HPC Systems Administrator — Windows & Linux (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

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.