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Principal System Administrator

RTX


Job Location:

San Jose, CA - USA

Yearly Salary: USD 118300 - 224900
Posted: 4 September 2026 (13 hours ago)
Application Deadline: 2 December 2026
Vacancies: 1 Vacancy

Job Summary

Date Posted:

Country:

United States of America

Location:

US-CA-SAN JOSE-826 200 Holger Way BLDG 826

Position Role Type:

Onsite

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:

TS/SCI - Current

Security Clearance Status:

Active and existing security clearance required on day 1

Raytheon Company managed by Collins Aerospace

At RTX the worlds largest aerospace and defense company 185000 great minds are united by purpose and inspired to make a difference solving the worlds 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.

Collins Aerospace is a leader in technologically advanced intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

At Applied Signal Technology (AST) the foundation of everything we do is rooted in our values and a higher calling to help our nation and allies defend freedoms and deter aggression. Our team solves tough meaningful problems that create a safer more secure is seeking a Principal Systems Administrator to join our team.

This is an ONSITE role at our San Jose CA location. To find out more about AST please click the following link - Applied Signal Technology: WHO WE ARE

What You Will Do

  • Provide IT systems administration in a heterogeneous Microsoft Windows and RedhatEnterpriseLinuxenvironment.

  • Understandingand knowledge of Windows Server internals or Linux fundamentals to include DNS DHCP AD and server replication methods.

  • Working as a team member in troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).

  • Work with Cybersecurity professionals to maintain security requirements.

  • Provide documentation and training on advanced IT processes and procedures and other tasks as assigned.

  • Must be able to obtain certification requirements (CompTIA Security CE or equivalent certification) within a reasonable amount of time

  • Systems are operational 24x7 and occasionally require work effort beyond standard work hours.

  • Travelrequiredas businessneedsdictate to other US Domestic locations up to 10% per year.

Qualifications You Must Have

  • Typically requires a degree in Science Technology Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience

  • Experience with Windows and Linux Operating systems.

  • Experience with scripting.

  • Experience with helpdesk operations ticket troubleshooting and resolution.

  • Experience with audit logs collection.

  • Experience with system hardening.

  • Experience with working in a team environment and collaborating with others.

  • Experience working face to face with others and being comfortable in a demanding environment.

  • Active and transferable U.S. governmentissued Top Secret SCI (TS/SCI) security clearance is required prior to start date with the ability to obtain a polygraph after start.

  • U.S. citizenship isrequired as only U.S. citizens are eligible for a security clearance.


Qualifications We Prefer

  • Experience serving as a technical SME or primary point of contact for patching vulnerability remediation or compliance initiatives.

  • Experience with VMware virtualization technologies including ESXi vCenter VM lifecycle management and host upgrades.

  • Experience with securing system configurations system hardening STIG/EVAL STIG implementation vulnerability remediation and compliance. Familiarity with cybersecurity and compliance tooling such as ACAS SCAP Splunk STIG Viewer and audit support processes.

  • Experience with MECM/SCCM PXE boot services OS imaging and automated software deployment frameworks.

  • Experience with enterprise Windows services including Active Directory Group Policy and identity integration.

  • Experience working in a classified environment.

  • Existing TS/SCI with polygraph

What We Offer

  • Medical dental and visioninsurance

  • Three weeks of vacation for newly hiredemployees

  • Generous 401(k) plan that includes employer matching funds and separate employerretirement contribution including a Lifetime Income Strategyoption

  • Tuition reimbursement program

  • Student Loan RepaymentProgram

  • Life insurance and disabilitycoverage

  • Optional coverages you can buy pet insurance home and auto insuranceadditionallifeand accident insurancecritical illnessinsurance group legal ID theft protection

  • Birth adoption parental leave benefits

  • Ovia Health fertility and familyplanning

  • Adoption Assistance

  • AutismBenefit

  • Employee Assistance Plan including up to 10 free counselingsessions

  • Healthy You Incentives wellness rewards program

  • Doctor on Demand virtual doctorvisits

  • Bright Horizonschildand elder care services

  • Teladoc Medical Experts second opinionprogram

  • Eligible for relocation

  • AndMore!

Learn More & Apply Now!

Do you want to be a part of something bigger A team whose impact stretches across theworld and even beyond At Collins Aerospace our Mission Systems team helps civilianmilitary and government customers complete their most complex missions whatever andwherever they may be. Our customers depend on us for intelligent and securecommunications missionized systems for specializedaircraftand spacecraft andcollaborative space solutions. By joining our teamyoullhave your own critical part to play inensuring our customer succeeds today whileanticipatingtheir needs for tomorrow. Are youup for the challenge Join our mission today

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees as they are essential to the development of our products.

As part of our commitment to maintaining a secure hiring process candidates may be asked to attendselect 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 118300 USD - 224900 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 candidates 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 companys 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.

Privacy Policy and Terms:

Click on this link to read the Policy and Terms


Required Experience:

Staff IC


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