System Administrator, Computing; HPC Sr. Analyst, Onsite - Tucson AZ

System Administrator, High Performance Computing (HPC) – P2 Senior Analyst

We are seeking a Senior Analyst (P2) for High Performance Computing Administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. The role is onsite in Tucson, Arizona, with relocation support provided to eligible candidates.

Pay Range: $66,000 – $130,000 per year.

• 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 moderate‑scope technical problems, including integration of HPC hardware, software, and operating systems.
• Understand software tools, automated scripts, batch schedulers, hardware, and system‑level troubleshooting to lead and support the engineering community.
• Perform OS tuning to maximize performance on HPC systems and standardize processes across DT functions.
• Collaborate with cybersecurity professionals to maintain security compliance.
• Provide documentation and training on advanced HPC processes; mentor junior team members.
• Obtain DoDD 8140/8570 certification (CompTIA Security+ CE or equivalent) and operating‑system certification within six months of hire.

• Bachelor’s degree (STEM preferred) or minimum 2 years of relevant experience; alternatively, 6 years of experience if no degree.
• Active U.S. security clearance (Secret) and U.S. citizenship required.
• Experience managing Windows and/or Linux server environments, directory services, and system hardening.
• Experience maintaining medium‑sized Microsoft Windows Server environments.
• Experience with Red Hat Enterprise Linux.

• Experience with HPC scheduling and monitoring tools (SLURM, Grid Engine, Ganglia).
• HPC experience in Linux environments.
• Project leadership, management, or project‑management experience in a DT domain.
• Advanced scripting experience.
• Active DoD Top‑Secret clearance.
• Hands‑on Windows and Unix security hardening and authentication service integration (LDAP).
• Experience in complex UNIX/Linux/Solaris environments.

• Values of safety, trust, respect, accountability, collaboration, and innovation.
• Relocation eligibility for eligible applicants.
• Comprehensive benefits package (medical, dental, vision, life, disability, 401(k) match, flexible spending accounts, paid time off, holidays, etc.).
• Annual incentive compensation programs (subject to level and collective bargaining).

Security clearance requirements: current and active U.S. DOD Secret clearance (DCSA CAS). Relocation support available per company policy.

RTX Corporation 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 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.