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Systems Admin Sr

2 weeks ago

Nashua, NH, United States BAE Systems USA Full time
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 Senior Closed Area Systems Administrator to provide comprehensive technical and operational support for classified IT systems. This position requires a seasoned IT professional with expertise in managing complex, air-gapped systems and lab environments in accordance with DoD and Intelligence Community security requirements. You will be responsible for the configuration, maintenance, and monitoring of secure networks and systems, including Lab-in-a-Box (LIB) environments, virtualization platforms, endpoint protection, and logging/alerting tools. 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:
  • Proficiency in Active Directory, including user/group management, OU structure, and GPOs.
  • Configure, deploy, and maintain Lab-in-a-Box (LIB) environments used in closed area testing and mission scenarios.
  • Develop and execute system shutdown and secure wipe procedures, in accordance with DoD and agency guidelines.
  • Lead and coordinate data spill containment, response, and remediation actions in classified environments.
  • Operate and manage Nessus vulnerability scanning, assessment reporting, and risk remediation tracking.
  • Maintain and support VMware-based virtual infrastructure, including host management and resource allocation.
  • Operate and manage Veeam backup and recovery solutions for secure system images and restoration planning.
  • Administer Trellix ePO (McAfee) for endpoint protection policy management, signature updates, and alert resolution.
  • Perform domain controller maintenance, including replication, DNS/DHCP services, and health monitoring.
  • Design, implement, and troubleshoot Group Policy Objects (GPOs) in Active Directory.
  • Support Splunk operations, including forwarder management, dashboard/report creation, and log analysis for auditing and threat detection.
  • Ensure all systems are compliant with applicable STIGs, RMF controls, and cyber hygiene policies.
  • Maintain system documentation, configuration change records, and contribute to audit readiness.
  • Collaborate with ISSOs/ISSMs, facility security, and other stakeholders to ensure secure and compliant operations.
About BAE Systems Electronic Systems

BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. Improving the future and protecting lives is an ambitious mission, but it's what we do at BAE Systems. Working here means using your passion and ingenuity where it counts - defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team-making a big impact on a global scale. At BAE Systems, you'll find a rewarding career that truly makes a difference. Electronic Systems (ES) is the global innovator behind BAE Systems' game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere - from the depths of the ocean to the far reaches of space. At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact - for our customers and the communities we serve.

This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

Required Skills and Education
  • US Citizenship.
  • Active U.S. Secret Security Clearance and CompTIA Security+ or equivalent DoD 8570 IAT Level II certification.
  • 5-7 years of experience and a high school diploma or (4+ years of experience with a degree) as a system administrator.
  • Direct experience configuring and managing Lab-in-a-Box (LIB) environments.
  • Familiarity with data spill response protocols and secure system sanitization.
  • Hands-on experience with Nessus, VMware vSphere, Veeam, and Trellix ePO.
  • Strong Active Directory experience, including domain controller and GPO management.
  • Working knowledge of Splunk in secure environments (including alerting and data retention strategies).
  • Understanding of DoD and IC security standards, including RMF, NISPOM, and STIG compliance.
Preferred Skills and Education
  • Active U.S. TS/SCI Security Clearance.
  • 4+ years of experience working in a classified environment
  • Experience with system accreditation (e.g., SSP development, POA&M tracking).
  • Familiarity with classified lab setups, test bed environments, or R&D support.
  • Exposure to cross-domain solutions, enclave management, or SAP/SAR environments.
  • Scripting experience (PowerShell, Python) to automate common sysadmin tasks.
  • Experience supporting audit and inspection activities.