RTX

3 days ago

Principal System Administrator-Pelham, NH (onsite)

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Source: Company careers pageValidated by: Fursa AI

Last checked: 5 hours agoStatus: Live

Job Summary

Support classified program infrastructure as a Principal System Administrator, providing system administration across heterogeneous Red Hat Enterprise Linux environments. Use virtualization and containerization technologies (VMware, KVM, Podman, Docker, Kubernetes/OpenShift) and collaborate with engineers, storage, networking, and HPC teams to solve complex integration issues. Partner with cybersecurity to maintain compliance with DFARS, RMF, and the NIST Cybersecurity Framework, while delivering on-site mission support and obtaining required DoD certifications.

Location: United States

Workplace: Onsite

Employment Type: Full time

Job Function: IT Operations (Systems/Network Admin)

Seniority: Mid level

Key Responsibilities

•Provide system administration in heterogeneous Red Hat Enterprise Linux (RHEL) environments.
•Operate virtualization and containerization technologies including VMware vCenter/vSphere, Horizon/ESXi, KVM, Podman, Docker, and Kubernetes/OpenShift.
•Collaborate with engineers, software developers, systems administrators, storage, networking, and HPC teams to resolve infrastructure and integration challenges.
•Partner with cybersecurity teams to ensure continuous compliance with DFARS, RMF, and the NIST Cybersecurity Framework.
•Deliver critical on-site support for mission systems in a closed DoD area, including responding to planned and emergent tasks.

Travel: Low travel

Pay and Benefits

Salary: USD 86,800 - 165,200 annually

Perks:Health InsuranceDentalVisionLife Insurance401kLong-term DisabilityFlexible SpendingParental LeavePaid LeaveHolidaysEmployee Assistance

Key Requirements

•Typically requires a university degree and at least 5 years of relevant experience, or an advance degree and at least 3 years of relevant experience.
•U.S. citizenship is required, and the ability to obtain an interim U.S. government security clearance is required prior to start date.
•Must have Linux or Windows experience and experience with server architectures and troubleshooting methods.
•Experience with at least one of: Active Directory, VMware, MySQL, or networking administration.
•Experience with secure system configurations, system hardening, application settings, and tailoring Linux environments.

Experience:5+ years

Education:Bachelor's

Skills:LeadershipTeamworkCommunicationCollaborationOrganizational skills

Certifications:DoD 8140DoD 8570CompTIA Security+

Tech Stack:Red Hat Enterprise Linux (RHEL)Redhat 8Redhat 9VMware vCenterVSphereHorizonESXiKVMPodmanDockerKubernetesOpenShiftActive DirectoryMySQLAnsibleRed Hat SatelliteBashPythonPerlC

Eligibility

Nationality:US National

Work Authorization:Authorization required. Sponsorship not provided.

Security Clearance:Secret

Company Brief

RTX

Designs, manufactures, and services aerospace and defense systems, including aircraft engines, avionics, aerostructures, missiles, and cybersecurity solutions for commercial, military, and government customers worldwide.

Industry: Aerospace Manufacturing

Company Size: Enterprise (1,001+ employees)

Revenue: USD 1B+

Growth: Public Company

Valuation: Public Company (Market Cap in USD)

Funding: IPO / Publicly Listed

Headquarters: Arlington, United States

Founded: 2020

Website

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RTX