Freelancer profile translated to English.

Description

Unix/Linux Systems Consultant specializing in the administration, security, and automation of critical infrastructures. I assist my clients in making their environments reliable, compliant, and modern.

Expert in hardening RHEL and Debian environments according to ANSSI recommendations and CIS benchmarks, I design and deploy effective remediation strategies to bring systems into compliance, reduce their attack surface, and enhance their resilience. Industrialization with Ansible is at the core of my approach: I transform manual procedures into idempotent, reproducible, and versioned playbooks, ensuring consistency and time savings across the entire infrastructure.

I also know how to automate tasks using Bash or Python scripts.

Proficient with major virtualization solutions (VMware, Proxmox, Nutanix), I ensure operational maintenance (MCO) and position myself as a guarantor of production: availability, stability, and performance of infrastructures. My background includes managing infrastructure migration projects and continuously improving production through automation of procedures: production deployments, security updates, version upgrades, and application deployments.

I also set up and automate infrastructure monitoring: deploying probes via Ansible, scripts, API, centralizing metrics and alerts, dashboards, and relevant thresholds to facilitate early incident detection and service quality.

Rigorous, autonomous, and results-oriented, I appreciate teamwork and collaboration with the various project stakeholders (DevOps, security - CISO, operations, business, Infra) to deliver reliable, secure, and sustainable solutions.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Cergy-Pontoise (up to 30km), Cergy-Pontoise (up to 30km)

SOCIÉTÉ – LAPOSTE TELECOM (Groupe Bouygues Telecom)
Linux Systems Consultant – Automation & Hardening
TELECOMMUNICATIONS
June 2024 - January 2026 (1 year and 7 months)
Chaville, France
▸ Automated hardening of RHEL VM and physical servers using Ansible – reduced compliance time (created Ansible roles to apply hardening).
▸ Implemented an OS automation chain: Gitea, Ansible Tower
▸ Automated deployment of security tools validated by the CISO across the entire infrastructure
▸ Developed Python and Bash scripts for automating recurring operational tasks
▸ Led IT projects: technical scoping, production deployment, documentation, project presentation
▸ Operational maintenance (MCO) of Linux servers and technical documentation writing
Environment: Linux RHEL, Ansible, Ansible Tower, Python, Bash, VMware, Git
Linux Ansible Tower VMware vSphere Git Hardening
FORMATEUR ECOLE ESIEE-IT
Training Consultant / Instructor Systems & Networks
EDUCATION AND E-LEARNING
September 2022 - June 2024 (1 year and 9 months)
Cergy-Pontoise, France
Trained 2 BTS SISR classes (44 students) in the fundamentals of Windows and Linux systems and network technologies. Designed and created all training materials: theoretical courses, practical exercises (TP), guided exercises (TD), and support sheets adapted to student levels. Implemented continuous assessment with detailed feedback on submitted work, along with rigorous and documented monitoring of success rates. Constantly adapted teaching methods to ensure student progress and achievement of learning objectives.
Network Administration System Administration Training Windows Server BCP/DRP
SOCIÉTÉ – MANUTAN
Systems Security Consultant
LOGISTICS AND SUPPLY CHAIN
March 2022 - March 2023 (1 year)
Gonesse, France
Linux –
▸ Automated security updates on RHEL server fleet using Ansible
▸ Created Python tools in a Docker container to control Nutanix and Tanium APIs
▸ Developed playbooks for managing Nutanix VMs (API integration)
▸ Implemented a complete DevOps chain: GitLab CI, Ansible Tower, Red Hat Satellite
▸ Integrated Tanium API for centralized security patching management
▸ Participated in vulnerability remediation in coordination with the SOC/Security team
Environment: Linux CentOS, Ansible, Ansible Tower, Python, Nutanix, Tanium, OpenShift/Kubernetes, Docker, Git
Linux Ansible Tower DevOps Nutanix Tanium