Technical Arsenal & Core Competencies
Categorized technical depth across backend development, database systems, microservices, and DevOps tooling.
Programming & Frameworks
Core Java, Spring Boot microservices, Spring Security, and ORM frameworks.Java (Core, OOP) Expert
Spring Boot Expert
JPA / Hibernate Expert
RESTful APIs Expert
Jmix (Vaadin) Advanced
Spring Security Advanced
Databases & Messaging
Relational databases, NoSQL stores, caching layers, and message brokers.PostgreSQL Expert
MongoDB Advanced
Redis Caching Advanced
Apache Kafka Advanced
Security & DevOps Tools
OAuth2 authentication, containerization, and API documentation.Keycloak (OAuth2) Advanced
Docker Advanced
OpenAPI / Swagger Expert
Git & Version Control Expert
Linux Environment Proficient
Web & Frontend Technologies
Client-side web interfaces and modern JavaScript frameworks.JavaScript / HTML5 / CSS3 Proficient
React JS Proficient
Svelte & SvelteKit Advanced