Description

Ingénieur DevSecOps / Cloud

Spécialisé en infrastructures Kubernetes bare-metal et cloud, avec une forte expertise en GitOps, CI/CD, sécurité et haute disponibilité.

Expérience dans la conception, l’exploitation et le durcissement de clusters Kubernetes en production.

À l’aise dans les environnements critiques, la gestion d’incidents, la reprise après sinistre, et les contextes sensibles / défense.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Brest (up to 50km)

Groupe Asten -
DevSecOps Engineer
DIGITAL AND IT
February 2025 - Today (1 year and 4 months)
Brest, France
• Built and maintained Kubernetes on bare-metal infrastructures (up to 70 nodes) using Kubespray, Cloud-init, Ansible, Terraform
• Operated and upgraded clusters via kubeadm / kubelet (up to v1.34)
• Ingress & service mesh using Envoy Gateway, GatewayAPI, Traefik, Cilium, Calico, Istio
• Implemented GitOps & deployment workflows with ArgoCD, FluxCD, Helm, Kustomize, HelmRelease
• Designed and operated CI/CD pipelines using Gitea, Gitea Actions, GitLab CI/CD
• Implemented secure secrets & configuration management with Vault, External Secrets Operator, SOPS
• Implemented IAM, authentication & SSO with Keycloak
• Deployed and operated observability, logging & analysis stacks: Prometheus, Thanos, Grafana, Loki, Fluentd, Alloy
• Implemented FinOps & cost analysis using OpenCost
• Deployed Kubernetes storage & backup solutions: OpenEBS Mayastor (RWO), Rook-Ceph (RWX)
• Built, hardened and maintained Docker images
• Implemented Kubernetes security, policy enforcement & runtime protection: Kyverno, Gatekeeper, Falco
• Managed TLS, certificates & PKI using cert-manager, x509-Exporter
• Implemented autoscaling & scheduling with Karpenter, HPA, VPA
• Provided platform operations, support, troubleshooting and production analysis
• Debian, Ubuntu, Rocky
Ansible Kubernetes Site Reliability Engineering Cybersécurité Terraform
Marine Nationale
École de Maistrance
DEFENSE AND MILITARY
October 2025 - February 2026 (4 months)
Brest, France
EM - FPE - Formation militaire - CATI - Géopolitique - Anglais - EPMST - EPMSA
Formation initiale des officiers mariniers (sous-officiers de la Marine nationale)
Gestion de projet Management d'équipe Militaire Sécurité Esprit d’équipe
Braincube
Software Engineer
SOFTWARE PUBLISHING
March 2023 - June 2024 (1 year and 3 months)
Issoire, France
• Kubernetes, Docker, IaC (Terraform, Ansible, Helm, FluxCD)
• Multi-cloud: Azure, AWS, GCP
• GitOps: CI/CD pipelines, Git repo maintenance, Helm chart authoring
• Disaster recovery: annual DRP testing + real incident response
• Data center migration & client onboarding (Docker)
• Infrastructure backups: ZFS snapshots, Kopia offsite
• Technical support & software integration for clients
• Bug triage, 8D analysis, Ansible role maintainer
• Observability: Grafana, Prometheus, Loki, Velero
• Scripting & automation: Python, Bash, YAML, SQL
Ansible Docker Linux Kubernetes Grafana

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License CSIA Project Manager in Applied Information Systems
EAF
2020
License CSIA Project Manager in Applied Information Systems
BTS SIO Information Technology Services for Organizations
GFS Chamalières
2019
BTS SIO Information Technology Services for Organizations

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Kilian Hillaire

DevOps Engineer

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