System Administrator, High Performance Computing (HPC) at Raytheon Digital Technology (DT)

Compensation

$86,800 – $165,200/yr

Location: Tucson, Arizona
Type: Full-time
Posted: Jun 8, 2026

Description

Raytheon Digital Technology (DT) is seeking a Principal Specialist (P3) System Administrator for High Performance Computing (HPC) in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. This onsite role in Tucson, Arizona involves developing and implementing new technologies, resolving high-scope technical problems, performing OS tuning, ensuring cybersecurity compliance, providing documentation and training, and mentoring junior team members. The position requires a strong understanding of Windows Server and Linux fundamentals.

Required Skills

Windows Server
Red Hat Enterprise Linux
DNS
DHCP
AD
Server Replication
Software Tools
Automated Scripts
Batch Schedulers
Hardware
System-Level Troubleshooting
OS Tuning
Cybersecurity
Documentation
Training
Mentorship
DoDD 8140 / 8570 Certification
CompTIA Security+ CE
Operating System Certification
Directory Services Management
System Hardening
HPC Scheduling and Monitoring Tools

Additional Information

Required Previous Experiences: 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.
Preferred Qualifications: High Performance Computing (HPC) experience in a Linux environment.
An active DoD Secret or Top-Secret Clearance.
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.