Freelancer profile translated to English.
Back to original languageAbout Christophe
Expert in Linux environments with solid experience in IT management and managed services, I evolved from a critical operations role to high-level architecture and automation (N3).
My career at IDEA, then my rise within Céleste, allowed me to master the entire infrastructure lifecycle: from field support to the design of resilient and secure Cloud architectures.
- Infrastructure as Code (IaC): Terraform, Ansible, Saltstack.
- Observability: Icinga, Prometheus, Grafana.
- Security & R&D: Evaluation of SecOps solutions (WAF BunkerWeb).
- Cloud & Virtualization: AWS, VMware, Proxmox.
French
Native or bilingual
English
Fluent
Can work on-site
Saint-Herblain (up to 50km)
Experience
- CELESTELinux System Administrator N3 & ArchitectTECHMarch 2024 - Today (2 years and 5 months)Saint-Herblain, FranceTechnical referent for critical infrastructures and technological innovation.Strategic SecOps Project: Audit, stress testing, and POC of a WAF solution for integration into the managed services catalog.Automation & Control: Deployment and configuration of Semaphore UI. Industrialization of infrastructures via Terraform, Ansible, and Saltstack.Observability & Metrology: Administration of the Prometheus / Grafana stack and maintenance of the Icinga supervision solution.Architecture & Consulting: Design of Public Cloud solutions on AWS and advanced administration of VMware and Proxmox environments.DevOps: Implementation and optimization of GitLab CI pipelines. / CodePipelineExpertise: Last-level support and technical mentoring of N1 and N2 teams.
- CelesteBuild / Deployment EngineerTECHSeptember 2021 - March 2024 (2 years and 6 months)Saint-Herblain, FranceTechnical interface between sales and production.Provisioning: Construction of custom client environments in collaboration with Lead Techs.Standardization: Creation of deployment templates to ensure infrastructure scalability and repeatability.Maintenance & Availability: Weekly on-call rotations (1 week/2 months): 24/7 intervention to ensure service continuity for client infrastructures.
- CELESTEOperations Technician N2 – Cloud Managed ServicesTELECOMMUNICATIONSJanuary 2021 - September 2021 (8 months)Nantes, FranceGuardian of production service stability.Support: Resolution of complex incidents on various Linux platforms.Maintenance: Maintenance in operational condition of virtualized and cloud infrastructures.Critical Availability: Weekly on-call rotations (1 week/month): Responsible for the maintenance in operational condition (MCO) of all client production during on-call periods.
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Education
- AWS Certified Solutions Architect – AssociateAWS Certified Solutions Architect – Associate
- System and Network Administrator Training, ITENI ECOLE2009Formation Administrateur Système et Réseau, Informatique
Certifications
- AWS Certified Solutions Architect – AssociateAmazon Web Services