O
OPTIMUS IT SERVICES
Java Developer
Skills
DockerJavaMicroservicesSpring BootIBM CloudElasticsearchKubernetes
3 days ago
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Important information
Contract type:
Permanent
Location:
Brussels, Belgium
Work mode:
Onsite
Published on:
24 October 2026
What they need
Key Responsibilities
- Design, develop, test and integrate software components within an Agile team, delivering valuable product increments at the end of each sprint.
- Contribute to sprint backlog completion by collaborating across analysis, design, development, testing and integration activities.
- Develop and maintain Java applications using Spring Boot, microservices architecture, Docker and Kubernetes.
- Apply cloud development practices and ensure solutions align with architectural standards, security procedures and development guidelines.
- Work with infrastructure components, including operating systems, networking, databases and middleware.
- Collaborate closely with team members, share knowledge and communicate effectively to achieve squad objectives.
- Promote continuous improvement in development practices, delivery speed and operational quality while adhering to Agile and Scrum values.
Experience Required
- At least 3 years of relevant professional experience in software development.
- Mandatory expertise in Java and Spring Boot , with experience in Docker, Kubernetes, microservices and cloud development .
- Excellent understanding of IT architecture, including hardware, operating systems, networking, databases and middleware.
- Knowledge of development methods, standards, security procedures and development tools.
- Mandatory knowledge of Agile methodology and the ability to collaborate effectively within a Scrum team.
- Strong analytical, communication and teamwork skills, with a commitment to continuous improvement and squad objectives.
- English is mandatory , as it is used in meetings and all documentation.
- French is used for day-to-day communication in the workplace. Dutch is a nice-to-have.
- Working arrangement: 50% onsite and 50% homeworking .
Nice to have:
- Integration experience involving distributed systems, mainframe technologies and infrastructure components.
- Cloud development experience on IBM Cloud – DMZR.
- Knowledge of KESMA and Elasticsearch.
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