03/02/2026 updated
100 % available
Red Hat OpenShift & Cloud Native Consultant
Colombes, France
Only remote
Networking Engineer - Faculty of sciences of TunisKubernetes SecurityC (Programming Language)Java (Programming Language)JavaScriptPHPApplication Programming Interfaces (APIs)Amazon Web ServicesApache HTTP ServerApache TomcatServer ApplicationAutomationMicrosoft AzureBackup DevicesUnixCloud Computing
DevOps & Automation:
Expert in designing and implementing CI/CD pipelines with GitLab CI, Jenkins, ArgoCD, and OpenShift Pipelines. Skilled in containerization and image lifecycle management using Podman, Buildah, Skopeo, Docker, CRI-O, and runc. Experienced with configuration management and automation using Ansible (Tower/AAP), Puppet, Terraform, and Vagrant. Familiar with observability and monitoring stacks including Prometheus, Grafana, Alertmanager, as well as Kafka for streaming.
Kubernetes & Cloud-Native:
Advanced expertise in Kubernetes (Certified Kubernetes Administrator & Application Developer) and Red Hat OpenShift (v3.x & v4.x). Strong background in GitOps practices with Argo CD, Helm, and Kustomize. Proficient with service mesh (Istio), policy management (Kyverno, RBAC-manager), secrets management (external-secret, sealed-secret), and identity & access management (Keycloak).
Cloud & Infrastructure:
Hands-on experience with multi-cloud platforms including AWS, Azure, GCP, and private cloud environments using OpenStack. Proficient in provisioning, scaling, and maintaining infrastructure through automation. Skilled in networking concepts (TCP/IP, routing, Cisco switching, SDN), load balancing (HAProxy, MetalLB, Nginx Controller), and high availability (Pacemaker, iSCSI).
Virtualization & Systems:
Extensive experience with Red Hat Virtualization, oVirt, KVM, VMware, and Xen. Administration of Linux systems (RHEL 6/7/8), Debian, UNIX, and Windows Server. Strong background in system services such as DNS, DHCP, LDAP, NFS, Apache, Nginx, Samba, FTP, backup, and mail services.
Security & Compliance:
Skilled in firewalls (Netfilter/Iptables, Firewalld), SELinux, server hardening, and integrating with Fortinet & Palo Alto security devices. Experience automating firewall management and metrics collection through APIs.
Programming & Development:
Development experience in C, Java, PL/SQL, PHP, Python, and JavaScript. Familiar with frameworks like Symfony and Spring Boot, and building SOAP/RESTful web services.
Databases & Middleware:
Knowledge of Oracle, MySQL, PostgreSQL databases, and administration of Red Hat JBoss, Apache Tomcat, and GlassFish application servers.
Experience
Professional experience10+ years
Freelancer since2015
Languages
EnglishFluentFrenchNative speaker
Project history
Design and build of Kubernetes-based products for various Data Services. Deploying Kubernetes clusters for HPC, BigData, and SaaS Platform projects. Migration of existing K8s clusters from 1.14 to 1.30.
Worked with multiple clients including Docaposte, Servier, CBUAE, BSS OMAN, and Česká Spořitelna on OpenShift cluster design, deployment, and support. Projects involved upgrading OCP clusters, troubleshooting technical issues, and implementing Ansible automation.
Managed configuration with Red Hat Ansible at large scale. Configured networking, deployed applications, and set up Kubernetes clusters. Built CI/CD pipelines and custom container images.