Back End Developer

**Join Avanto \- A Leader in the Furniture Industry!** **About Avanto:** Avanto is an innovative and forward\-thinking company transforming the **furniture industry** through technology and a people\-centric approach. We stand out for our cutting\-edge solutions, exceptional service, and strong commitment to excellence, integrity, and innovation. At Avanto, we foster an environment where employees can thrive both personally and professionally, promoting collaboration, continuous learning, and a results\-driven culture. Our mission is to make a positive impact on the industry by driving change and continuous improvement. **About the Senior Backend Engineer** We are seeking \*\*Senior Backend Developers\*\* to join our dynamic team building SAS, an enterprise decision\-making platform that automates sourcing needs to save time and money for businesses. This role focuses on developing and maintaining our sophisticated microservices architecture with Spring Boot, GraphQL, and enterprise\-grade patterns. **Key Responsibilities** \*\*API Gateway\*\*: Request routing, authentication, rate limiting, audit logging \- \*\*Identity Service\*\*: User management, JWT tokens, multi\-tenant authentication \- \*\*Parts Service\*\*: GraphQL API, complex data relationships, search optimization \- \*\*RFQ Service\*\*: Business workflow processing, event\-driven architecture \- \*\*Hephaestus Service\*\*: Market data processing, analytics, reporting \- \*\*Clio Service\*\*: Document processing, file management, data extraction **2\. Service Architecture Overview** **Backend Services** api\-gateway/ → Routing, auth, rate limiting identity\-service/ → Authentication \& authorization parts\-service/ → GraphQL\-based parts management rfq\-service/ → RFQ workflows \& event processing hephaestus\-service/ → Market intelligence \& analytics clio\-service/ → Document management \& processing **Required Experience \& Skills** **Core Backend Technologies** Java 19 with Spring Boot 3\.0\.13, Spring Web / WebFlux (Reactive), Spring Data JPA with Hibernate 6\.x, Spring Security with OAuth2, Spring Cloud Gateway, Spring Cloud AWS * **Database** PostgreSQL 42\.6\.1, JPA/Hibernate with Hypersistence Utils, Flyway Database Migrations, multi\-tenant schema\-per\-tenant architecture * **API \& Integration** RESTful APIs, GraphQL (Spring GraphQL), OpenAPI 3\.0 with Swagger UI, JSON Schema validation * **Cloud \& Messaging** AWS S3, AWS SQS, AWS SNS, event\-driven architecture, messaging and queuing patterns * **Security** JWT token management, OAuth2 Resource Server, role\-based access control (RBAC), multi\-tenant data isolation **Salary Range** USD 3,000 – 4,000 **AVANTO is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against based on disability.**