09/05/2025
π Roadmap to Becoming a Spring Boot Developer in 2025 π
Spring Boot is the backbone of modern Java backend development β powering microservices, APIs, and scalable enterprise applications. If youβre aiming to become a Spring Boot Developer, hereβs a structured roadmap to guide your journey:
1. Java Fundamentals
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Master Java 17/21 LTS
β
OOP, Collections, Exceptions
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Lambdas, Streams, Multithreading, Records, Pattern Matching
2. Build Tools (Maven / Gradle)
βοΈ Project structure & dependencies
βοΈ Profiles & environment setup
βοΈ Maven vs. Gradle differences
3. Spring Core
π± IoC & Dependency Injection
π± ApplicationContext & Bean lifecycle
π± Spring Configuration basics
4. Spring Boot Essentials
π Auto-configuration & starters
π Profiles & config properties
π Actuator & health checks
π Spring MVC, Validation, Controller Advice
5. Data Access & Persistence
πΎ Spring Data JPA & Entity relationships
πΎ Transactions & Query methods
πΎ Flyway/Liquibase migrations
πΎ PostgreSQL / MySQL + Redis
6. API Security
π Spring Security fundamentals
π JWT Authentication
π OAuth2 / OpenID Connect
π Roles, Authorities & Custom Auth
7. Building REST APIs
π‘ Controllers, DTOs, Exception handling
π‘ File upload/download
π‘ Pagination, Filtering, Rate Limiting
8. Testing
π§ͺ JUnit 5, Mockito, Integration Testing
π§ͺ Testcontainers for DB
π§ͺ MockMvc & WebTestClient
9. API Clients & External Calls
π RestTemplate (legacy)
π WebClient (Reactive)
10. Cloud & Deployment
βοΈ AWS / GCP / Azure deployments
βοΈ Kubernetes & Serverless architectures
11. DevOps & Monitoring
π³ Dockerize Spring Boot apps
π Micrometer + Actuator monitoring
π Centralized logging (ELK, Grafana, Loki)
β‘ CI/CD pipelines (GitHub Actions, Jenkins)
12. Advanced Topics
β‘ Microservices architecture
β‘ Reactive Programming
β‘ Messaging (RabbitMQ, Kafka)
β‘ GraphQL
π‘ Tip: Donβt learn everything at once. Start with Java + Spring Core + Spring Boot basics, then expand into persistence, security, testing, and deployment.
π Ready to master Spring Boot in 2025?