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Raytheon

Principal System Administrator (RHEL)

Raytheon, Marlborough, Massachusetts, us, 01752

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Principal System Administrator (RHEL) – Raytheon Join to apply for the

Principal System Administrator (RHEL)

role at

Raytheon .

Location:

Marlborough, MA 01752, USA Position Role Type:

Onsite Security Clearance:

Active and transferable U.S. government‑issued Secret clearance required prior to start date. U.S. citizenship required. Date Posted:

2025-10-16

What You Will Do

Serve as a Linux / Red Hat Enterprise Linux (RHEL) system administrator, designing, implementing, troubleshooting, and maintaining physical and virtual Linux servers across a large‑scale enterprise network. Responsibilities include system hardening, patching, automation with Ansible, provisioning with Kickstart, access control management, lifecycle management with Red Hat Satellite, virtualization with KVM, containerization with Podman or Docker, and hybrid cloud integrations with OpenShift and Kubernetes.

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 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.

Must have an interim clearance to set a start date.

Qualifications You Must Have

Bachelor’s degree and a minimum of 5 years of prior relevant experience, or an advanced degree and 3 years of direct experience.

Active and transferable U.S. government‑issued Secret security clearance required prior to start date. U.S. citizenship required.

Experience with Red Hat Enterprise Linux (RHEL), including system installation, administration, patching, and troubleshooting in enterprise environments.

Experience with virtualization technologies such as VMware, ESXi, or similar platforms.

Experience with secure system configurations, system hardening, application settings, and tailoring Linux environments.

Qualifications We Prefer

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.

Hands‑on experience with virtualization and containerization technologies, including VMware vCenter, vSphere, Horizon, ESXi, KVM, Podman, Docker, and Kubernetes/OpenShift.

Familiarity with enterprise storage systems (e.g., NetApp) 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, SolarWinds) and working knowledge of security frameworks (CMMC, NISPOM, JAFAN, JSIG, DFARS, DoD RMF).

What We Offer

Salary range: $82,000 – $164,000 USD.

Benefits: medical, dental, vision, life insurance, short‑term disability, long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, parental leave, paid time off, holidays.

Relocation eligibility.

Potential for annual short‑term and long‑term incentive compensation.

Seniority level Mid‑Senior level

Employment type Full‑time

Job function Information Technology

Industries Defense and Space Manufacturing

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status. RTX provides affirmative action for qualified individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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