Freelancer profile translated to English.
Back to original languageAbout Omar
Senior DevOps / SRE Engineer, specializing in private Cloud environments, Kubernetes, and advanced automation. I assist French companies and administrations in building, industrializing, and ensuring the reliability of their application, data, and AI platforms.
I work on critical environments where performance, security, and resilience are essential. My expertise covers the entire DevOps cycle: infrastructure design, automation, CI/CD, observability, GitOps, and operations.
Key Skills:
• Kubernetes (RKE2, OpenShift, EKS), administration and optimization
• GitOps: Argo CD, Helm, ApplicationSets
• Automation: Ansible (roles, collections, AWX), Terraform, Packer
• CI/CD: GitLab CI/CD, Jenkins
• Observability: Prometheus, Grafana, Loki/ELK, Dynatrace, K8sGPT
• Docker containerization, security, and hardening
• Private / Public Clouds: OpenStack, Outscale, AWS
• DevSecOps: scans, compliance, secrets management, SLO/SLI/SLA
I have worked for several public institutions (Naval Group, Ministry of Finance, DINUM/DSO) in sensitive contexts requiring rigor and confidentiality.
Eligible for security clearance – French nationality.
I bring an approach focused on reliability, automation, and continuous improvement. I collaborate closely with Dev, Data, Archi, and SecOps teams to build stable, secure, and reproducible environments.
Available for build, run, or architecture missions, on-site or remote.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- Ministère de l'intérieurSREDIGITAL AND ITFebruary 2025 - Today (1 year and 4 months)Paris, FranceMCO / RUN / SLO• Maintenance in operational condition (MCO / run) of legacy applications and containerized applications on OpenShift in the Private Cloud GEN2 (OpenShift)Monitoring & Observability• Deployment of the monitoring stack kube-prometheus-stack (Prometheus Operator, Alertmanager) and Grafana Operator, and setup of dashboards in GitOps mode using the GrafanaDashboard CRD on an RKE2 cluster• Deployment of Elasticsearch, Kibana, and fluentd with OLM (Operator Lifecycle Management) “ClusterLogging” on OpenShift• Deployment of Dynatrace Operator on OpenShift for application and infrastructure monitoringAutomation• Automation of deployments and maintenance of legacy applications using Ansible. • Writing cross-functional Ansible roles for managing AWX, Keycloak, S3, and France Transfert• Integration of playbooks into AWX in GitOps mode using the AWX role• Scheduling of playbooks with Rundeck as part of the VTOM replacement. Participation in DevSecOps (DSO) projects• Development of Terraform scripts for infrastructure provisioning on OpenStack (integration, qualification, and production) using existing modules• Installation of RKE2 clusters with AnsibleDeployment of Argo CD and the CSI-Cinder driver with Ansible.• Deployment with ArgoCD and in GitOps mode of AWX, Prometheus, Grafana, Rundeck, GitLab Operator, GitLab Runner, Nexus, SonarQube, Harbor, Kyverno… •• Deployment of k8sGPT in an integration environment via k8sGPT Operator with an Ollama AI backend and integration with Prometheus, and feasibility study for its coupling with Dynatrace to improve Kubernetes cluster diagnostics and observability.Technical Environment:OpenShift, OpenStack, Kubernetes, RKE2, Argo CD, Helm, Terraform, Packer, Ansible, AWX, Rundeck, Keycloak, S3, Prometheus, Grafana, Dynatrace, Nexus, SonarQube, Harbor, Kyverno, k8sGPT
- Naval Group (La Marine Nationale)DevOps Cloud/SRESeptember 2022 - Today (3 years and 9 months)Development of the CI/CD integration chain• Development of the CI pipeline with a GitOps approach (GitLab CI, Docker, SonarQube, Nexus, Trivy, semantic-release)• Development of the Ansible playbook for CD (Continuous Delivery)• Development of Helm charts and the pipeline for their packaging• Release management (Git) to improve our management of scripts and other branches, and incident management in dev, integration, and UAT environments• Support and guidance for Dev/Ops teams for standardizing deliverables and deployments, and adding new CI/CD related featuresInfrastructure• Development of Terraform scripts for provisioning on the Outscale 3DS Cloud platform• Development of the Ansible playbook for installing Docker, Nginx, NFS, Mongo, Node.js, and Kubernetes…Implementation of monitoring tools• Installation of Prometheus with (Prometheus Operator, Service Monitor…)• Setup of an alerting system with AlertmanagerTechnical Environment: Outscale 3DS, Kubernetes, Helm, Docker, Containerd, Ansible, Terraform, GitLab CI, Nexus, Nginx, Trivy, SonarQube
- DGFiP (Direction générale des Finances Publiques)DevOps Cloud/SREFebruary 2022 - August 2022 (6 months)Development of the CI/CD integration chain• Development of the Ansible playbook for installing (Rancher (RKE2), Containerd, Kubernetes access management, Nexus, HAProxy, Keycloak, Helm, Longhorn, Prometheus, Grafana, InfluxDB…) in a cloud environment as well as on-premise• Development of Terraform scripts for infrastructure provisioning• Development of the pipeline in a GitOps approach• Documentation writingDeployment of components on Kubernetes• Deployment of various components on Kubernetes with Helm3 (GitLab Geo, Harbor, Venezia…)Implementation of infrastructure monitoring tools• Setup of the architecture and installation of infrastructure monitoring tools (Grafana, Prometheus, InfluxDB, Chronograf, Alertmanager, Node Exporter…)Technical Environment: OpenStack, Rancher (RKE2), Longhorn, Kubernetes, Helm, Docker, Containerd, Ansible, Terraform, GitLab CI, Nexus, HAProxy, Keycloak, Python, KVM, Markdown
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Education
- Master of Professional Studies in Information and Systems Sciences, Software Engineering specialization2011Master professionnel Sciences de l'Information et des Systèmes spécialité Génie Logiciel
- Student Engineer in Industrial Engineering and Computer SciencePolytech' Marseille2007Elève Ingénieur en génie industriel et informatique