Cleared Systems Administrator

STR; Woburn (MA); On-site; USD 105,000 - 125,000; Full time

Job summary

A leading defense contractor in Woburn, Massachusetts is hiring a Systems Administrator. This role entails supporting senior administrators, configuring NAS storage, and performing system maintenance. The ideal candidate will possess an active Secret or Top Secret security clearance and experience in Linux and Windows operating systems. A Bachelor's or Master's degree with relevant experience is required. The compensation ranges from $105,000 to $125,000, with additional responsibilities including after-hours support for system maintenance.

Qualifications

• This position requires an active Secret or Top Secret security clearance.
• Experience with Linux (Red Hat, Ubuntu) and Windows operating systems.
• Bachelor’s, Master’s, or PhD degree or equivalent experience.

Responsibilities

• Support senior administrators and ISSOs in system maintenance.
• Configure and maintain NAS Storage and networking services.
• Perform performance monitoring and process automation.
• Create and maintain installation SOPs.
• Provide after-hours support for maintenance.

Skills

Linux Administration (Red Hat, Ubuntu)

Windows OS Administration

PowerShell scripting

Information System Security

Education

Bachelor’s degree with 5 years of experience

Master’s degree with 3 years of experience

Tools

Enterprise Virtualization Tools

Multi-Factor Authentication

Active Directory

Job description

STR is hiring a Systems Administrator with an Active Secret or Top Secret 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 Secret or Top Secret security 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.

Pay Information

Full‑Time Salary Range: $105,000 to $125,000

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.