Job DescriptionBAE 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.
Additional information:• This role requires 100% onsite work in a secure, closed area-remote 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
Required Skills and Education- U.S. Citizenship
- Active Secret Security Clearance and CompTIA Security+ or equivalent DoD 8570 IAT Level II certification.
- 3-6 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 Skills and Education• Active TS / SCI Security clearance and 2 or more 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.
