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Senior Linux Infrastructure Consultant (RHEL, HA, Kubernetes)

OPUS IT SERVICES PTE LTD

singapore, singapore, Singapore Full-time July 26, 2026
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Vacancy Description

Contract - 1 Year (Yearly renewal)
Completion Bonus: 1 month

Key Requirements
  • 3-5 years of hands-on experience in RHEL (Red Hat Enterprise Linux) administration
  • Experience in High Availability (HA) clusters (e.g. Pacemaker/Corosync), including failover testing
  • Strong troubleshooting skills in:
  • OS performance (CPU, memory, I/O)
  • Networking (DNS, routing)
  • Storage (LVM, multipath)
  • System services & logs
  • Hands-on experience with Kubernetes (K8s) :
  • kubectl, pods, deployments, services, ingress
  • Troubleshooting (networking, DNS, scheduling)
  • Knowledge of Linux networking fundamentals (TCP/IP, firewall, TLS/certificates)
  • Experience in backup/restore and disaster recovery (DR) support
Key Responsibilities 1. RHEL Administration
  • Build...

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