Senior Linux Systems Administrator – Onsite, DoD Clearance

RTX; Town of Marlborough (NY); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

Short-term disability

Long-term disability

401(k) match

Flexible spending accounts

Flexible work schedules

Employee assistance program

Employee Scholar Program

Parental leave

Paid time off

Holidays

Job summary

RTX is seeking a Principal Linux/Windows Systems Administrator in Marlborough, MA for on-site support of classified programs. You will design, implement, and maintain secure, cost-efficient environments across Windows and Linux, with a focus on patching, hardening, imaging, and automation.

The role requires DoD security clearance eligibility (Interim Secret) and 100% onsite work in a closed-area environment, with occasional travel to RTX locations.

Qualifications

• University degree or equivalent experience; 5 years of relevant work experience, or an Advanced Degree with 3 years of experience

Responsibilities

• Serve as a Principal Systems Administrator supporting Windows and Linux enterprise environments, responsible for design, implementation, maintenance, patching, and troubleshooting of Windows Server, Windows 11, RHEL 7/8/9, and virtualized infrastructure in a 24x7x365 environment
• Design, deploy, and maintain virtual infrastructure using VMware ESXi and vCenter, including VM lifecycle management, host upgrades, performance tuning, and production workload support
• Engineer imaging, deployment, and automation solutions (MECM/SCCM, PXE, Windows imaging, in-place OS upgrades, scripted deployment)
• Administer core Windows services and integrations: Active Directory, Group Policy; certificate-based authentication; customized user environments
• Collaborate across DT, Engineering, Cyber Security, DevSecOps, Networking, Storage, and Tools teams to resolve complex infrastructure, integration, and compliance challenges
• Support on-site DoD closed-area operations, occasional after-hours and up to 10% travel to RTX locations in MA, RI, NH
• Must obtain DoDD 8140/8570 baseline certification (Security+ or equivalent)
• Position requires 100% onsite work in a closed area with up to 15% travel to RTX locations in MA, RI, NH
• Full-time 100% onsite position

Skills

Linux administration

VMware virtualization

PowerShell scripting

Active Directory

Group Policy

Security configuration hardening

Education

University degree or equivalent experience

Advanced degree in related field

Tools

MECM/SCCM

PXE boot services

OS imaging

Automated software deployment frameworks

VMware ESXi

vCenter

Job description

RTX is seeking a Principal Linux/Windows Systems Administrator in Marlborough, MA for on-site support of classified programs. You will design, implement, and maintain secure, cost-efficient environments across Windows and Linux, with a focus on patching, hardening, imaging, and automation.

The role requires DoD security clearance eligibility (Interim Secret) and 100% onsite work in a closed-area environment, with occasional travel to RTX locations.