Linux Systems Administrator, Senior - Top Secret Clearance Required

Location

US-IN-Crane

ID

2025-3549

AMERICAN SYSTEMS, an employee-owned company, is seeking a skilled Senior Linux Systems Administrator with 5+ years of experience and an active Top-Secret clearance to join our mission-critical team supporting our government customer at NWSC Crane, IN.

At AMERICAN SYSTEMS, you'll play a key role in delivering innovative solutions that empower the American Warfighter. Your expertise will help tackle the nation's most complex technical challenges and give our forces a decisive edge against our nation's adversaries.

As a Senior Linux Systems administrator with AMERICAN SYSTEMS, you will have the opportunity to:

Support on-premises Production and Development Linux infrastructure and applications.
• Provide Tier II support for production and development environments, managing ticket submission and tracking.
• Monitor resource availability to meet customer requirements, ensuring sufficient hardware, software, and throughput.
• Review and optimize system performance to ensure peak efficiency and reliability for mission-critical applications.
• Analyze system resource usage and apply corrective actions when necessary.
• Review system and application logs, ensuring completion of scheduled tasks and backups.
• Create and manage user accounts, groups, and permissions; maintain local repositories.
• Perform interface administration, including sFTP, SFG, and shell scripting.
• Develop and maintain administrative scripts (e.g., BASH, Python) for system maintenance.
• Document and implement system administration solutions to meet business requirements.
• Provide project status updates, problem resolution, and system administration reports to management.
• Coordinate problem resolution with customers, team members, and vendors as needed.
• Assess and recommend improvements for system software and hardware to enhance efficiency and functionality.
• Collaborate with the Cybersecurity team to implement, monitor, and maintain cybersecurity compliance and vulnerability mitigations.
• Be entrusted with mentoring and/or training less experienced staff as part of team development efforts.

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• Active Top Secret clearance required
• Bachelor's degree in a STEM discipline or 4 additional years of relevant experience in lieu of a degree.
• 5-7 years of relevant IT / Linux Systems Administration experience, including knowledge of containerization (Podman/Docker), Ansible, and OpenLDAP.
• Current DoD 8140 IAT level II certification (e.g., Security+ CE)
• Scripting skills in BASH and Python.
• Experience with VMware vSphere (version 7 or above).
• Familiarity with PostgreSQL databases.
• Must obtain a Red Hat Linux or comparable Linux Server OS certification (e.g., RHCSA or RHCE) within six months of hire.
• Candidates who currently possess active Red Hat certifications may be considered favorably during the selection process.

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AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $80,100.00/Yr. - USD $133,700.00/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.

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