Senior Linux & OpenShift Engineer (RHCE) – Onsite DoD

Bowhead; Corona (CA); On-site; USD 200,000 - 240,000; Full time

Job summary

Bowhead seeks a Senior Linux & OpenShift Systems Administrator for the Corona IT program to provide senior-level administration, engineering, and operational support for Linux-based enterprise systems and container platforms in DoD environments.

This onsite role requires RHCE or RHCA certification and active security clearance at the Secret level. You will mentor staff, implement secure operations, and collaborate with cybersecurity and DevSecOps teams.

Qualifications

• Bachelor's degree in Computer Science, Information Technology or a related field.
• 7+ years of experience as a System Administrator with a strong focus on Linux systems.
• Senior-level administration of Linux enterprise environments.
• Hands-on experience with Red Hat 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: RHCE/RHCA and Sec+ or equivalent.
• DoD/clearance experience preferred (government/classified environments).

Responsibilities

• Install, configure, administer, and maintain Linux operating systems across physical, virtual, and containerized platforms.
• Deploy, configure, administer, and sustain OpenShift clusters including control plane and worker nodes.
• Support containerized workloads using Kubernetes and OpenShift with RBAC and namespace management.
• Perform system hardening and vulnerability remediation per DoD requirements and container security best practices.
• Support and maintain VMware ESXi hosting Linux and OpenShift environments.
• Develop and maintain automation and IaC solutions using Ansible, Bash, Python, and CI/CD integrations.
• Monitor system, cluster, and application performance; troubleshoot complex Linux/OpenShift issues.
• Implement and maintain logging, monitoring, and alerting for Linux and OpenShift.
• Support backup, recovery, and disaster recovery solutions for Linux and container platforms.
• Collaborate with cybersecurity, networking, DevSecOps, SOC/NOC, and app teams for secure operations.
• Develop and maintain technical documentation including build guides and architecture diagrams.
• Participate in security assessments, audits, and Authority to Operate activities.
• Provide mentorship and technical leadership to junior Linux and container staff.
• Provide system status updates to program leadership and government stakeholders.

Skills

Linux system administration

Red Hat Enterprise Linux

Kubernetes

OpenShift

Automation with Ansible Bash Python

Security/compliance (DoD STIG/RMF)

Scripting and troubleshooting

Lead technical efforts

Education

Bachelor's degree in Computer Science, Information Technology or related field

Tools

Ansible

CI/CD pipelines

VMware ESXi

Job description

Bowhead seeks a Senior Linux & OpenShift Systems Administrator for the Corona IT program to provide senior-level administration, engineering, and operational support for Linux-based enterprise systems and container platforms in DoD environments.

This onsite role requires RHCE or RHCA certification and active security clearance at the Secret level. You will mentor staff, implement secure operations, and collaborate with cybersecurity and DevSecOps teams.