Linux System Administrator

Intermediate Linux System Administrator

Work Location: On-site (no remote support)

Clearance: TS clearance required; must be eligible for SCI access

Travel: Occasional travel required, including an initial one-week training trip at the start of performance

Anticipated Start Date: September 2026 (subject to contract award and program timelines)

Period of Performance: Initial one-year period with potential for follow-on support based on program requirements.

Position Overview

Seeking an Intermediate Linux System Administrator to support the administration and maintenance of an operational Cross Domain Solution (CDS) environment. Responsibilities include routine monitoring and maintenance of systems, implementation of updates and tasking requirements, and providing break/fix support as needed to maintain operational availability.

Note: This position includes an expectation of occasional after-hours or weekend support in the event of critical system issues. This is not a 24/7 on-call requirement. Availability and planned absences can be coordinated with program leadership. Historical after-hours support requirements have averaged approximately four hours per month.

Key Responsibilities

• System Monitoring and Log Management


• System Maintenance and Security


• User Support and Account Management


• Endpoint, Bridge Server, and Data Flow Administration

Required Qualifications

• Bachelor's degree in Computer Science or CompTIA Security+ certification


• Training in Red Hat Enterprise Linux (RHEL)


• Minimum of three years of experience administering Red Hat Enterprise Linux environments


• Knowledge of Apache NiFi components and configuration


• TS clearance with SCI eligibility




• Routine work within sensitive compartmented environments may be required.


• Candidates must be eligible to meet background investigation requirements applicable to privileged system administrators.




• Ability to travel for periodic training and support requirements

Preferred Qualifications

• Experience administering Cross Domain Solutions (CDS)


• Familiarity with secure data transfer and information-sharing environments

Note: Direct CDS administration experience is preferred but not required. Specialized training will be provided to support administration and maintenance of the CDS environment and associated procedures.