RTX · 1 day ago
Senior Principal High Performance Computing (HPC) Administrator P4 ONSITE Tucson, AZ
US-AZ-TUCSON-M05 ~ 1151 E Hermans Rd ~ BLDG M05 (External Site)
Full-time
Onsite
Senior Level, Lead/Staff
5+ years expRTX is an Aerospace and Defense company that provides advanced systems and services for commercial, military, and government customers worldwide. They are seeking a Senior Principal High Performance Computing (HPC) Administrator to manage High Performance Computing Administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment, ensuring system performance and security compliance. The role involves troubleshooting complex technical problems, implementing new technologies, and mentoring junior team members.
AerospaceManufacturingSecuritySensorTelecommunications
No H1B
Security Clearance RequiredU.S. Citizen Only
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 in the use 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
Qualification
Required
The role typically requires a University Degree or equivalent experience and minimum 8 years prior relevant experience, or an Advanced Degree in a related field and minimum 5 years' experience
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
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
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
DoD Clearance: Secret
Active and existing security clearance required on day 1
Preferred
High Performance Computing (HPC) experience in a Linux environment
Experience with High Performance Computing scheduling and monitoring tools
Experience in Project Leadership, Management, or Project management in an DT domain 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
Working knowledge of High-Performance Computing scheduling and monitoring tools such as SLURM, Grid Engine and Ganglia
Benefits
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
Holidays
Company
RTX
RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.
10001+ employees
Funding
Current Stage
Public CompanyTotal Funding
$3.2MKey Investors
LIFT Ecosystem Accelerator
2024-02-22Grant· $0.2M
2019-06-09Acquired
2010-01-14Grant· $3M
Leadership Team
Daniel Conroy
Chief Technology Officer - Digital
Kevin DaSilva
Corporate Vice President & Treasurer
Recent News
Business Insider
2026-01-09
Morningstar.com
2026-01-08
2026-01-08
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