Linux System Administrator

Date Posted:

2026-11-03



Country:

United States of America



Location:

XX-XX-UNDISCLOSED



Position Role Type:

Hybrid



U.S. Citizen, U.S. Person, or Immigration Status Requirements:

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​



Security Clearance Type:

Secret - Current



Security Clearance Status:

Active and existing security clearance required on day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

OPPORTUNITIES ARE SHIPBOARD ON AN OCEAN-GOING MARINE VESSEL, WORKING EXTEND HOURS FOR MULTIPLE WEEK ROTATIONS, FOLLOWED BY MULTIPLE WEEK HOME LEAVES

Raytheon is currently seeking a Linux System Administrator to support the Sea Based X-Band Radar, (XBR) program.  The team is composed of a multi-disciplinary group of 25 field engineers working collaboratively with internal and external customers and programs.  The mission provides cutting-edge missile defense radar system capabilities to our nation’s warfighters around the world, and around the clock.  This team is deployed at undisclosed locations on an ocean-going vessel providing direct support to ensure the warfighter has the most reliable data to meet the challenges our nation faces. 

What You Will Do:

• Work aboard the vessel for approximately (3) 70-day rotations per year, each followed by extended home leaves.
• Evaluates, recommends, installs, and supports the radar’s local area network (LAN) hardware and software. 
• Maintain technical expertise in all areas of network and computer hardware and software interconnection and interfacing, such as routers, switches, firewalls, computer systems, etc. 
• Archives data, transfers archived data off the marine vessel and perform configuration management of system software. 
• Manages user accounts and system security settings. 
• Supports mission operations staff and works closely with data processor and signal processor system engineers. 

Qualifications you must have:

• Successfully pass an annual mariner physical examination. 
• Exposure to heights will be required when being transported on and off the vessel and the ideal candidate will not be hindered by motion sickness.
• Ability to live and work with others in close quarters for long durations at sea.
• Experience with computer systems administration, maintenance and fault isolation/troubleshooting in a networked or standalone environment to include:
  • Computing hardware and operating systems installation, (including cabling and peripherals).
  • NetApp NAS filters and clustered Data ONTAP (cDOT).
  • Microsoft Windows Server including DNS, Active Directory, and Group Policy.

Qualifications we prefer:

• Familiarity with UNIX to include the ability to write and understand Perl and shell scripts and good troubleshooting skills.
• ACAS and HBSS administration and maintenance experience.
• System software and hardware to include operating systems experience, (Windows, Red Hat Enterprise Linux, NetApp Clustered Data ONTAP and Cisco IOS) and diagnostics. 
• VMware vSphere administration and maintenance experience.
• Installation and configuration of NetBackup.
• Experience in the management of computer system security actions and/or in the development of the procedures that support such actions.

 What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm  

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.Hired applicants may be eligible for benefits, including but not limited to, 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, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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.

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