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Sr. Principal System Administrator; ONSITE

Job in Tewksbury, Middlesex County, Massachusetts, 01876, USA
Listing for: Raytheon
Full Time position
Listed on 2026-10-19
Job specializations:
  • IT/Tech
    Systems Administrator, Cybersecurity, IT Support
Job Description & How to Apply Below
Position: Sr. Principal System Administrator (ONSITE)
Job d:
Posted 11 Days Ago

Start Date:

Location:

US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord Country:
United States of America Time Type:
Full time

Date Posted:

Country:

United States of America

Location:

US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord

Position Role Type:

Onsite

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​

Security Clearance Type:
Secret - Current

Security Clearance Status:
Active and existing security clearance required on day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

Our Digital Technology (DT) organization ensures that Raytheon teammates across the globe are able to communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world.

Sr. Principal System Administrator based in Tewksbury, MA, internally known as Manager, 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.

What You Will Do:

Serve as a Subject Matter Expert (SME) for Microsoft Windows and Red Hat Enterprise Linux (RHEL) environments, providing technical leadership in the design, implementation, troubleshooting, and sustainment of physical and virtual infrastructure.

Collaborate across Digital Technology and supported programs to develop and deliver cost-effective hardware and software solutions that meet current and future business needs while leveraging industry best practices.

Partner with customers, engineers, system administrators, storage architects, network engineers, tools teams, and High-Performance Computing (HPC) teams to design solutions and resolve complex infrastructure challenges.

Ensure high levels of system availability, reliability, and performance through proactive monitoring, infrastructure management, troubleshooting, and continuous improvement.

Ensure compliance with applicable cybersecurity and regulatory requirements, including DFARS, Risk Management Framework (RMF), NIST cybersecurity standards, and organizational security requirements.

Respond to service and support requests, ensuring work is appropriately prioritized, tracked, documented, and driven to resolution while delivering a high level of customer service.

Develop and maintain technical and operational documentation, standards, and procedures while mentoring and developing other system…
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