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SpringbootMastery Roadmap(2025 Edition)

Phase 1: Beginner (Foundations)

Foundational Level

Understand Java fundamentals and Spring ecosystem basics

Core Java Fundamentals

  1. 1. OOP Concepts → Classes, Objects, Inheritance, Polymorphism, Abstraction, Encapsulation
  2. 2. Exception Handling → Try-catch blocks, custom exceptions, best practices
  3. 3. Collections Framework → List, Set, Map, ArrayList, HashMap, LinkedList usage
  4. 4. Java 8+ Features → Streams, Lambdas, Optional, Method References

Modern Java Features

  1. 1. Java 17+ Features → Records, Sealed Classes, Pattern Matching, Switch Expressions
  2. 2. Functional Programming → Stream API, Collectors, Functional Interfaces
  3. 3. Concurrency Basics → Threads, ExecutorService, CompletableFuture
  4. 4. Memory Management → Garbage Collection, JVM tuning basics

Build Tools & Spring Basics

  1. 1. Maven → Project structure, dependencies, lifecycle, plugins
  2. 2. Gradle → Build scripts, dependency management, multi-module projects
  3. 3. Spring Core → IoC Container, Dependency Injection, Bean Lifecycle
  4. 4. Annotations → @Component, @Service, @Repository, @Autowired, @Configuration

First Projects

  1. 1. Simple REST API → Library/Books CRUD system with H2 database
  2. 2. Spring Boot Basics → @RestController, @RequestMapping, @PathVariable, @RequestParam
  3. 3. Todo List Application → Thymeleaf frontend + Spring Boot backend
  4. 4. Configuration → application.properties, Spring Boot starter templates
Phase 1
Phase 2
Phase 2: Intermediate (Backend Development)

Intermediate Level

Build real-world REST APIs and understand data handling

Advanced Spring Boot

  1. 1. Auto-configuration → How Spring Boot magic works, custom auto-config
  2. 2. Configuration Management → application.yml, @ConfigurationProperties, profiles
  3. 3. Environment Profiles → dev, test, prod configurations, conditional beans
  4. 4. Actuator → Health checks, metrics, application monitoring endpoints

Data Persistence & JPA

  1. 1. Spring Data JPA → @Entity, @Id, @GeneratedValue, repository patterns
  2. 2. Database Relationships → @OneToOne, @OneToMany, @ManyToMany, fetch strategies
  3. 3. Custom Queries → @Query, JPQL, native queries, pagination and sorting
  4. 4. Repository Interfaces → CrudRepository, JpaRepository, custom implementations

Validation & Error Handling

  1. 1. Bean Validation → @Valid, @NotNull, @NotBlank, @Size, custom validators
  2. 2. Global Exception Handling → @ControllerAdvice, @ExceptionHandler patterns
  3. 3. Response Entities → Proper HTTP status codes, error response structures
  4. 4. API Documentation → Swagger/OpenAPI 3, request/response examples

Security & Testing

  1. 1. Spring Security Basics → Authentication, authorization, password encoding
  2. 2. Role-based Security → User roles, method-level security, security expressions
  3. 3. Testing Framework → JUnit 5, Mockito, @SpringBootTest, @WebMvcTest
  4. 4. Integration Testing → @TestPropertySource, embedded databases, test containers
Phase 2
Phase 3
Phase 3: Advanced (Production-Ready)

Advanced Level

Handle real-world challenges like security, microservices, and cloud deployment

Advanced Configuration & Logging

  1. 1. Externalized Configuration → Environment variables, config servers, secrets management
  2. 2. Logging Framework → SLF4J, Logback, structured logging, log aggregation
  3. 3. Application Events → Custom events, @EventListener, async event processing
  4. 4. Caching → @Cacheable, Redis integration, cache eviction strategies

Advanced Security

  1. 1. JWT Authentication → Token generation, validation, refresh tokens
  2. 2. OAuth2 Integration → Social login, resource servers, authorization servers
  3. 3. Method Security → @PreAuthorize, @PostAuthorize, custom security expressions
  4. 4. CSRF & CORS → Cross-site protection, CORS configuration, security headers

