IT Systems Administrator II Jobs

Closed Area Systems Administrator

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 Administrator 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 Education, Experience, & Skills
• 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) 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.

Pay Information Full-Time Salary Range: $79365 - $134921