Xavier Calland
Directeur Technique at Developers Group Dijon
Boncourt-le-Bois, Bourgogne-Franche-Comté, France
Summary
👤
Senior🎓
Top SchoolXavier Calland is a seasoned Technical Director with 15 years of experience leading software delivery and architecture at Atol Conseils et Développements, where he progressed from project manager to director. Based in Bourgogne-Franche-Comté, he combines hands-on backend expertise in Java, SQL and Docker with frontend familiarity in JavaScript and React, and is fluent in code review and Git-based workflows. He contributes to public health open-source work, notably adding backend features and Docker-based dev setup to the SORMAS outbreak management platform, showing a commitment to impactful, production-grade systems. As President of Developers Group Dijon, he also fosters local tech community growth, blending technical stewardship with mentoring and coordination. His academic foundation (M2 in Informatique) underpins a pragmatic approach to building maintainable, secure software for regulated and mission-critical domains.
15 years of coding experience
Master 2 (M2), Informatics, Master 2 (M2), Informatics at Université Jean Monnet Saint-EtienneLicence, Computer Science, Licence, Computer Science at Université de BourgogneMaitrise, Informatique, Maitrise, Informatique at Université de bouDUT, Computer Science, DUT, Computer Science at IUT Dijon-Auxerre
Github Skills (13)
javas10
event-manager10
eventbus10
docker10
backend10
event-handling10
back-end-development10
dockers10
java10
postgresql9
api8
apidoc8
database-design8
Programming languages (10)
Github contributions (5)
SORMAS-Foundation/SORMAS-Project
Jun 2020 - Nov 2020
SORMAS (Surveillance, Outbreak Response Management and Analysis System) is an early warning and management system to fight the spread of infectious diseases.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 reviews, 58 commits, 16 PRs in 5 months
Contributions summary:Xavier primarily contributed to the back-end functionality of the SORMAS project. They added a script for setting up a development server using Docker, focusing on Payara configuration and database setup using a Docker image. They also introduced features related to actions within the event management system, including database schema changes, entity and DTO creation, and the implementation of a basic facade and service layer, along with user rights management. Furthermore, the user contributed to enhancements such as follow-up fields in the case directory, adding features related to visit handling and export, and implementing a filter for the event actions, indicating focus on case management and event processing.
management-systemsystem-analysisoutbreakcontact-tracingsurveillance
developers-group-dijon/devfest-site
Feb 2024 - Apr 2025
Contributions:6 PRs, 139 pushes, 20 branches in 1 year 2 months
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