Principal Linux Systems Administrator

Overview

Raytheon has an opportunity for a Principal Linux System Administrator based in Pelham, NH for operational support and sustainment for a high priority operational environment which supports a critical U.S. Government mission. This position will support an evolving system with opportunities for the candidate to provide technical input and direction for the architectural changes necessary to support growing requirements of the system.

This position is 100% onsite.

Location:

US-NH-PELHAM-PE1 ~ 50 Bush Hill Rd ~ BLDG 1

Date Posted:

Country:
United States of America

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

• Provide System Administration in a heterogeneous Red Hat 8 & 9 Enterprise Linux environment.
• Utilize virtualization and containerization technologies, including VMware vCenter, vSphere, Horizon, ESXi, KVM, Podman, Docker, and Kubernetes/Open Shift.
• Collaborate with engineers, software developers, systems administrators, storage, networking, and high-performance computing teams to resolve complex infrastructure and integration challenges.
• Partner with cybersecurity teams to ensure continuous compliance with regulatory and security frameworks such as DFARS, RMF, and the NIST Cybersecurity Framework.
• Provide critical, on-site support for mission systems in a closed DoD area, responding to both planned and emergent tasks, with occasional work outside standard hours and up to 10% travel as required.
• Obtain and maintain DoD 8140 / 8570 certification (e.g., CompTIA Security+ or equivalent) within six months of hire.
• This position is 100% onsite role.

• Typically requires a bachelor’s degree and a minimum of 5 years of prior relevant experience or a master’s degree and minimum of 3 years of prior relevant experience.
• Must have active and transferable current U.S. government issued secret clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Experience with Red Hat Enterprise Linux (RHEL), including system installation, administration, patching, and troubleshooting in enterprise environments. Experience with secure system configurations, system hardening, application settings, and tailoring Linux environments.
• Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills.
• Deep experience with Red Hat Enterprise Linux (RHEL) and its ecosystem, including authentication and identity services (SSSD, LDAP, Kerberos, NIS) and file sharing/integration services (Samba, NFS).
• Expertise with automation and configuration management tools such as Ansible and Red Hat Satellite, along with strong scripting skills in Bash, Python, Perl, or C to support provisioning, patching, and lifecycle management.
• Familiarity with enterprise storage systems (e.g., Net App) and virtual desktop infrastructure (VDI) technologies such as Horizon, Profile Unity, and NVIDIA GPU virtualization (NLS, DLS).
• Proficiency with monitoring, vulnerability scanning, and compliance assessment tools (ACAS, Splunk, Nessus, SCAP, STIG, Nagios, Solar Winds) and working knowledge of security frameworks (CMMC, NISPOM, JAFAN, JSIG, DFARS, DoD RMF).

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:
Trust, Respect, Accountability, Collaboration, and Innovation. Relocation assistance is available.

Relocation eligible

Learn More & Apply Now

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 86,800 USD - 165,200 USD. The salary range…