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Senior Systems Administrator TS/SCI with CI Poly

STR
United Statesfull_timeVerifiedPosted 23 Sept 2025

About the role

About the Team

Our Information Technology team at STR is a robust assembly of highly skilled professionals dedicated to ensuring the seamless operation and security of our organization's technological infrastructure. Our Enterprise IT group is the backbone of our daily operations, providing comprehensive support and management of our software applications and hardware systems to ensure maximum efficiency and uptime. Our Classified IT group specializes in the secure handling and dissemination of sensitive information, operating under stringent protocols to protect national security interests. Lastly, our Enterprise Cybersecurity group stands as the vigilant guardian of our digital frontiers, employing cutting-edge technologies and proactive strategies to defend against cyber threats and maintain the integrity of our systems. Together, this formidable team works in concert to deliver cutting-edge IT solutions that empower our defense capabilities and uphold our commitment to national security.

The Role:

We are seeking a Senior Systems Administrator with a TS/SCI clearance with CI Polygraph to support our senior administrators in implementing, deploying, and maintaining Linux (Red Hat, CentOS, Ubuntu) and Windows operating systems in traditional and virtualized environments across a variety of hardware solutions.

Please note, this position is based in Woburn, Massachusetts only (no other sites, no remote)

What you will Do:

  • Professionally support senior administrators, Information System Security Officers (ISSO), management, researchers and others supporting the customers
  • Configure and maintain NAS Storage, Networking, Firewall, and Directory Services such as MS Active Directory management and Group Policy administration
  • Perform performance monitoring, results analysis and enhancement, as well as process automation using PowerShell scripting and other available technologies
  • Provide daily support, systems maintenance, problem resolution, tracing and project support
  • Create and maintain installation and configuration Standard Operating Procedures (SOPs)
  • Maintain current knowledge of DoD security and technical guidelines and the organization's policies
  • Provide support for production and development environments
  • After-hours support is required for maintenance and patching when needed

Who you Are:

  • This position requires a TS/SCI clearance with CI Polygraph security clearance, for which U.S. citizenship is needed by U.S. Government
  • Linux Administration (Red Hat, CentOS, Ubuntu)
  • Windows OS Administration

Nice to Haves:

  • Enterprise Virtualization Tools
  • Multi-Factor Authentication
  • Public Key Infrastructure
  • Web Server
  • Active Directory including Group Policy, LDAP backend, and Replication
  • Effective utilization of Security Technical Implementation Guidelines (STIGS) and Security Content Automation Protocol (SCAP) Content and Tools
  • Host Based Security System (HBSS) implementation and maintenance
  • Assured Compliance Assessment Solution (ACAS) support
  • Current knowledge of DoD Ports, Protocols, and Services (PPS)

Education:

  • Bachelor’s degree + 7 years, Master’s degree + 5 years, PhD + 2 years, or equivalent experience.

Why You’ll Love Working at STR:

At STR, we believe in creating a workplace where our employees feel valued, supported, and connected while contributing to challenging and meaningful work. In addition to the traditional health and welfare benefits, we offer a variety of perks to enhance your experience, such as the following: 

  • Generous paid time off offerings, paid parental leave, and flexible work arrangements (this position offers 9/80, 4/40, or 5/40 workweek options) 
  • Fitness reimbursement up to $299 for gym memberships, yoga studios, or similar plus an additional Blue Cross Blue Shield fitness reimbursement of up to $300  
  • Complimentary Company swag and regular employee events such as summer food truck lunches, summer outing, winter soiree, and bi-monthly happy hours (with STR-covered appetizers)
  • Complimentary snacks, cold brew/coffee, and weekly Bagel Fridays
  • 4% company match and 6% profit sharing through the 401k program
  • Complimentary Identity Theft protection
  • Career growth opportunities including tuition reimbursement up to $15,000/year for eligible coursework, learning and development resources, and 50% reimbursement of professional society membership dues 

We’re proud of the community-oriented culture we’ve built, and we’re excited for you to be a part

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Company

STR

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