Job description

We are looking for Senior Linux System Administrators with strong hands-on experience in Red Hat Enterprise Linux (RHEL) and Kubernetes to administer and support the infrastructure underpinning an HPC environment.
The role focuses on system reliability, security, performance, automation, and availability .
Key Responsibilities Administer and maintain RHEL/Linux servers and HPC compute nodes .
Install, configure, patch, upgrade, and troubleshoot Linux operating systems .
Manage and support Kubernetes clusters, nodes, and workloads .
Perform Linux performance tuning, system hardening, and troubleshooting .
Monitor system health, capacity, performance, and availability .
Automate infrastructure administration using Ansible, Shell scripting, Python , or similar tools.
Support integration between compute, storage, networking, Kubernetes, and HPC platforms .
Troubleshoot complex Linux, Kubernetes, and infrastructure issues.
Implement security best practices across Linux and Kubernetes environments.
Support incident resolution, root-cause analysis, and preventive actions.
Maintain system configurations, technical documentation, and operational procedures.
Strong hands-on experience as a Linux System Administrator / Linux Engineer / RHEL Administrator .
Expert-level administration of Red Hat Enterprise Linux (RHEL) .
Strong experience with Kubernetes administration and cluster management .
Experience supporting HPC environments / compute clusters is highly preferred.
Strong knowledge of: RHEL / Linux Kubernetes Linux performance tuning Linux patching and hardening System monitoring Troubleshooting Capacity management Strong automation/scripting experience with Ansible, Shell/Bash, Python , etc.
Experience integrating compute, storage, and networking infrastructure .
RHCE – Red Hat Certified Engineer: Mandatory CKA – Certified Kubernetes Administrator: Preferred