Java/Web Developer

B2B Freelance contract and CDI both option available

Type: Onsite (Telework possible up to 1 day per week, subject to approval.)

Location: Brussels (Empereur)

Context

As part of a contract, we are looking for a Java J2EE Developer to work on development and maintenance projects for critical applications in the Luxembourg public sector.

The mission is part of a long‑term contract representing about 660 man‑days.

Main missions

• Participate in the analysis, design, and development of Java J2EE applications.
• Carry out front‑end and back‑end developments.
• Implement functional and technical evolutions of existing applications.
• Design and maintain XML data flows.
• Develop and maintain XSLT transformations.
• Participate in testing, acceptance, and production phases.
• Produce the associated technical documentation.
• Collaborate with project teams in a demanding and structured environment.

Mandatory technical skills The candidate must demonstrate concrete experience with the following technologies:

• Development: Java J2EE, HTML, CSS, Javascript
• XML technologies: XML, XSD, XSLT
• Specific tool: JWAY FormPublisher

Profile sought

• Education: IT degree Bac+3 minimum or equivalent.
• Languages: French C1 minimum, English B1 minimum.
• Experience: No minimum years required, but CV must clearly demonstrate the required skills through detailed project descriptions.

Mission conditions

• Full‑time assignment.
• Mainly on‑site presence in Luxembourg .
• Telework possible up to 1 day per week, subject to approval.

Mandatory technical test:

• Date: 24 September 2026
• Time: 14:00 – 16:30
• Location: Luxembourg