IT Systems Administrator Security Clearance
Job in
Merrimack, Hillsborough County, New Hampshire, 03054, USA
Listed on 2026-01-08
Listing for:
BAE Systems
Full Time
position Listed on 2026-01-08
Job specializations:
-
IT/Tech
Systems Administrator, Cybersecurity, IT Support, Network Security
Job Description & How to Apply Below
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 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 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 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 (Power Shell, Python, Bash) for automation and task optimization.
• Experience supporting secure enclaves, air-gapped systems, or cross-domain solutions. Pay Information
Full-Time Salary Range: $77809 - $132275
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…
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