The Containerization & Virtualization Engineer is responsible for operating, securing, maintaining, and evolving container and Virtualization platforms. This includes Red Hat OpenShift infrastructure (bare-metal and virtualized deployments) and VMware vSphere clusters, Nutanix environments.
The engineer ensures a resilient, scalable, compliant, and observable hybrid platform enabling mission-critical workloads across the institution.
Responsibilities
- OpenShift Node & cluster management:
- Integrate new worker nodes (bare-metal or virtual machines)
- Prepare system configuration, network parameters, and cluster join workflows; Ensure observability, monitoring, and backup integration for new workers
- Replace failed worker or control-plane nodes (fault tolerance)
- Perform patching, upgrades, and lifecycle operations on OpenShift clusters
- Management of OpenShift internal services:
- Manage integration with enterprise Storage systems (e.g., Trident NFS)
- Manage integration with external logging systems (Elastic, Pulse)
- Maintain platform authentication & authorization (Active Directory, RBAC)
- Configure operators and essential components: Trident (NFS Storage), Oadp (backup & restore), Kyverno (policies), Trivy (image security scanning), Elastic agents
- Maintain cluster registry, image policies, and governance rules
- Create and modify OpenShift Projects (namespaces) on request
- Monitoring & alerting:
- Monitor platform logs and events
- Configure and manage alerting rules
- Maintain and enhance platform observability stacks
- TLS & Security management:
- Manage and renew TLS certificates across OpenShift components
- Integrate AD authentication
- Deploy EP TLS certificates and ensure secure communications.
- Infrastructure extensions:
- Add infrastructure nodes (Infra nodes) for dedicated workloads (logging, monitoring...)
- Configure Log Forwarding to Pulse and Elastic
- Cluster deployment:
- Prepare VM, network, Hardware, and Firewall requirements for cluster installation
- Adapt and maintain installation playbooks and deployment scripts
- Collaborate with SAN and network teams during ongoing evolution studies (virtual LUNS, synchronous replication, metro clustering)
- VMware & Nutanix Virtualization Platforms
- Operate, maintain, and optimize VMware vSphere clusters across LAN, Idmz, and Edmz
- Manage Nutanix clusters and associated hypervisors
- Conduct lifecycle operations: patching, upgrades, hotfixes, obsolescence handling
- Manage vCenter, ESXi hosts, vSAN clusters, and SRM/DR architectures
- Implement automation via PowerCLI and vRealize Orchestrator workflows
- Ensure observability and capacity planning via Aria Operations
- Support and implement Disaster Recovery using SRM and Metro Availability
- Collaborate with SAN and network teams (replication, metro clusters, virtual LUNS)
Qualifications
- 4+ years of experience in container platform engineering and infrastructure operations.
- Strong hands-on experience with Red Hat OpenShift in production environments (cluster operations, node lifecycle, Operators, Storage integration, security configuration, logging & monitoring).
- Experience deploying and maintaining Operators, including Storage (Trident), backup (Oadp), policy engines (Kyverno), and security scanners (Trivy).
- Expertise in CI/CD, automation, and Infrastructure-as-Code (Ansible, GitOps workflows, YAML, scripting, pipelines).
- Good knowledge of observability and logging ecosystems (Elastic, OpenShift Monitoring).
- Experience with TLS certificate management, AD/OAuth integration, and security best practices for Kubernetes platforms.
- Competence in handling platform lifecycle operations: patching, upgrades, backups, certificate renewal, disaster recovery concepts.
- Working knowledge of VMware vSphere and Nutanix Virtualization platforms (secondary skillset supporting the underlying infrastructure).
- Hands-on experiences with infrastructure automatization.
Key competencies:
- Containerization: Red Hat OpenShift (Operators, Nodes, OAuth, Storage, Logging)
- Virtualization: VMware vSphere, Nutanix Ahv
- Automation: PowerCLI, Ansible, Orchestrator workflows
- Monitoring & Observability: Aria Operations, OpenShift Monitoring
- Security & Compliance: Kyverno, Trivy, TLS lifecycle, AD integration
- Operational Excellence: lifecycle management, incident response, DR readiness
- Collaboration: Work with Storage, network, Dev, Security Governance and architecture teams
Why cronos group?
We'll propose you:
- An attractive salary package
- A good work-life balance environment
- The assurance of working in cutting-edge technologies in an entrepreneurial spirit.
- The opportunity to develop your skills thanks to tailor-made training courses according to your needs
- A good job in a friendly place
If you wish to integrate a dynamic structure on a human scale while working with the latest technologies, don't wait anymore and join Cronos!
