Senior Java Developer 

Start Date: 10/11/2025

End Date: 31/12/2026 (with option for extension)

Deadline for Application: 04/11/2025

Location: Brussels

Language Requirements: English + Dutch or French

Employment Type: Full-time

Job Description:

We are looking for a Senior Developer with expertise in Java Spring Boot to streamline event handling over Kafka. 

Required Skills and Experience:

• Senior-level expertise in:
  • Java
  • Spring Boot
  • Apache Kafka
  • REST API and SOAP service development
  • Asynchronous integration patterns (e.g., event-driven architecture, message queues)
  • Kubernetes

Nice to Have / Bonus Skills:

• Experience with AWS services:
  • EKS, SQS, S3
• Familiarity with PostgreSQL
• Knowledge of CI/CD pipelines, monitoring, and logging in cloud-native environments

Qualifications:

• Java 21+ / Spring Boot 3.5+: 5 years
• Persistency (JPA, JDBC, PostgreSQL): 5 years
• Design and implementation of GraphQL: 2 years
• Event processing via Kafka (Confluent): 3 years
• SOA principles (REST, SOAP): 3 years
• JavaScript / Typescript: 3 years
• Cloud deployment (Azure DevOps, AWS, Docker, Kubernetes): 2 years
• SRE principles and GitOps: 2 years

Specific Skills:

• JAVA Advanced (5 years < x ≤ 8 years)
• Kafka (Confluent) Confirmed (3 years < x ≤ 5 years)
• Architecture SOA and web services Confirmed (3 years < x ≤ 5 years)
• Kubernetes Confirmed (3 years < x ≤ 5 years)
• REST API Advanced (5 years < x ≤ 8 years)
• AWS Services (EKS, SQS, S3) Confirmed (3 years < x ≤ 5 years)
• CI/CD pipelines & monitoring Confirmed (3 years < x ≤ 5 years)
• PostgreSQL: Yes