Principal System Administrator

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

Principal System Administrator based in Woburn, MA, internally known as Principal Analyst, Information Workplace Services collaborate and support exciting, critical programs with classified information system capabilities. Success in this role means you can develop, implement, and maintain secure, cost-efficient environments across various classified programs. Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems.

Serve as a Principal System Administrator supporting Windows and Linux enterprise environments, responsible for the design, implementation, maintenance, patching, and troubleshooting of Windows Server, Windows 11, RHEL 7/8/9, and virtualized infrastructure within a large-scale, mission-critical environment operating 24x7x365.

Experience with Windows and Linux patching, vulnerability remediation, and compliance activities, including STIG/EVAL STIG implementation, SCAP/ACAS support, log collection, and close coordination with Cyber Security teams to maintain continuous compliance with DoD and regulatory requirements.

Design, deploy, and maintain virtual infrastructure using VMware ESXi and vCenter, including VM lifecycle management, host upgrades, performance tuning, and support of critical production workloads.

Engineer and sustain enterprise imaging, deployment, and automation solutions, including MECM/SCCM, PXE, Windows imaging, in-place OS upgrades, and scripted software deployment using Power Shell and automation frameworks.

Administer and support core Windows services and integrations, including Active Directory, Group Policy, secure system configurations, certificate-based authentication, and customized user environments.

Collaborate across Digital Technology, Engineering, Cyber Security, Dev Sec Ops , Networking, Storage, and Tools teams to resolve complex infrastructure, integration, and compliance challenges, while operating independently with minimal oversight.

Support both planned and emergent operational needs in a fully on-site DoD closed-area environment, including occasional after-hours support and up to 10% travel as required to meet program objectives.

Work independently, prioritize competing demands, and execute with minimal direction in a fast-paced operational environment.

Full time 100% onsite position.

Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.

Active and transferable U.S. government issued secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Experience administering and securing Windows and/or RHEL servers.

Experience with VMware virtualization, securing system configurations, system hardening.

Experience with Power Shell scripting.

Experience serving as a technical SME or primary point of contact for patching, vulnerability remediation, or compliance initiatives.

Hands-on experience with MECM/SCCM, PXE boot services, OS imaging, and automated software deployment frameworks.

Familiarity with Net App storage and/or HPC environments.

Experience with enterprise Windows services, including Active Directory, Group Policy, and identity integration.

Familiarity with cybersecurity and compliance tooling, such as ACAS, SCAP, Splunk, STIG Viewer, and audit support processes.

Experience supporting or integrating with Dev Sec Ops  environments, including Kubernetes, Rancher, and artifact repositories.

Experience with SQL Server,…