Senior Java Backend Engineer (Hybrid) – Brussels

SEIDOR; Brussel Hoofdstad; Hybrid; EUR 72,000 - 110,000; Full time

Job summary

SEIDOR is seeking a Senior Java Developer in Brussels for a Hybrid role. You will design, develop and test back-end components using the Spring ecosystem and implement REST and event-driven APIs within a customer-focused team.

Requirements include 4 years of Java back-end experience, 8 years with Spring, 6 years with relational DBs/ORM, and 3 years as a technical lead. EU/Belgian work eligibility preferred.

Qualifications

• 4 years of experience developing Java back-end applications.
• 8 years with Spring Boot, Spring Security, Spring Data.
• 8 years of REST API design and event-driven integrations.
• 6 years with relational DBs and ORM (Hibernate/JPA).
• 5 years in DevSecOps tooling, Git, Jira/Confluence, CI/CD.
• 3 years as technical lead of a back-end team.

Responsibilities

• Design, develop and test back-end components with Spring.
• Implement REST and event-driven APIs and business logic.
• Implement persistence and integrate messaging systems.
• Handle authentication/authorization (OAuth 2.0 / OIDC / SAML).
• Contribute code and config to CI/CD pipelines.
• Participate in code reviews and pair programming; document APIs.

Skills

Java back-end development

Spring ecosystem

REST API design

Event-driven integration

Relational databases & ORM

DevSecOps tooling

Technical leadership

Education

Bachelor's degree in Computer Science

Tools

Kafka

RabbitMQ

Docker

Kubernetes

Git

Jira/Confluence

Jenkins/Bamboo

Job description

SEIDOR is seeking a Senior Java Developer in Brussels for a Hybrid role. You will design, develop and test back-end components using the Spring ecosystem and implement REST and event-driven APIs within a customer-focused team.

Requirements include 4 years of Java back-end experience, 8 years with Spring, 6 years with relational DBs/ORM, and 3 years as a technical lead. EU/Belgian work eligibility preferred.