XS Solutions

XS Solutions SRL

Senior software craftsmanship. Extra small structure, no shortage of experience.

Freelance senior application developer with 25+ years building web platforms — from European Commission systems to SaaS products used by major media brands.

Email me Call +32 475 38 67 64
Xavier Lannoye

About

I'm Xavier Lannoye, a senior application developer based in Belgium. For more than 25 years I've been designing, building and maintaining business-critical web applications — from Java/JEE systems for the European Commission to the ColdFusion, React and Node.js microservices behind Qualifio's SaaS engagement platform, used by some of the biggest media groups and brands. Since 2025, I run XS Solutions independently, currently on assignment with Leonardo for the European institutions.

XS Solutions is intentionally small: a one-person company built for direct, no-nonsense collaboration. Small in structure — but nothing small about the experience, the standards, or the commitment behind every project.

Outside of code, I'm usually on a padel court, behind a camera, or at a poker table.

Skills

Languages & frameworks

  • Java
  • JEE / EJB
  • ColdFusion
  • Grails
  • React
  • Angular
  • Node.js
  • JSF
  • Struts
  • PowerBuilder

Databases

  • Oracle
  • PL/SQL
  • Microsoft SQL Server
  • PostgreSQL

Architecture & APIs

  • REST
  • Microservices
  • Web application development

Tools & ecosystem

  • Atlassian (Jira, Confluence, Crowd)
  • WebLogic
  • XML

Experience

  1. 2025 — present

    XS Solutions, via Leonardo — Senior Application Developer

    Freelance senior application developer, currently on assignment with Leonardo for the European institutions.

  2. 2015 — 2025

    Qualifio, Louvain-la-Neuve — Senior Application Developer

    Developed and maintained the ColdFusion-based back- and front-office of Qualifio Engage, a SaaS platform that helps major brands and media groups engage their audiences — within a React / Node.js microservices environment.

  3. 2000 — 2015

    Atos, Brussels — Consultant, Senior Application Developer

    Fifteen years of consulting and development across projects of every scale, including long-term engagements for the European Commission and BeTV.

  4. 1999 — 2000

    Crédit Agricole, Brussels — Application Developer

    Maintenance of a PowerBuilder application used to evaluate credit allocation risk.

Selected projects

2015 — 2025

Qualifio Engage

A SaaS platform enabling large brands and media groups to engage their audiences.

ColdFusion · React · Node.js · REST · Microservices · MSSQL · PostgreSQL

2008

European Commission — CITnet, Atlassian integration

One-click Atlassian project setup, providing a common way to start a development project at DIGIT — a complete Jira / Confluence / Crowd configuration, completed by an in-house set of connectors.

Grails · Atlassian

2004

BeTV

Java development allowing decoder orders to be managed by subcontractors.

Java · XML · Jdom

2005

ONSS — DMFA

Business layer of a J2EE application, using EJBs and DAOs to access an Oracle database.

Java · EJB · Oracle PL/SQL · BEA WebLogic

25 years, 15+ projects across European institutions, media and finance — the full list is available on request.

Education

Computer Science graduate — E.P.F.C., Brussels (1997 – 1999)

Ongoing training throughout my career: Angular, JAX-RS, Grails, JEE6, and conferences such as Javapolis and Spring One.

Languages

  • French — native
  • English — advanced
  • Dutch — advanced

Get in touch

No forms, no funnels — just reach out directly.

+32 475 38 67 64 info@xssolutionssrl.be