HCI Sr. Compute Engineer (Red Hat OpenShift

Stefanini Group is seeking a Senior Compute Engineer specialised in Red Hat Open Shift to strengthen our Compute Operations team and provide Level 3 (L3) expert support for enterprise customers running critical workloads on container and virtualization platforms. This role is a key technical position focused on day-to-day operations, stability, and continuous improvement of Open Shift-based platforms. The engineer will act as the highest escalation point for complex incidents and problems, support platform lifecycle activities (upgrades, patching, performance tuning), and contribute to platform modernization initiatives – including VMware-to-Open Shift virtualization transformation programs.

The ideal candidate combines strong troubleshooting skills, deep infrastructure understanding, and hands‑on Open Shift expertise, with the ability to work in a structured operational environment (ITIL/managed services), while also supporting automation and standardisation.

• Act as the L3 escalation point for complex technical issues related to:
• Red Hat Open Shift clusters (control plane, worker nodes, networking, storage, authentication)
• Open Shift Virtualization (Kube Virt) and VM-based workloads hosted on Open Shift
• Linux OS level issues impacting cluster stability or workloads.

• Own and drive resolution of:
• Major Incidents (P1/P2) with deep technical investigation and rapid recovery focus
• Recurring incidents through Problem Management (root cause analysis and permanent fixes).
• Lead deep troubleshooting activities:
• cluster degradation, node failures, API instability, etcd performance issues
• networking issues (ingress, routes, DNS, CNI, service connectivity)
• storage issues (persistent volumes, performance bottlenecks, CSI failures)
• workload failures (pods, operators, deployments, stateful applications).
• Provide clear technical updates during incidents, including impact assessment, recovery plan / workaround, risks and next steps.

• Plan and execute Open Shift lifecycle activities such as version upgrades (cluster upgrades and operator upgrades), patching and security hardening and certificate management and renewal processes.
• Validate platform readiness before changes: capacity, compatibility, performance, known issues.
• Maintain high availability and resilience: backup/restore strategy support (including etcd backup practices), disaster recovery readiness and operational runbooks.
• Ensure operational compliance with defined maintenance windows and change governance.

• Support enterprise modernization initiatives involving migration from traditional virtualization platforms (VMware) to Open Shift Virtualization

• Contribute to:
• migration approach definition and technical design support
• workload onboarding, validation, and stabilization on Open Shift
• performance tuning and operational model definition for VM-based workloads on Open Shift.
• Ensure production‑grade operational readiness: monitoring, alerting, backup, patching and support model aligned with managed services standards.

• Develop and maintain operational documentation, including troubleshooting guides, standard operating procedures (SOPs), build standards and reference architectures, operational runbooks for recurring tasks.
• Support automation initiatives using tools such as:
  Ansible / Automation Platform (preferred), Git Ops practices (ArgoCD) where applicable and scripting (Bash / Python) to reduce manual operations.
• Proactively identify improvements to increase platform stability, recovery speed (MTT), repeatability and reduction of human error.

• Support and improve observability across the platform, including:
• Open Shift monitoring stack (Prometheus / Alert manager / Grafana)
• log management (e.g., EFK / Loki or enterprise logging platforms).
• Troubleshoot performance issues related to compute resource constraints, scheduling and resource requests/limits and cluster scaling and…