High Performance Computing (HPC) Administrator, Principal Specialist – P3

Prattwhitney; Tucson (AZ); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Flexible work schedules

401(k) match

Job summary

Prattwhitney in Tucson, Arizona is seeking a System Administrator for High Performance Computing (HPC) to support Microsoft Windows and Red Hat Enterprise Linux environments. The position requires a U.S. Secret security clearance and citizenship and involves advanced troubleshooting of complex technical problems.

Ideal candidates will have at least 5 years of relevant experience and a strong background in HPC scheduling tools. Benefits include medical insurance and flexible work schedules.

Qualifications

• 5+ years of relevant experience or an advanced degree with 3 years of experience.
• Active U.S. government‑issued Secret security clearance.
• Experience with Windows Server and Linux Server environments.

Responsibilities

• Work as part of a technological team and resolve complex technical problems.
• Perform operating-system tuning to maximize performance on HPC systems.
• Collaborate with cybersecurity professionals to maintain security compliance.

Skills

Windows Server management

Linux Server environments

HPC scheduling and monitoring tools

Advanced troubleshooting

Scripting

Education

University degree or equivalent experience

Tools

Microsoft Windows Server

Red Hat Enterprise Linux

Job description

About the Role

System Administrator, High Performance Computing (HPC) – Principal Specialist (P3). Onsite position located in Tucson, Arizona. Requires an active U.S. Secret security clearance and U.S. citizenship. The role supports heterogeneous Microsoft Windows and Red Hat Enterprise Linux HPC environments.

Key Responsibilities

• Work as a member of a fast‑paced technological team.


• Help develop and implement new technologies based on industry best practices.


• Use advanced troubleshooting techniques to resolve high‑scope, complex technical problems involving HPC hardware, software, and operating systems.


• Utilize software tools, automated scripts, batch schedulers, hardware, and system‑level troubleshooting to lead and support the engineering community.


• Perform operating‑system tuning to maximize performance on HPC systems.


• Standardize processes and procedures across Digital Technology functions.


• Collaborate with cybersecurity professionals to maintain security compliance requirements.


• Provide documentation and training on advanced Digital Technology HPC processes and procedures.


• Mentor junior team members.

Required Qualifications

• University degree or equivalent experience with a minimum of 5 years of relevant experience, or an advanced degree with a minimum of 3 years of experience.


• Active U.S. government‑issued Secret security clearance required before the start date.


• U.S. citizenship.


• Experience in Windows Server and/or Linux Server environments, including directory services management and system hardening.


• Experience maintaining a medium‑sized Microsoft Windows Server environment.


• Experience with Red Hat Enterprise Linux.


• Experience with HPC scheduling and monitoring tools.


• Must obtain Department of Defense Directive 8140/8570 certification (CompTIA Security+ CE or equivalent) and an operating‑system certification within 6 months of hire.

Preferred Qualifications

• Experience with HPC scheduling and monitoring tools such as SLURM, Grid Engine, and Ganglia.


• Project leadership or management experience in a Digital Technology domain.


• Advanced scripting experience.


• Active DoD Secret or Top‑Secret clearance.


• Advanced hands‑on experience with Windows and Unix security hardening, system integrations, advanced troubleshooting, and authentication integration (LDAP).


• Experience in medium to high‑complexity Unix environments.

Benefits

• Medical, dental, and vision insurance.


• Life insurance, short‑term and long‑term disability.


• 401(k) match and flexible spending accounts.


• Flexible work schedules and Employee Assistance Program.


• Employee Scholar Program, parental leave, paid time off, and holidays.


• Eligibility for short‑term and long‑term incentive compensation programs based on level.

Relocation

Relocation support may be provided to the selected applicant if company policy eligibility criteria are met.

Equal Opportunity Employer

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 in employment for qualified individuals with a disability and protected veterans in compliance with the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.