Senior Linux System Engineer - TS/SCI Poly, Mission-Critical
Cornerstone Defense LLC
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Benefits offered by this job
Job summary
Cornerstone Defense LLC is seeking a Senior Linux System Administrator/System Engineer to support a high-visibility mission environment in Annapolis Junction. You will lead admin, engineering, and sustainment of Linux-based systems, with emphasis on CentOS/RHEL, JBoss/Wildfly, virtualization, and automation to ensure reliability and security.
The role requires deep technical expertise, ability to work independently in fast-paced settings, and a TS/SCI clearance with polygraph.
Qualifications
- 10+ years in Linux system administration or systems engineering in mission environments.
- Deep CentOS/RHEL administration and JBoss/Wildfly deployment.
- VMware VM creation, configuration, and operations.
- CompTIA Security+ certification is required.
Responsibilities
- Provide expert-level administration, engineering, and sustainment of Linux-based systems across secure facilities.
- Collaborate across mission teams and ensure system reliability, availability, and compliance.
- Manage enterprise middleware, virtualization, and scripting for automation and hardening.
Skills
Tools
Job description
Cornerstone Defense LLC is seeking a Senior Linux System Administrator/System Engineer to support a high-visibility mission environment in Annapolis Junction. You will lead admin, engineering, and sustainment of Linux-based systems, with emphasis on CentOS/RHEL, JBoss/Wildfly, virtualization, and automation to ensure reliability and security.
The role requires deep technical expertise, ability to work independently in fast-paced settings, and a TS/SCI clearance with polygraph.
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