RedHat OpenShift System Administrator

Sword Group

Geneva, Switzerland

7 days ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Languages

English, French

Experience level

Intermediate

Geneva, Switzerland

IBM AIX

Databases

Database Theory

Disk Arrays

NetBackup

OpenID

Openshift

Role-Based Access Control

Red Hat Enterprise Linux - RHEL

Azure

Security Assertion Markup Language (SAML)

Solaris (Operating System)

TCP/IP

Transmission Control Protocol (TCP)

Virtual Local Area Networks

Ceph

Load Balancing

Okta

Istio

System Availability

Kubernetes

Bare Metal

Veeam

Commvault

We are opening a position for a Technical Specialist / RedHat OpenShift System Administrator for our client based in Geneva.

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

Do you have experience in TCP?, * 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