High Performance Computing (HPC) Administrator, Principal Specialist, Tucson, AZ Onsite

Prattwhitney; Tucson (AZ); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical insurance

401(k) match

Paid time off

Flexible schedules

Employee assistance program

Job summary

RTX's Digital Technology division in Tucson, AZ is seeking a System Administrator for HPC. The role supports a heterogeneous Windows and Red Hat Linux environment and requires DoD security clearance and US citizenship. Onsite work with relocation support may be provided.

The candidate will contribute to HPC deployment, OS tuning, and security compliance while mentoring junior staff and collaborating across departments to standardize processes and improve performance.

Qualifications

• Experience in Windows and 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 and HPC scheduling/monitoring tools.

Responsibilities

• Work as a team member in a fast-paced technological environment.
• Help develop and implement new technologies based on industry best practices.
• Use troubleshooting techniques to resolve technical problems across HPC hardware, software, and OS.
• Understand software tools, automated scripts, batch schedulers, hardware, and system-level troubleshooting to support engineering.
• Perform OS tuning to maximize system performance on HPC systems.
• Work across DT functions to standardize processes and procedures.
• Collaborate with Cybersecurity to maintain security compliance.
• Provide documentation and training on advanced DT HPC processes.
• Mentor junior team members and pursue required DoD certification within 6 months.

Skills

Windows Server

Linux Server

Active DoD clearance

Red Hat Enterprise Linux

HPC scheduling tools

Education

University Degree or equivalent experience

Advanced Degree preferred

Tools

SLURM

Grid Engine

Ganglia

Job description

About RTX

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world‑class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry‑leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.

Role Overview

System Administrator, High Performance Computing (HPC) – P3 Principal Specialist level Raytheon Digital Technology (DT) Tucson AZ – Onsite Role This Principal Specialist (P3) High-Performance Computing (HPC) candidate will provide Raytheon Digital Technology with High Performance Computing Administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. This candidate will understand Windows Server internals, and knowledge of Linux fundamentals to include DNS, DHCP, AD, and server replication methods. This position is an onsite role in our Tucson, Arizona location. Relocation support will be provided to the selected applicant, if they meet company policy eligibility requirements.

Responsibilities

• Work as a team member in a fast-paced technological environment.
• Help develop and implement new technologies based upon industry best practices.
• Use troubleshooting techniques to resolve technical problems at a high scope and complexity to include the integration of High-Performance Computing hardware, software, and operating systems (OS).
• Understanding of software tools, automated scripts, batch schedulers, hardware, and system-level troubleshooting, to lead and support the engineering community.
• Perform OS tuning to maximize system performance on high performance computing systems.
• Work across DT functions to standardize processes and procedures.
• Work with Cybersecurity professionals to maintain security compliance requirements.
• Provide documentation and training on advanced DT HPC processes and procedures.
• Be a mentor to junior team members.
• Must be able to obtain required Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification and an Operating System Certification) within 6 months of hire date.

Qualifications – Must Have

• Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advanced Degree in a related field and minimum 3 years' experience
• Active and transferable U.S. government issued 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 in Windows 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 High Performance Computing scheduling and monitoring tools.

Qualifications – Prefer

• High Performance Computing (HPC) experience in a Linux environment.
• Experience in project leadership, management, or project management in a DT domain and basic to advance scripting experience.
• An active DoD Secret or Top-Secret Clearance.
• Advanced hands‑on experience with Windows and Unix security hardening, systems integrations, advanced troubleshooting, and authentication service integration (LDAP).
• Unix (Including Linux and Solaris), experience in a medium to high complex environment(s).
• Working knowledge of High-Performance Computing scheduling and monitoring tools such as SLURM, Grid Engine and Ganglia.

Relocation Eligibility

This role is relocation eligible for the selected applicant if they meet company policy criteria.

Clearance Information

This position requires a current and active security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm.

Compensation

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, 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, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

Equal‑Opportunity Statement

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, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.