← Back to jobsJob ID scr-369a5137-4c58-4eb4-a745-b82733ec773b

Posted 30+ days ago

Classified Systems Administrator

Full-time
$105,000 to $125,000
Posted 30+ days ago

STR is hiring a Systems Administrator with an Top Secret/SCI with polygraph clearance. Help power the infrastructure behind cutting-edge defense research.

At STR, our Information Technology team plays a critical role in enabling the research and development that supports our national security mission. The team brings together experts across Enterprise IT, Classified IT, and Cybersecurity to build and maintain the secure, reliable infrastructure that powers our organization.

Posted
30+ Days Ago
Source
job-boards.greenhouse.io
Sector
Information Technology & AI

Opens the employer's application page in a new tab

Responsibilities

  • We are seeking a Systems Administrator with an active Secret or Top Secret clearance to support our senior administrators in implementing, deploying, and maintaining Linux (Red Hat, Ubuntu) and Windows operating systems in traditional and virtualized environments across a variety of hardware solutions.
  • If you enjoy solving complex infrastructure challenges, improving system reliability, and working in a mission-driven environment, we’d love to hear from you. Please note: this position is based in Woburn, Massachusetts only (no other sites, no remote).
  • 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

Qualifications

  • This position requires an active Top Secret/SCI with polygraph clearance, for which U.S. citizenship is needed by U.S. Government
  • Linux Administration (Red Hat, Ubuntu)
  • Nice to Haves:
  • 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)
  • Bachelor’s degree + 5 years of experience or Master’s degree + 3 years of experience or PhD or equivalent experience.

Full job description

STR is hiring a Systems Administrator with an Top Secret/SCI with polygraph clearance. Help power the infrastructure behind cutting-edge defense research.

At STR, our Information Technology team plays a critical role in enabling the research and development that supports our national security mission. The team brings together experts across Enterprise IT, Classified IT, and Cybersecurity to build and maintain the secure, reliable infrastructure that powers our organization.

Our Enterprise IT team ensures the performance and availability of the systems that support day-to-day operations, while our Classified IT team manages highly secure environments that protect sensitive government information. Working alongside them, our Cybersecurity team proactively defends our networks and systems against evolving threats. Together, these teams provide the technology foundation that enables STR’s engineers and researchers to develop innovative solutions for national defense.

The Role:

We are seeking a Systems Administrator with an active Secret or Top Secret clearance to support our senior administrators in implementing, deploying, and maintaining Linux (Red Hat, Ubuntu) and Windows operating systems in traditional and virtualized environments across a variety of hardware solutions.

If you enjoy solving complex infrastructure challenges, improving system reliability, and working in a mission-driven environment, we’d love to hear from you. 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 an active Top Secret/SCI with polygraph clearance, for which U.S. citizenship is needed by U.S. Government
  • Linux Administration (Red Hat, 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 + 5 years of experience or Master’s degree + 3 years of experience or PhD or equivalent experience.

Job details

Employment type

Full-time

Seniority level

Not stated

Date posted

Oct 12, 2026

Work mode

Not stated

Job source

job-boards.greenhouse.io

Company

Confidential employer

Information Technology & AI

  • Woburn, MA
  • Information Technology & AI

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