Linux Systems Administrator

System Administrator, High Performance Computing (HPC) – P3 (Principal Specialist) This Principal Specialist (P3) High-Performance Computing candidate will provide Raytheon Digital Technology with High Performance Computing Administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment. What You Will Do: 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. Understand 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 Digital Technology functions to standardize processes and procedures. Work with Cybersecurity professionals to maintain security compliance requirements. Provide documentation and training on advanced Digital Technology HPC processes and procedures. Be a mentor to junior team members. 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 You Must Have: University degree or equivalent experience and minimum 5 years prior relevant experience, or advanced degree and minimum 3 years of experience. Active and transferable U.S. government‑issued security clearance is required prior to start date. U.S. citizenship is required. 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 We Prefer: High Performance Computing (HPC) experience in a Linux environment. Experience in project leadership, management, or project management in a Digital Technology domain and basic to advanced 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. Relocation Relocation support is provided to the selected applicant if they meet company policy eligibility requirements. Security Clearance Active and transferable U.S. government‑issued security clearance is required prior to start date. U.S. citizenship is required. Benefits Medical, dental, vision, and life insurance. Short‑term and long‑term disability insurance. 401(k) match and flexible spending accounts. Flexible work schedules and employee assistance program. Employee Scholar Program, parental leave, paid time off, and holidays. Annual short‑term and/or long‑term incentive compensation programs, subject to business and individual performance. Equal Employment Opportunity 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. #J-18808-Ljbffr