Senior Software Engineer - Java / Spring Boot

At Corilus, we believe technology only creates real value when it is combined with strong collaboration and a relentless focus on quality. Building great software is not just about writing code, it is about working closely with others, understanding real user needs, and delivering solutions that truly make a difference.

As a Senior Software Engineer Java / Spring Boot, you play a key role in a complex, challenging, and people-focused environment. You contribute to the development of impactful solutions used by healthcare professionals, working alongside product owners, analysts, and fellow engineers. You take ownership of your work, actively contribute to technical discussions, and help shape scalable, secure, and reliable systems.

Challenge

• 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.

• 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.

• An attractive salary package aligned with your experience and responsibilities, including a company car + fuel card, hospitalization insurance, group insurance, and additional ambulatory care insurance.
• Hybrid working, combining flexibility from home with collaboration at the office in Diegem.

Corilus is the leading provider of digital solutions for healthcare professionals in Belgium, with over 30 years of experience building software for doctors, pharmacists, nurses, and care coordinators. Today, we serve more than 70,000 healthcare professionals.

We are now at an inflection point. Following the acquisition of Sofia Dévelopement in France and backed by PSG and Rivean Capital, we are consolidating our portfolio into a unified, AI-native platform that will redefine clinical software across Belgium and France.

We are looking for builders - people who see the gap between what healthcare software is today and what it could be, and who want to close it.