Sr. Principal System Administrator (ONSITE)

RTX (Raytheon); Tewksbury (MA); On-site; USD 120,000 - 180,000; Full time

Job summary

RTX seeks a Sr. Principal System Administrator in Massachusetts to lead secure IT infrastructure across classified programs. You will design, implement, and sustain Windows and RHEL environments, ensuring high availability and DoD security compliance. A Secret clearance is required, with potential travel to other U.S.

locations up to 10%. This onsite role supports DoD closed-area operations. Responsibilities include collaborating with engineers, storage and HPC teams, and ensuring operational

Qualifications

• Typically requires a university degree or equivalent experience with senior-level IT background.
• Active and transferable U.S. government security clearance is required prior to start date.
• Experience administering Windows and Linux enterprise environments, with virtualization and storage skills.

Responsibilities

• Serve as SME for Windows and RHEL environments, leading design, implementation, troubleshooting, and sustainment.
• Collaborate across teams to deliver cost-effective IT solutions meeting current and future needs.
• Partner with customers, engineers, and HPC teams to design and resolve complex infrastructure challenges.
• Ensure high availability, reliability, and performance with proactive monitoring and improvement.
• Maintain cybersecurity compliance including RMF, NIST standards, and DoD requirements.
• Document procedures, mentor other admins, and support after-hours activities as needed.

Skills

Technical leadership

Problem solving

Communication

Education

Bachelor’s degree

Tools

Windows Server

RHEL

Active Directory

VMware

Storage management

Backup & Recovery

Job description

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 administrators through technical leadership, knowledge sharing, cross-training, and hands-on guidance.
• Work full time onsite within a Department of Defense (DoD) closed area and support occasional planned and unplanned activities outside standard business hours. Travel to other U.S. domestic locations may be required, up to 10% annually.
• Obtain applicable Department of Defense Directive (DoDD) 8140/8570 certification requirements (CompTIA Security+ CE or equivalent certification) within six months of the start date.

Qualifications You Must Have:

• Typically requires a University Degree or equivalent experience and a minimum of 8 years of prior relevant experience, or An Advance Degree in a related field and minimum 5 years experience
• Active and transferable Secret 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
• Experience administering Microsoft Windows and Red Hat Enterprise Linux (RHEL) server, desktop, or virtualized environments.
• Experience supporting enterprise infrastructure services and secure computing environments, including areas such as Active Directory, identity and access management, system configuration, patching, troubleshooting, virtualization, storage, backup and recovery, networking, or lifecycle management.

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

Position Role Type:

Onsite

Location:

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