Systems Administrator – Lead (LINUX)

ASRC Federal; Arlington, Northern (VA, KY); Hybrid; USD 115,000 - 155,000; Full time

Job summary

ASRC Federal is seeking a seasoned Systems Administrator – Lead (Linux) to own the Linux/UNIX environment for Army command-and-control mission systems at the Pentagon. You will direct administration, security posture, and availability, mentoring junior staff and coordinating cross-functional teams.

The role requires a Top Secret clearance with SCI eligibility, 8+ years IT experience including 5+ years Linux admin, DoD/C2 experience preferred, and on-site work in Washington, DC with occasional

Qualifications

• Eight+ years IT experience with five+ years Linux/UNIX administration.
• Experience administering Linux in a complex enterprise network.
• Knowledge of IA/IT security controls, STIGs and ACAS.
• Experience with SAN storage, backups, and fault-tolerant tech.
• Experience as technical lead or senior escalation point.

Responsibilities

• Install, configure, tune, patch, and sustain Linux/UNIX OS across the enclave.
• Troubleshoot OS, applications, databases, email systems, and data interfaces to root cause.
• Administer Linux systems in a multi-layered network environment.
• Apply and validate IA/IT security controls, including STIG and ACAS remediation.
• Monitor, detect intrusions, and escalate per incident response procedures.
• Administer SAN storage, backups, and fault-tolerant technologies.
• Develop and maintain installation/configuration/operating procedures; update standards.
• Mentor junior admins and serve as day-to-day Linux/UNIX point of contact.

Skills

Linux/UNIX

Technical leadership

IT security (IA)

Networking fundamentals

Troubleshooting

Education

Bachelor's degree in CS/IT

Tools

VMware vSphere

ACAS

SAN storage

Job description

Posted Thursday, August 20, 2026 at 5:00 AM

ASRC Federal is a leading government contractor furthering missions in space, public health and defense. As an Alaska Native owned corporation, our work helps secure an enduring future for our shareholders. Join our team and discover why we are atop veteran employer and Certified Great Place to Work™

ASRC Federal Agile Decision Sciences LLC is seeking an experienced Systems Administrator – Lead (LINUX) to support the Command-and-Control Support Agency (CCSA), Technical Services Division (TSD) at the Pentagon. ASRC Federal performs this work as a subcontractor supporting the CCSA TSD requirement.

In this role you will serve as the senior technical authority for the Linux/UNIX environment supporting Army command-and-control mission systems. You will own the health, security posture, and availability of that environment, set technical direction for administration and sustainment activities, and serve as the escalation point for complex operating system, application, and data interface issues.

• Proven track record of technical leadership across concurrent projects and cross-functional teams, with strong organizational and written/verbal communication skills.
• Experience with Linux administration in support of the U.S. Army and on Command and Control (C2) systems is highly desired.
• Extensive working knowledge of IT networking, hardware, firmware, application software, operating system software, and database management systems (DBMS).

RESPONSIBILITIES

• Install, configure, tune, patch, and sustain Linux/UNIX operating systems across the supported enclave.
• Troubleshoot operating systems, applications, databases, email systems, and complex data interface issues to root cause.
• Administer Linux systems hosted in a complex, multi-layered network environment.
• Apply and validate current Information Assurance and IT security controls, including STIG implementation, ACAS scanning, and remediation of findings.
• Perform monitoring, intrusion and penetration detection, and alert notification; elevate in accordance with established incident response procedures.
• Administer SAN storage, enterprise backup solutions, and fault-tolerant technologies.
• Develop and maintain installation, configuration, and operating procedures; contribute to and maintain system standards and documentation.
• Provide technical mentorship to junior administrators and serve as the day-to-day technical point of contact for Linux/UNIX matters.

BASIC QUALIFICATIONS

• Eight (8) or more years of Information Technology experience, including a minimum of five (5) years of hands-on Linux/UNIX system administration. (Confirm against PWS §3.0 before posting — see note.)
• Demonstrated experience administering Linux systems in a complex, multi-layered enterprise network.
• Working knowledge and applied experience with current IA and IT security control implementation procedures, to include STIGs and ACAS.
• Experience with SAN storage, enterprise backup solutions, and fault-tolerant technologies.
• Demonstrated experience serving as a technical lead or senior escalation point.

Preferred:

• Linux/UNIX administration experience in a U.S. Army or DoD operational environment.
• Experience supporting Command and Control (C2) systems.
• Virtualization experience (VMware vSphere or equivalent), scripting/automation, and configuration management tooling.

CERTIFICATIONS

• DoD 8570.01-M / DoDD 8140.01 IAT Level III baseline certification required at time of onboarding.
• Computing Environment (CE) / Operating System certification correlating to the Linux environment, required within six (6) months of assignment to the position.

EDUCATION REQUIREMENTS

• Bachelor's degree in Computer Science, Information Technology, or a related field. Additional directly relevant experience may be considered in lieu of a degree where permitted by the contract.

CLEARANCE LEVEL

• An active Top Secret clearance with SCI eligibility is required at the time of application. This position supports an operational requirement with an immediate start; candidates who would need to be submitted for an initial investigation cannot be considered.
• Candidates must be able to maintain the clearance for the duration of the assignment.

WORK ENVIRONMENT AND PHYSICAL DEMANDS

• This position is full-time on-site at the Pentagon, Washington, DC. Telework is not available for this role.
• Core support hours are Monday through Friday during normal duty hours, with occasional after-hours or weekend support required for maintenance windows, outages, and time-sensitive security actions.

We invest in the lives of our employees, both in and out of the workplace, by providing competitive pay and benefits packages. Benefits offered may include health care, dental, vision, life insurance; 401(k); education assistance; paid time off including PTO, holidays, and any other paid leave required by law. The salary offered will depend on several factors including, but not limited to, relevant experience, skills, education, geographic location, internal equity, business needs, and other factors permitted by law. Posted pay ranges are a general guideline only and are not a guarantee of compensation or salary.

EEO Statement

ASRC Federal and its Subsidiaries are Equal Opportunity employers. All qualified applicants will receive consideration for employment without regard to race, gender, color, age, sexual orientation, gender identification, national origin, religion, marital status, ancestry, citizenship, disability, protected veteran status, or any other factor prohibited by applicable law.