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Raytheon · 2 months ago

Principal System Administrator (RHEL)

Marlborough, MA

Full-time

Onsite

Senior Level, Lead/Staff

$82K/yr - $164K/yr

5+ years exp

Raytheon is committed to helping the nation and allies defend freedoms and deter aggression through advanced engineering expertise. The Principal System Administrator (RHEL) will design, implement, troubleshoot, and maintain Linux servers while collaborating with various teams to support critical programs and ensure compliance with security frameworks.

Intellectual PropertyInternetWeb Hosting

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Serve as a Linux / Red Hat Enterprise Linux (RHEL) designing, implementing, troubleshooting, and maintaining physical and virtual Linux servers across a large-scale enterprise network. This includes 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 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

Must have a interim clearance to set a start date

Qualification

Red Hat Enterprise LinuxSystem AdministrationVirtualization TechnologiesAutomation ToolsContainerization TechnologiesSecurity FrameworksScripting SkillsCollaboration SkillsCommunication SkillsOrganizational Skills

Required

Typically requires a 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 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 virtualization technologies such as VMWare, ESXi, or similar platforms

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

Preferred

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

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)