Senior Principal System Administrator

RTX
Remote United States Full-time 🌐 English
RT
Salary: $108k - $205k/year
Experience: Senior
Added to JobCollate: April 15, 2026

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RTX is seeking a Senior Principal System Administrator to manage and integrate systems, focusing on authentication, patch management, and vulnerability management. This remote, full-time role requires extensive experience with Windows/Linux servers, networking, VMware, Active Directory, and a U.S. government issued Secret security clearance.

Job Description

Senior Principal System Administrator will utilize knowledge and skills regarding System & Service integration to include, but not limited to, authentication protocols, patch management, network segregation, and vulnerability management. The role requires experience with Windows and/or Linux Server Operating Systems (OS), troubleshooting skills of networking, subnetting, site to site VPNs, and firewalls, and experience configuring servers, workstations, storage arrays. 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.RequirementsExperience with Windows and/or Linux Server Operating Systems (OS)Troubleshooting skills of networking, subnetting, site to site VPNs, and firewallsExperience configuring servers, workstations, storage arraysExperience setting up and manage VMware hosts, clusters, virtual servers, and networkingExperience managing Windows Active Directory, users, service accounts, groups, computer objects, and policiesDepartment of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification)Experience with DFARS, RMF, NIST Cybersecurity FrameworkExperience using Information Technology project lifecycle management processesExperience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methodsExperience supporting engineers in software, simulations, and hardware developmentExperience with Microsoft WSUS, SCCM, and/or ExchangeScripting ExperienceBenefitsMedicalDentalVisionLife InsuranceShort-term DisabilityLong-term Disability401(k) matchFlexible Spending AccountsFlexible Work SchedulesEmployee Assistance ProgramEmployee Scholar ProgramParental LeavePaid Time OffHolidaysOriginally posted on Himalayas

Full Description

Senior Principal System Administrator will utilize knowledge and skills regarding System & Service integration to include, but not limited to, authentication protocols, patch management, network segregation, and vulnerability management. The role requires experience with Windows and/or Linux Server Operating Systems (OS), troubleshooting skills of networking, subnetting, site to site VPNs, and firewalls, and experience configuring servers, workstations, storage arrays. 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.RequirementsExperience with Windows and/or Linux Server Operating Systems (OS)Troubleshooting skills of networking, subnetting, site to site VPNs, and firewallsExperience configuring servers, workstations, storage arraysExperience setting up and manage VMware hosts, clusters, virtual servers, and networkingExperience managing Windows Active Directory, users, service accounts, groups, computer objects, and policiesDepartment of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification)Experience with DFARS, RMF, NIST Cybersecurity FrameworkExperience using Information Technology project lifecycle management processesExperience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methodsExperience supporting engineers in software, simulations, and hardware developmentExperience with Microsoft WSUS, SCCM, and/or ExchangeScripting ExperienceBenefitsMedicalDentalVisionLife InsuranceShort-term DisabilityLong-term Disability401(k) matchFlexible Spending AccountsFlexible Work SchedulesEmployee Assistance ProgramEmployee Scholar ProgramParental LeavePaid Time OffHolidaysOriginally posted on Himalayas

Required Skills

Senior-IT-Systems-Administrator Senior-Systems-Administrator Senior-System-Administrator Senior-Infrastructure-Administrator Senior-Mainframe-System-Administrator Senior-Technical-Application-Administrator Senior-Systems-Operations-Architect

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