Systems Administrator II, Windows/Linux

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 proactive and detail-oriented Closed Area Systems Administrator to join our Information Technology team supporting classified environments. This individual will work with a dynamic team responsible for the configuration, maintenance, and security of IT systems housed in closed areas, supporting critical national defense programs.

As a key member of the IT support organization, you will play a vital role in managing and maintaining classified computing infrastructure while ensuring strict adherence to security compliance requirements such as RMF, NIST 800-53, and JSIG.

In this System Adminstrator II position supporting our closed areas you will make impacts in the following ways;

• Perform user account administration, group policy configuration, and role-based access control in Active Directory for a classified environment.
• Provide desktop systems administration, including imaging, configuration, troubleshooting, and secure application support.
• Manage and monitor virtual server instances (e.g., VMware, Hyper-V), ensuring uptime, performance, and resource allocation.
• Lead and track monthly OS and application patching across desktops and servers, ensuring full compliance with security baselines and STIGs.
• Maintain domain health, DNS/DHCP, and group policy objects within Active Directory.
• Support system logging, event correlation, and incident response efforts within the closed area.
• Collaborate with ISSOs and security staff to ensure all system changes comply with RMF and local security policies.
• Maintain thorough system documentation, configuration baselines, and change logs.
• Support classified system accreditation activities and audits as needed., This role requires 100% onsite work in a secure, closed arearemote or hybrid options are not available

Work may occasionally require after-hours support for patching or security-related events

Must be capable of lifting/moving equipment (up to 40 lbs) and performing physical tasks within secure rooms

• U.S. Citizenship
• Active Secret Security Clearance and CompTIA Security or equivalent DoD 8570 IAT Level II certification.
• 36 years of experience (2 years of experience with a degree) as a systems administrator.
• Proficiency in Active Directory, including user/group management, OU structure, and GPOs.
• Hands-on experience with desktop system support (Windows OS, Red Hat Linux) and endpoint hardening.
• Experience managing virtualized server environments (VMware or Hyper-V).
• Familiarity with monthly patching procedures, SCCM/WSUS, and vulnerability remediation.
• Strong documentation skills and familiarity with change/configuration management practices.
• Familiarity with Linux OS

Preferred Education, Experience, & Skills

Active U.S. TS/SCI Security Clearance.

2 years of experience working in a classified environment

Experience with secure system build processes and STIG compliance.

Working knowledge of RMF, NISPOM, and JSIG/ICD 503 requirements.

Familiarity with backup and recovery tools in classified environments.

Exposure to scripting (PowerShell, Python, Bash) for automation and task optimization.

Experience supporting secure enclaves, air-gapped systems, or cross-domain solutions.

Full-Time Salary Range: $79365 - $134921

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.