spring Boot bootcamps led by the Lead Instructor.

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