Senior Software Engineer – Java, Spring Boot

Jobtailor; Diegem; Sur place; EUR 65 000 - 90 000; Plein temps

Résumé du poste

Jobtailor in Diegem, Belgium is looking for a senior Java engineer to develop and maintain applications and microservices using Spring Boot 3.x. You will design REST APIs and scalable architectures with Kafka, contribute to architectural decisions, and ensure quality via CI/CD and automated testing.

You will work in Maven multi-module projects, collaborate in an Agile/Scrum environment, and use Azure DevOps, Docker, Kubernetes, and ArgoCD. English communication is essential; French is a plus.

Qualifications

• Strong experience with Java and Spring Boot 3.x.
• Solid experience with REST APIs, microservices, Maven multi-module projects, and Apache Kafka.
• Proficiency with AI-assisted development tooling.
• Experience with Docker, Kubernetes, Git, automated testing, CI/CD, and Azure DevOps pipelines.
• Strong plus: OPA/OPAL, ArgoCD, OAuth2/OIDC, IAM, and multi-tenancy.
• Strong plus: MariaDB, SQL, and Flyway migrations.
• Strong plus: experience with healthcare integrations, such as eHealth, RIZIV, and HL7/FHIR.
• Ability to translate functional requirements into clear technical solutions.
• Comfortable communicating in English.
• French is a plus.
• Willingness to share knowledge and contribute to a collaborative engineering culture.

Responsabilités

• Develop and maintain applications and microservices using Java and Spring Boot 3.x.
• Design REST APIs, event-driven services, and scalable microservice architectures using Apache Kafka.
• Work within Maven multi-module projects and contribute to technical design and architecture decisions.
• Build high-quality, maintainable code supported by automated testing, CI/CD, and Git-based workflows using Azure DevOps.
• Work with Docker and Kubernetes, with GitOps practices using ArgoCD.
• Contribute to secure authorization and identity solutions using OAuth2/OIDC and, where applicable, OPA/OPAL.
• Collaborate in an Agile/Scrum environment and share knowledge with fellow engineers.
• Contribute to impactful solutions used by healthcare professionals.
• Work alongside product owners, analysts, and fellow engineers.
• Take ownership of work and actively contribute to technical discussions.
• Help shape scalable, secure, and reliable systems.

Connaissances

Java Development

Spring Boot 3.x

REST API Design

Microservices Architecture

Docker & Kubernetes

CI/CD

OAuth2/OIDC

SQL

English Communication

Collaboration

Outils

Azure DevOps

Docker

Kubernetes

Git

ArgoCD

Description du poste

• Develop and maintain applications and microservices using Java and Spring Boot 3.x


• Design REST APIs, event-driven services, and scalable microservice architectures using Apache Kafka


• Work within Maven multi-module projects and contribute to technical design and architecture decisions


• Build high-quality, maintainable code supported by automated testing, CI/CD, and Git-based workflows using Azure DevOps


• Work with Docker and Kubernetes, with GitOps practices using ArgoCD


• Contribute to secure authorization and identity solutions using OAuth2/OIDC and, where applicable, OPA/OPAL


• Collaborate in an Agile/Scrum environment and share knowledge with fellow engineers


• Contribute to impactful solutions used by healthcare professionals


• Work alongside product owners, analysts, and fellow engineers


• Take ownership of work and actively contribute to technical discussions


• Help shape scalable, secure, and reliable systems

Requirements

• Strong experience with Java and Spring Boot 3.x


• Solid experience with REST APIs, microservices, Maven multi-module projects, and Apache Kafka


• Proficiency with AI-assisted development tooling


• Experience with Docker, Kubernetes, Git, automated testing, CI/CD, and Azure DevOps pipelines


• Strong plus: OPA/OPAL, ArgoCD, OAuth2/OIDC, IAM, and multi-tenancy


• Strong plus: MariaDB, SQL, and Flyway migrations


• Strong plus: experience with healthcare integrations, such as eHealth, RIZIV, and HL7/FHIR


• Ability to translate functional requirements into clear technical solutions


• Comfortable communicating in English


• French is a plus


• Willingness to share knowledge and contribute to a collaborative engineering culture

Core Competencies

Demonstrates expertise in developing and maintaining applications and microservices using Java and Spring Boot, with a strong focus on designing REST APIs and scalable architectures. Proficient in CI/CD practices, automated testing, and collaboration within Agile/Scrum environments, particularly in healthcare integrations.

Highest-signal resume keywords

• Java Development


• Spring Boot 3.x


• REST API Design


• Microservices Architecture


• Docker and Kubernetes

ATS Optimization Keywords

Hard Skills

• Java


• Spring Boot 3.x


• REST APIs


• Microservices


• Apache Kafka


• Maven


• Automated Testing


• CI/CD


• OAuth2/OIDC


• SQL

Soft Skills

• Collaboration


• Knowledge Sharing


• Communication

Industry Keywords

• Healthcare Integrations


• EHealth


• RIZIV


• HL7


• FHIR

Tools & Technologies

• Azure DevOps


• Docker


• Kubernetes


• Git


• ArgoCD