# Rebuild and secure an information system across six sites

Adrien Murillo — Murillo Consulting

Social-care organization with more than 50 servers, a four-person operations team and continuity constraints.

## Role
Information system modernization and leadership of a four-person operations team.

## Challenge
Modernize infrastructure and strengthen security without disrupting a multi-site information system.

## Actions
Rebuilt Linux, Windows and VMware environments and improved access, backups and monitoring. Formalized operations and MCS procedures and led a four-person team.

## Outcome
Infrastructure and security practices aligned across six sites, with stronger continuity and operational ownership.

- 6 sites
- More than 50 servers
- Four-person team
- Monitoring
- Operations and security procedures

Reworded professional experience. Sensitive architecture and operational details are not published. No organizational endorsement is implied.



## Navigation
- [Independent engineer and trainer.](/en/profil)
- [Engineering services.](/en/services)
- [Selected work.](/en/realisations)
- [Open-source projects.](/en/projets)
- [Guides to put into practice.](/en/ressources)
- [Let’s discuss your project.](/en/contact)
- [From scope to handover.](/en/approche)
- [Real contexts. Real constraints.](/en/secteurs)
- [Learn by making decisions.](/en/lab)
- [Legal notice](/en/mentions-legales)
- [Privacy](/en/confidentialite)
- [Train your teams. Through practice.](/en/formation)

[Contact](mailto:contact@adrien-murillo.com)