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Alex MonnerieAM

Alex Monnerie

⭐️ DevOps, Platform, GitOps, Cloud, Terraform

€650/day
Nantes, FR
3-7 years

Average response time: 24 hours

Freelancer profile translated to English.
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About Alex

🎯 Freelance DevOps & Platform Engineerwith over 7 years of experience**, certified **Azure DevOps Expertand HashiCorpTerraformAssociate. I help companies modernize and automate Cloud & DevOps platforms that run their products, to enhance performance, reliability, security, and agility.

Specializing in containerization, automation, and observability, I work on platform migration, transformation, and optimization projects.

⚙️ Kubernetes, OpenShift, Docker, Rancher, Istio
🚀 GitOps, ArgoCD, Argo Rollouts, Helm, Kustomize
✅ CI/CD, GitLab CI, Jenkins, SonarQube, Harbor
🔩 Infrastructure as Code, Terraform, Ansible
🌐 Microsoft Azure, Google Cloud Platform, OVH
📊 OpenTelemetry, Grafana Stack (Alloy, Mimir, Loki), Datadog

🛡️ Chainguard, distroless, Trivy, SBOM, Gitleaks
🔐 Keycloak, OpenBao (Vault), External Secrets

Currently on a mission for **Yousign**, within the Developer Experience squad, I am participating in the transformation and migration of the Rancher/Compose platform to Kubernetes, implementing production readiness standards (testing, performance, observability) and equipping teams through GitOps pipelines (GitLab, ArgoCD, Helm, Kustomize).

Previously forSigma**, I first built the group's **software factoryon Azure in IaC (Terraform, AKS, ArgoCD, SonarQube, Keycloak) to improve productivity, security, and deployment quality. I then joined thePublic Cloud(Azure, AWS) and Private Cloud (OpenShift) platform management team, under production and HDS regulatory constraints, Datadog supervision, MCO, CI/CD pipeline optimization.

Previously for **Nickel**, I was a key player in the transformation of the product platform (WS .NET, IIS, OCR) and the migration of the IS to a new host. I then worked on continuous improvement projects (Kubernetes, ArgoCD, Istio).
  • French

    Native or bilingual

  • English

    Basic

Can work on-site
Nantes (up to 50km), Angers (up to 20km), Rennes (up to 20km)

Experience

  • Yousign
    Platform Engineer
    November 2025 - Today (7 months)
    Transformation and migration of the Yousign platform, from a Rancher/Docker Compose stack to Kubernetes, integrating production readiness standards, within the Developer Experience squad.
    • Migration of applications and services to Kubernetes: analysis, adaptation, and team support
    • Implementation of standards (testing, performance, observability, security)
    • Structuring of environments with automated CI/CD pipelines (GitLab, GitOps)
    • Deployment and optimization of Kubernetes workloads (Helm, Kustomize)
    • Continuous improvement of the platform's infrastructure and performance
    • Implementation of observability with Datadog (dashboards, monitors, SLO)
    • Adoption of good security and image optimization practices (Chainguard, distroless)
    Kubernetes Kustomize Helm Docker Datadog
  • Sigma
    DevOps Cloud Engineer
    TELECOMMUNICATIONS
    October 2024 - November 2025 (1 year and 1 month)
    Management of Public Cloud (Azure, AWS) and Private Cloud (OpenShift Redhat) infrastructures, ensuring production requirements (high availability, SLA compliance) and regulatory compliance (HDS).
    • Support for teams and clients
    • Operational maintenance (MCO) of platforms: updates and component migration, integration of new features, and incident resolution
    • Proactive service monitoring with Datadog, including probe deployment, alert configuration, and custom dashboard creation
    • CI/CD pipeline optimization
    Microsoft Azure OpenShift MCO Cloud computing Cloud Architect
  • Sigma
    DevOps Cloud Engineer (Software Factory)
    SOFTWARE PUBLISHING
    February 2024 - September 2024 (8 months)
    Nantes, France
    Implementation of the software factory (tools, processes, and best practices) to improve productivity, security, and deployment of development projects.
    • Construction of the platform on Azure in IaC with Terraform and Ansible (Application Gateway, WAF, DNS, AKS, Key Vault, Storage, Bastion, …)
    • Installation and provision of GitLab Runners (Kubernetes executor)
    • Development of CI (NodeJS, Maven, Docker) and CD (Openshift, Azure App Service) pipelines
    • Deployment of SonarQube, ArgoCD, Keycloak components on a private AKS cluster
    • Implementation of the observability stack with Mimir, Loki, and Grafana
    • Agile organization, continuous improvement, and DevOps best practices (Conventional commits, Semver, Git Flow, Github Flow)
    Microsoft Azure Kubernetes Terraform CI/CD DevOps

Recommendations

FU
EN
IM
Former user and 2 other people have recommended Alex

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Education

  • BAC+4, Administration Systèmes Réseaux
    ENI Ecole Informatique
    2020
    BAC+4, Administration Systèmes Réseaux
  • BTS, Systèmes Numériques option Informatique et Réseaux
    Institution Immaculée Conception
    2017
    BTS, Systèmes Numériques option Informatique et Réseaux

Certifications

  • DevOps Engineer Expert (AZ-400)
    Microsoft
    2023
    DevOps CI/CD Microsoft Azure Azure DevOps
  • HashiCorp Terraform Associate
    HashiCorp
    2024
    Infrastructure as code Terraform Infrastructure Terraform Cloud

Skill set

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