Principal Linux System Administrator

JOB DESCRIPTION

Job Description

We put our customers first – exemplified by our missions : “We Protect Those Who Protect Us” and “We Innovate for Those Who Move the World.” Sound like a team you want to be a part of? Come build your career with BAE Systems.

BAE Systems is seeking a highly trained and motivated Principal Closed Area Systems Administrator to lead and manage classified IT infrastructure operations in support of national security missions. This role is pivotal in ensuring the integrity, security, and availability of systems operating within Sensitive Compartmented Information Facilities (SCIFs) or other closed environments. You will serve as the technical lead for IT services, security compliance, and infrastructure readiness across high-impact, mission-critical programs. This position is 100% onsite within a closed, classified area. Some after-hours

or weekend support may be required for maintenance windows or incident response. You must be able to lift equipment (up to 40lbs) and work within controlled environments.

Key responsibilities include :

• Administer patch management for RHEL-based Linux systems, including vulnerability scanning, patch deployment, and compliance validation.
• Install and configure Trellix (McAfee) Linux Agents for endpoint protection and ePO integration.
• Deploy and configure Splunk Universal Forwarders on Linux systems; manage log ingestion and index routing.
• Reset LDAP BIND credentials within Splunk, ensuring connectivity and access control integration.
• Perform VCSA (vCenter Server Appliance) patching and lifecycle operations.
• Apply updates to VMware ESXi hosts, ensuring host profile compliance and uptime.
• Access and navigate the ESXi Direct Console User Interface (DCUI) for low-level host management.
• Perform Exchange operations in a classified environment including user mailbox creation, troubleshooting, and routine maintenance.
• Manage and maintain NetApp storage systems, including volumes, snapshots, and secure protocols.
• Operate in VMware vSphere environments, including provisioning, performance monitoring, and resource management.
• Install, configure, and maintain WSUS (Windows Server Update Services) for enterprise Windows patching.
• Maintain comprehensive documentation and contribute to RMF packages and audit readiness.
• Collaborate with ISSOs, security staff, and other IT stakeholders to ensure secure, compliant, and high-performing system operations.

Required Education, Experience, & Skills

Preferred Education, Experience, & Skills

Pay Information

Full-Time Salary Range : $115779 - $196825

Please note : This range is based on our market pay structures. However, individual salaries are determined by a variety of factors including, but not limited to : business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

Employee Benefits : At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered : health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance. Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and / or job specifics.