Job Requirements
Corona, CA
Secret Polygraph not specified
Senior Level Career (10+ yrs experience)
Salary not specified
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Job Description
Sr Linux Admin
Clearance: Secret
Location: Corona, CA
Schedules: M-F Core Hours. 100 onsite, no remote/hybrid options
Salary: 145K+ (Flexible depending on experience)
JOB DESCRIPTION
Responsibilities
SSi is looking for a Senior Linux and OpenShift Administrator to provide senior-level administration, engineering, and operational support for Linux-based enterprise systems and container platforms, including Red Hat OpenShift, supporting mission-critical government and DoD programs. Serve as a technical authority for Linux infrastructure, container orchestration, automation, and secure system operations in classified and unclassified environments. Position is 100% onsite.
Responsibilities include, but are not limited to:
• Install, configure, administer, and maintain Linux operating systems (RHEL, CentOS, Rocky, or equivalent) across physical, virtual, and containerized platforms.
• Deploy, configure, administer, and sustain Red Hat OpenShift clusters, including control plane and worker nodes, storage integration, networking, and platform upgrades.
• Support containerized workloads using Kubernetes and OpenShift, including image lifecycle management, registry integration, role-based access control (RBAC), and namespace management.
• Perform system hardening, patching, and vulnerability remediation in accordance with DoD STIGs, RMF, and cybersecurity requirements, including container security best practices.
• Support and maintain virtualized and hyper-converged infrastructure (VMware ESXi) hosting Linux and OpenShift environments.
• Develop and maintain automation and Infrastructure-as-Code (IaC) solutions using Ansible, Bash, Python, and CI/CD integrations to accelerate platform provisioning and consistency.
• Monitor system, cluster, and application performance; troubleshoot complex Linux, Kubernetes, and OpenShift-related issues across development, test, and production environments.
• Implement and maintain logging, monitoring, and alerting solutions for Linux systems and OpenShift clusters.
• Support backup, recovery, and disaster recovery solutions for Linux systems, container platforms, and persistent storage.
• Collaborate with cybersecurity, networking, DevSecOps, SOC/NOC, and application teams to ensure secure, resilient, and compliant operations.
• Develop and maintain technical documentation including build guides, SOPs, platform architecture diagrams, and configuration baselines.
• Participate in security assessments, audits, inspections, and Authority to Operate (ATO) activities.
• Provide mentorship and technical leadership to junior Linux and container platform administrators.
• Provide technical briefings and system status updates to program leadership and government stakeholders as required.
• The Senior Linux & OpenShift Systems Administrator reports to the Program Manager or IT Lead.
• Other duties as assigned.
Required Skills
• Senior-level administration of Linux enterprise environments
• Hands-on experience with Red Hat OpenShift and Kubernetes
• Container platform security, RBAC, and compliance implementation
• Scripting and automation (Ansible, Bash, Python)
• Virtualization and enterprise infrastructure support
• Experience supporting mission-critical or classified systems
• Strong troubleshooting, documentation, and communication skills
• Ability to work independently and lead technical efforts
Certifications
• Comp TIA Sec+
• Willing to obtain one of the following certifications within 9 months of employment
• Red Hat Certified Engineer (RHCE)
• Red Hat Certified Architect (RHCA)
• Bachelor’s degree in computer science, Information Technology or a related field. Flexible on this for the right candidate
• Seven plus (7+) years of experience as a System Administrator with a strong focus on Linux systems.
• Senior-level administration of Linux enterprise environments
Clearance: Secret
Location: Corona, CA
Schedules: M-F Core Hours. 100 onsite, no remote/hybrid options
Salary: 145K+ (Flexible depending on experience)
JOB DESCRIPTION
Responsibilities
SSi is looking for a Senior Linux and OpenShift Administrator to provide senior-level administration, engineering, and operational support for Linux-based enterprise systems and container platforms, including Red Hat OpenShift, supporting mission-critical government and DoD programs. Serve as a technical authority for Linux infrastructure, container orchestration, automation, and secure system operations in classified and unclassified environments. Position is 100% onsite.
Responsibilities include, but are not limited to:
• Install, configure, administer, and maintain Linux operating systems (RHEL, CentOS, Rocky, or equivalent) across physical, virtual, and containerized platforms.
• Deploy, configure, administer, and sustain Red Hat OpenShift clusters, including control plane and worker nodes, storage integration, networking, and platform upgrades.
• Support containerized workloads using Kubernetes and OpenShift, including image lifecycle management, registry integration, role-based access control (RBAC), and namespace management.
• Perform system hardening, patching, and vulnerability remediation in accordance with DoD STIGs, RMF, and cybersecurity requirements, including container security best practices.
• Support and maintain virtualized and hyper-converged infrastructure (VMware ESXi) hosting Linux and OpenShift environments.
• Develop and maintain automation and Infrastructure-as-Code (IaC) solutions using Ansible, Bash, Python, and CI/CD integrations to accelerate platform provisioning and consistency.
• Monitor system, cluster, and application performance; troubleshoot complex Linux, Kubernetes, and OpenShift-related issues across development, test, and production environments.
• Implement and maintain logging, monitoring, and alerting solutions for Linux systems and OpenShift clusters.
• Support backup, recovery, and disaster recovery solutions for Linux systems, container platforms, and persistent storage.
• Collaborate with cybersecurity, networking, DevSecOps, SOC/NOC, and application teams to ensure secure, resilient, and compliant operations.
• Develop and maintain technical documentation including build guides, SOPs, platform architecture diagrams, and configuration baselines.
• Participate in security assessments, audits, inspections, and Authority to Operate (ATO) activities.
• Provide mentorship and technical leadership to junior Linux and container platform administrators.
• Provide technical briefings and system status updates to program leadership and government stakeholders as required.
• The Senior Linux & OpenShift Systems Administrator reports to the Program Manager or IT Lead.
• Other duties as assigned.
Required Skills
• Senior-level administration of Linux enterprise environments
• Hands-on experience with Red Hat OpenShift and Kubernetes
• Container platform security, RBAC, and compliance implementation
• Scripting and automation (Ansible, Bash, Python)
• Virtualization and enterprise infrastructure support
• Experience supporting mission-critical or classified systems
• Strong troubleshooting, documentation, and communication skills
• Ability to work independently and lead technical efforts
Certifications
• Comp TIA Sec+
• Willing to obtain one of the following certifications within 9 months of employment
• Red Hat Certified Engineer (RHCE)
• Red Hat Certified Architect (RHCA)
• Bachelor’s degree in computer science, Information Technology or a related field. Flexible on this for the right candidate
• Seven plus (7+) years of experience as a System Administrator with a strong focus on Linux systems.
• Senior-level administration of Linux enterprise environments
group id: 10508920