public class TechStackService implements StackVisualizer
// Java annotation-based skill levels and technology stack
Tech Stack: Up to date
Skill Levels
@Expert // 3+ years production experience
Java Core
Spring Boot
PostgreSQL
Docker
MySQL
MSSQL
@Advanced // Production ready & enterprise level
Microservices
AWS
Spring Security
JWT & OAuth2
RabbitMQ
@Learning // Currently exploring
Python
Go
Full Technology Stack
Frameworks & Libraries
Spring Boot
Spring Cloud
Spring Security
Spring OAuth2
Spring Boot Gateway
Spring Boot gRPC
Spring Boot GraphQL
Hibernate
Spring MVC
Microservices
Eureka Server
Databases
PostgreSQL
MySQL
H2 Database
MSSQL
Redis
Tools & Others
JPA
JDBC
JUnit
Git
RabbitMQ
Maven
Gradle
JWT Token
Cloud & Infrastructure
AWS (EC2, S3, RDS, IAM)
Docker
APIs
RESTful API
GraphQL
gRPC
Soft Skills
Problem Solving
Microservices Architecture
System Design
Code Review
Continuous Learning