Senior Java Backend Engineer - Spring & Fully Remote

SEIDOR; Brussel; Remote; EUR 70,000 - 110,000; Full time

Job summary

SEIDOR, a multinational technology company, invites you to join Brussels-based teams as a Senior Java Developer working fully remotely. You will design, implement and maintain back-end services using Spring, build REST and event-driven integrations, and contribute to secure authentication and deployment pipelines.

Requirements include 4+ years in Java back-end development, 8+ years with Spring, and demonstrated technical leadership.

Qualifications

• 4 years of experience developing Java back-end applications.
• 8 years of experience with the Spring ecosystem (Spring Boot, Spring Security, Spring Data).
• 8 years of experience designing and implementing REST APIs and event-driven integrations.
• 6 years of experience with relational databases and ORM frameworks (e.g. Hibernate/JPA).
• 5 years of experience with development and DevSecOps tooling (Git, Jira/Confluence, CI/CD pipelines).
• 3 years of experience as technical lead of a back-end development team, including design decisions and coding standards.

Responsibilities

• Design, develop and unit-test back-end components using the Spring ecosystem.
• Implement REST and event-driven APIs and business logic.
• Implement persistence layers and integrate with messaging systems.
• Implement authentication and authorisation (OAuth 2.0 / OIDC / SAML).
• Contribute source code and configuration to the customer’s CI/CD pipeline.
• Participate in code reviews and pair programming.
• Produce and maintain API documentation.
• Identify, debug and fix defects; support deployment and migration activities.

Skills

Technical leadership

Education

Bachelor's degree in Computer Science

Master's degree

Tools

Java

Spring Boot

Spring Security

Spring Data

REST APIs

Kafka

RabbitMQ

Docker

Kubernetes

Hibernate/JPA

Git

Jira

Confluence

CI/CD (Jenkins/Bamboo)

Jenkins

Bamboo

OAuth 2.0 / OIDC / SAML

Job description

SEIDOR, a multinational technology company, invites you to join Brussels-based teams as a Senior Java Developer working fully remotely. You will design, implement and maintain back-end services using Spring, build REST and event-driven integrations, and contribute to secure authentication and deployment pipelines.

Requirements include 4+ years in Java back-end development, 8+ years with Spring, and demonstrated technical leadership.