Linux Systems Administrator | OpenShift/Kubernetes Expert

RadNet, Inc.; Killeen, Northern (TX, KY); Hybrid; USD 85,000 - 120,000; Full time

Job summary

RadNet, Inc. is seeking a skilled Linux Systems Administrator with OpenShift/Kubernetes experience to administer, monitor, and optimize Linux environments across enterprise applications.

You will collaborate with development, DevOps, and security teams to resolve complex issues and implement scalable OpenShift solutions. The role requires updating documentation, maintaining security hardening, and participating in on-call rotations to support after-hours incidents.

Qualifications

• In-house SME to administer, monitor, and maintain Linux (RHEL/Ubuntu/CentOS) systems.

Responsibilities

• Configure, secure, and optimize Linux services (systemd, SSH, Apache/Nginx, cron).
• Collaborate with development, DevOps, and security teams to support enterprise applications.
• Provide Tier 2/3 support for escalated system issues.
• Identify, research, and implement Linux and OpenShift solutions and applications.
• Maintain up-to-date knowledge of emerging server tools and technologies.
• Ensure compliance with security standards, patching schedules, and company policies.
• Participation in weekly on-call rotation to respond to after-hours issues.

Skills

Linux administration

OpenShift/Kubernetes

Docker

Git/CI-CD

DevOps practices

Security hardening

Patch management

Communication

Analytical thinking

Multi-tasking

Education

Bachelor's degree in Computer Science/Engineering or related field preferred

Tools

RHCSA/RHCE

MCSE

CKAD/CKA

OpenShift certification

Terraform

Ansible

Prometheus

Grafana

ELK

Splunk

Docker

Kubernetes

VMware vSphere

Active Directory

PowerShell

Job description

RadNet, Inc. is seeking a skilled Linux Systems Administrator with OpenShift/Kubernetes experience to administer, monitor, and optimize Linux environments across enterprise applications.

You will collaborate with development, DevOps, and security teams to resolve complex issues and implement scalable OpenShift solutions. The role requires updating documentation, maintaining security hardening, and participating in on-call rotations to support after-hours incidents.