Principal Windows- Linux Systems Administrator- Will sponsor a clearance

RTX•Andover, MA
•$95,500 - $181,700•Onsite

About The Position

The Principal Systems Administrator supports Windows and Linux enterprise environments across multiple programs and locations, including Woburn, Tewksbury, and Andover, Massachusetts. The role is responsible for designing, implementing, maintaining, patching, and troubleshooting Windows Server, Windows 11, RHEL 7/8/9, and virtualized infrastructure in a large-scale, mission-critical environment operating 24x7x365. The administrator supports system security and compliance through patching, vulnerability remediation, STIG/EVAL STIG implementation, SCAP/ACAS support, log collection, and coordination with Cyber Security teams. The position also designs and maintains VMware infrastructure, enterprise imaging and deployment solutions, automation, and core Windows services. The work involves collaboration with Digital Technology, Engineering, Cyber Security, DevSecOps, Networking, Storage, and Tools teams, while independently handling complex infrastructure and compliance challenges. This is a full-time, 100% onsite position in a DoD closed-area environment. Occasional after-hours support and up to 10% travel may be required. A DoD interim security clearance is required to set a start date; U.S. citizenship is required to obtain a clearance. Relocation is eligible.

Requirements

  • Typically, a bachelor’s degree with 5+ years of relevant experience, or an advanced degree with 3+ years of relevant experience.
  • Ability to obtain a U.S. government-issued Secret security clearance; U.S. citizenship is required. A DoD interim clearance is required to start.
  • Experience administering and securing Windows and RHEL servers.
  • Experience with VMware virtualization.
  • Experience securing system configurations and system hardening.
  • Experience with scripting.

Nice To Haves

  • Currently active Secret clearance.
  • Hands-on experience with MECM/SCCM, PXE boot services, OS imaging, and automated software deployment frameworks.
  • Familiarity with NetApp storage and/or HPC environments.
  • Experience with enterprise Windows services, including Active Directory, Group Policy, and identity integration.
  • Familiarity with cybersecurity and compliance tools and processes, including ACAS, SCAP, Splunk, STIG Viewer, and audit support.
  • Experience supporting or integrating with DevSecOps environments, including Kubernetes, Rancher, and artifact repositories.

Responsibilities

  • Design, implement, maintain, patch, and troubleshoot Windows Server, Windows 11, RHEL 7/8/9, and virtualized infrastructure.
  • Perform Windows and Linux patching, vulnerability remediation, and compliance activities, including STIG/EVAL STIG implementation, SCAP/ACAS support, and log collection.
  • Coordinate with Cyber Security teams to maintain continuous compliance with DoD and regulatory requirements.
  • Design, deploy, and maintain VMware ESXi and vCenter infrastructure, including VM lifecycle management, host upgrades, performance tuning, and production workload support.
  • Engineer and sustain enterprise imaging, deployment, and automation solutions using MECM/SCCM, PXE, Windows imaging, in-place OS upgrades, PowerShell, and automation frameworks.
  • Administer and support Active Directory, Group Policy, secure system configurations, certificate-based authentication, and customized user environments.
  • Collaborate with Digital Technology, Engineering, Cyber Security, DevSecOps, Networking, Storage, and Tools teams to resolve infrastructure, integration, and compliance challenges.
  • Support planned and emergent operational needs in a DoD closed-area environment, including occasional after-hours support and travel of up to 10%.
  • Work independently, prioritize competing demands, and execute with minimal direction in a fast-paced operational environment.

Benefits

  • Medical insurance
  • Dental insurance
  • Vision insurance
  • Life insurance
  • Short-term disability
  • Long-term disability
  • 401(k) match
  • Flexible spending accounts
  • Flexible work schedules
  • Employee assistance program
  • Employee Scholar Program
  • Parental leave
  • Paid time off
  • Holidays
  • Relocation eligibility
  • Annual short-term and/or long-term incentive compensation may be available, subject to eligibility and program conditions.
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