Nous ouvrons un poste de Spécialiste technique / Admin Système RedHat OpenShift pour notre client basé à Genève
Responsabilités
* Design, deploy, and maintain Red Hat OpenShift platforms
* Adapt and optimize OpenShift clusters (filesystem management, access control, quotas, policies) on underlying Unix/Linux systems.
* Install, migrate, and operate Unix/Linux environments according to our standards and processes.
* Plan and manage system storage and related capacity (including persistence of OpenShift volumes).
* Ensure security, resilience, and compliance across environments.
* Participate in on-call rotations.
Qualifications
* Proven experience in the banking or financial sector
* Minimum 3 years as Unix/Linux systems administrator
* Proven experience deploying and operating OpenShift or Kubernetes in production
* Knowledge of major Unix/Linux distributions: IBM AIX, Red Hat Enterprise Linux (RHEL), Solaris.
* Understanding of storage and network technologies: memory, disk arrays, NAS/SAN, networking (TCP/IP, VLAN, load balancing). Understanding of database concepts: maintenance, recovery, failover, high availability.
* Understanding of routine maintenance, recovery, and handling failover of a Database
* Familiarity with at least one enterprise backup solution (e.g., NetBackup, Commvault, Veeam). Specific competencies
* Install, configure, and maintain Red Hat OpenShift clusters (IPI/UPI, bare metal/virtualized/cloud).
* Mastery of Kubernetes/OpenShift concepts: projects, routes, services, deployments, statefulsets, operators, CRD, RBAC, SCC, NetworkPolicy.
* OpenShift lifecycle management: controlled upgrades, patches, channels, image mirroring, oc CLI.
* Security and compliance: Configuration of RBAC, SCC, PSa/PSP equivalents, secrets, encryption. OIDC/SAML integration with IdPs (e.g., Keycloak, Azure AD). Policies and admission control (Gatekeeper/OPA), auditing, hardening.
* OpenShift networking: CNI (OpenShiftSDN/OVNK), ingress/egress, routes, load balancers, service mesh (Istio/Service Mesh).
* Storage and persistence: Provisioning PersistentVolume/PersistentVolumeClaim, StorageClasses, CSI drivers, NAS/SAN integration (NFS, Ceph, …).
* Fluent in French and English
* Swiss residence is mandatory
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