Senior Linux Systems Engineer – TS/SCI
Cornerstone Defense LLC
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Benefits offered by this job
Job summary
Cornerstone Defense LLC seeks a Senior Linux System Administrator/System Engineer to support a high-visibility, mission-critical Linux environment across secure facilities. The role emphasizes CentOS/RHEL administration, middleware sustainment (JBoss/WildFly), virtualization, automation, and strict security compliance.
Independent work ethic and adaptability are essential. Required 10+ years in Linux system administration or systems engineering, with hands-on experience in virtualization and
Qualifications
- 10+ years of Linux System Administration experience in mission environments.
- Extensive hands-on CentOS/RHEL administration with JBoss/WildFly.
- VMware VM creation, configuration, and operations.
- CompTIA Security+ certification required.
- Strong scripting and automation experience.
- Storage and networking fundamentals for secure systems.
Responsibilities
- Provide expert Linux system administration and engineering in mission-critical environments.
- Sustainment and integration of JBoss/WildFly middleware and virtualization.
- Collaborate across mission teams to maintain system reliability and compliance.
- Implement security hardening and incident response readiness.
Skills
Tools
Job description
Cornerstone Defense LLC seeks a Senior Linux System Administrator/System Engineer to support a high-visibility, mission-critical Linux environment across secure facilities. The role emphasizes CentOS/RHEL administration, middleware sustainment (JBoss/WildFly), virtualization, automation, and strict security compliance.
Independent work ethic and adaptability are essential. Required 10+ years in Linux system administration or systems engineering, with hands-on experience in virtualization and
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