Senior Linux System Administrator (RHCE & Kubernetes) | NYGCI | Riyadh, Saudi Arabia

Tech Junction Ltd; Riyadh; On-site; SAR 280,000 - 420,000; Full time

Job summary

NYGCI is seeking Senior Linux System Administrators to support mission-critical Linux and HPC environments in Riyadh, Saudi Arabia. The role emphasizes managing RHEL, Kubernetes clusters, and automation to ensure high availability and security.

The candidate will drive performance tuning, patch management, and infrastructure monitoring while collaborating across engineering and operations teams to scale and harden the platform for enterprise workloads.

Qualifications

• Bachelor’s degree in Computer Science, IT, Engineering, or a related discipline.
• RHCE certification mandatory; Kubernetes/HPC administration experience is essential.
• Experience with Red Hat Enterprise Linux environments and HPC clusters.
• Strong scripting and automation capabilities using Ansible, Python, or Shell.

Responsibilities

• Administer and maintain enterprise-scale RHEL environments.
• Manage HPC compute nodes and Kubernetes clusters.
• Implement and optimize automation using Ansible and scripts.
• Ensure security, patching, and performance tuning of Linux systems.
• Collaborate with cross-functional teams to improve platform reliability.

Skills

RHCE

Kubernetes administration

Linux performance tuning

Security hardening

Troubleshooting complex infra

Cross-team collaboration

Automation thinking

Python

Shell scripting

Education

Bachelor’s degree in Computer Science/IT/Engineering

Tools

Ansible

Shell

Python

Kubernetes tooling

Job description

Job Title: Senior Linux System Administrator (RHCE & Kubernetes) | NYGCI | Riyadh, Saudi Arabia

Recruiting Company: NYGCI

Job Location: Riyadh, Saudi Arabia

Job Type: Full-Time

Open Positions: 2 Engineers

Nationality: Open to All Nationalities

Certification Requirement: RHCE Mandatory | CKA Preferred

Domain Focus: Linux Administration, Kubernetes, High Performance Computing (HPC), Infrastructure Operations & Automation

Position Summary

We are seeking highly experienced Senior Linux System Administrators to support and optimize mission-critical Linux and High Performance Computing (HPC) environments in Riyadh, Saudi Arabia. This role is ideal for professionals with deep expertise in Red Head Enterprise Linux, Kubernetes administration, infrastructure integration, and automation who thrive in large-scale enterprise and compute-intensive environments.

Detailed Job Description

As a Senior Linux System Administrator, you will be responsible for managing complex Linux-based infrastructure supporting high-performance computing workloads and enterprise applications. You will oversee the administration of HPC compute nodes, Kubernetes clusters, and integrated storage and networking platforms while ensuring high availability, security, and operational excellence. The role requires hands‑on expertise in Linux performance optimization, system hardening, patch management, and infrastructure monitoring. You will collaborate with multidisciplinary teams to design, deploy, and maintain scalable platforms that support demanding business and research workloads. This position offers the opportunity to work with cutting-edge compute technologies while driving automation, operational efficiency, and platform reliability across the organization.

Key Responsibilities

• Administer and maintain enterprise-scale Red Hat Enterprise Linux (RHEL) environments.
• Manage and support HPC compute nodes, clusters, and associated infrastructure components.
• Deploy, configure, monitor, and maintain Kubernetes clusters and containerized workloads.
• Perform Linux performance tuning, capacity planning, resource optimization, and system hardening activities.
• Implement operating system patching strategies and ensure compliance with security standards.
• Monitor infrastructure health, availability, performance, and operational metrics.
• Troubleshoot and resolve complex Linux, Kubernetes, compute, networking, and storage-related issues.
• Develop and maintain automation frameworks using Ansible, Shell scripting, and Python.
• Integrate compute, storage, networking, and HPC technologies into cohesive infrastructure solutions.
• Support production incidents, root cause analysis, and infrastructure recovery activities.
• Maintain system documentation, operational procedures, and technical standards.
• Collaborate with engineering, operations, and architecture teams to improve platform reliability and scalability.
• Implement best practices for infrastructure security, access control, backup, and disaster recovery.
• Continuously improve operational efficiency through automation and process optimization initiatives.

Required Qualifications & Skills

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related discipline.
• Strong hands‑on experience administering Red Hat Enterprise Linux (RHEL) environments.
• Mandatory Red Hat Certified Engineer (RHCE) certification.
• Proven experience managing and supporting High Performance Computing (HPC) environments.
• Strong experience administering Kubernetes clusters and containerized applications.
• Deep understanding of Linux system performance tuning, patching, security hardening, and troubleshooting.
• Experience with enterprise infrastructure monitoring and observability tools.
• Strong knowledge of compute, storage, server, and networking technologies.
• Experience with infrastructure automation using Ansible.
• Strong scripting skills using Shell and/or Python.
• Experience troubleshooting complex enterprise infrastructure environments.
• Strong analytical, problem‑solving, and root‑cause analysis capabilities.
• Excellent communication skills and ability to work within cross‑functional technical teams.
• Ability to manage multiple priorities in mission‑critical production environments.

Nice‑to‑Have Skills

• Certified Kubernetes Administrator (CKA) certification.
• Experience with large‑scale HPC clusters used in scientific, research, AI, or engineering environments.
• Knowledge of container security and Kubernetes hardening best practices.
• Experience with virtualization platforms and hybrid cloud environments.
• Familiarity with Infrastructure as Code (IaC) practices and DevOps methodologies.
• Experience with enterprise storage technologies, SAN/NAS environments, and high‑speed networking.
• Exposure to GPU computing, AI/ML infrastructure, or advanced workload scheduling platforms.

Recruitment Pro Tip

For this role, employers will prioritize candidates who can demonstrate real‑world experience managing both Linux and Kubernetes environments at scale. Be sure to highlight specific examples of HPC administration, automation projects using Ansible or Python, and complex infrastructure troubleshooting achievements that delivered measurable performance, reliability, or operational improvements.