Microservices Architecture

  1. 1. Service Discovery → Eureka, Consul, service registration and discovery
  2. 2. API Gateway → Spring Cloud Gateway, routing, filters, rate limiting
  3. 3. Circuit Breaker → Resilience4J, Hystrix, fault tolerance patterns
  4. 4. Configuration Management → Spring Cloud Config, centralized configuration

Messaging & Performance

  1. 1. Message Queues → RabbitMQ, Apache Kafka, message-driven architecture
  2. 2. Async Processing → @Async, CompletableFuture, thread pool configuration
  3. 3. Database Optimization → Connection pooling, query optimization, indexing strategies
  4. 4. Scheduled Tasks → @Scheduled, Quartz integration, distributed scheduling
Phase 3
Phase 4
Phase 4: Expert Level (Industry Ready)

Expert Level

Build enterprise-grade applications with best practices and scalable systems

Production Readiness

  1. 1. Health Checks → Custom health indicators, readiness and liveness probes
  2. 2. Monitoring → Prometheus metrics, Grafana dashboards, custom metrics
  3. 3. Distributed Tracing → Spring Sleuth, Zipkin, request correlation
  4. 4. Application Security → Security scanning, dependency checks, OWASP compliance

Cloud & DevOps

  1. 1. Containerization → Docker best practices, multi-stage builds, image optimization
  2. 2. Kubernetes → Deployments, services, config maps, secrets, ingress
  3. 3. Cloud Platforms → AWS (RDS, ECS, Lambda), GCP, Azure deployment strategies
  4. 4. Infrastructure as Code → Terraform, CloudFormation, Helm charts

Performance & Scalability

  1. 1. JVM Tuning → Garbage collection, memory optimization, profiling tools
  2. 2. Caching Strategies → Redis clustering, distributed caching, cache patterns
  3. 3. Database Scaling → Read replicas, sharding, connection pooling optimization
  4. 4. Load Testing → JMeter, Gatling, performance benchmarking

Advanced Architecture Patterns

  1. 1. Event-Driven Architecture → Event sourcing, CQRS, saga patterns
  2. 2. Clean Architecture → Hexagonal architecture, ports and adapters pattern
  3. 3. Domain-Driven Design → Bounded contexts, aggregates, domain events
  4. 4. API Versioning → Backward compatibility, deprecation strategies
Phase 4
Phase 5
Phase 5: Continuous Learning & Mastery

Mastery Level

Stay current with ecosystem and contribute to open source

Advanced Spring Ecosystem

  1. 1. Spring Boot 3.x+ → Latest features, GraalVM native images, virtual threads
  2. 2. Spring WebFlux → Reactive programming, non-blocking I/O, backpressure handling
  3. 3. Spring Data → Advanced querying, custom repositories, reactive data access
  4. 4. Spring Integration → Enterprise integration patterns, message routing

Emerging Technologies

  1. 1. GraphQL Integration → Spring GraphQL, schema design, subscription handling
  2. 2. GraalVM Native → Ahead-of-time compilation, startup optimization, memory usage
  3. 3. Project Loom → Virtual threads, structured concurrency, scalability improvements
  4. 4. Serverless → AWS Lambda with Spring Boot, cold start optimization

Documentation & Standards

  1. 1. API Documentation → OpenAPI 3.0, automated documentation generation
  2. 2. Code Quality → SonarQube, code coverage, static analysis tools
  3. 3. Testing Strategies → Contract testing, mutation testing, property-based testing
  4. 4. Dependency Management → Security scanning, version management, update strategies

Community & Contribution

  1. 1. Open Source → Contributing to Spring projects, bug reports, feature requests
  2. 2. Knowledge Sharing → Technical blogging, conference speaking, mentoring
  3. 3. Best Practices → Code reviews, architecture decisions, team leadership
  4. 4. Industry Trends → Following Spring roadmap, community discussions, new patterns

🏆 Final Tips to Become Industry-Ready Springboot Engineer

Congratulations! You've completed the Springboot Engineer Mastery Roadmap and are ready to design scalable, robust systems.