Jobs

Senior Principal Linux Administrator
el segundo, California, United States of America
·
On-site
·
Full-time
·
1mo ago
Compensation
$118,300 - $118,300
Benefits & Perks
•Healthcare
•401(k)
•Flexible Hours
•Parental Leave
•Mental Health
•Healthcare
•401k
•Flexible Hours
•Parental Leave
•Mental Health
Required Skills
Active Directory
WSUS
VMware
NETAPP
Windows administration
Linux administration
Backup and recovery
Server architecture
DevSecOps
Kubernetes
System Administrator
Position Details
Date Posted: 2026-01-28
Country: United States of America
Location: US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04
Role Type: Onsite
Security Clearance Type: DoD Clearance: Top Secret
Security Clearance Status: Active and existing security clearance required on day 1
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
About the Role
At Raytheon, 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. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.
We are seeking an experienced System Administrator that will be working in a highly collaborative, multi-platform and multi–disciplined environment.
Responsibilities
- Provide technical guidance and mentorship to the team
- Serve as a technical project leader
- Participate in meetings with customers, providing technical guidance and best practice to ensure successful outcomes
- Provision, install/configure, operate, and maintain systems hardware and software related to a Windows/Linux infrastructure for classified programs
- Manage servers (software and hardware)
- Manage storage (logical and physical)
- Implement cross platform authentication and access management
- Perform data backup and restoration
- Configure software and licenses
- Provide workstation support
- Assist with troubleshooting, patching, and support Windows, ESXi and Linux Systems
- Provide IT systems administration in a heterogeneous Microsoft Windows and Red Hat Enterprise Linux environment
- Understand and maintain knowledge of Windows Server internals to include DNS, DHCP, AD, and server replication methods
- Work as a team member in a fast-paced technological environment
- Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS)
- Install and configure software applications requested by end users
- Work with Cybersecurity professionals to maintain security requirements and provide documentation on advanced IT processes and procedures
- Perform other tasks as assigned
- Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date
Note: Systems are operational 24x7 and occasionally require work effort beyond standard work hours. Full time 100% Onsite position.
Qualifications You Must Have
- Typically requires a University degree or equivalent experience and a minimum of 8 years of prior relevant experience, or an Advanced Degree in a related field and a minimum of 5 years experience
- Active and transferable U.S. government issued Top Secret security clearance is required prior to start date
- U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
- SME level experience with some of, but not limited to, the following technologies: Active Directory, WSUS, VMware, NETAPP, networking administration experience, Windows or Linux administration, backup, and recovery enterprise suites
- Experience with Server architecture and troubleshooting methods and be able to assist in developing solutions and documentation to a variety of technical problems
- Experience in Dev Sec Ops, containerization, Kubernetes
Qualifications We Prefer
- Experience using VMWare v Center, v Sphere, Windows desktops (Windows 10, 11), Splunk and ESXi and/or other virtual computing methods
- Scripting/automation PowerShell, Bash
- Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) and an Operating System Certification
- Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF
- Experience with data storage, NAS, and SAN technologies and solutions
- Experience supporting engineers in software, simulations, and hardware development
- Experience with Microsoft WSUS, SCCM, and/or Exchange
- High Performance Computing (HPC) experience in a Linux environment
Compensation and Benefits
Salary Range: $118,300 USD - $224,900 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
- 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.
Additional Information
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.
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.
About RTX
RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.
Equal 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.
Total Views
0
Apply Clicks
0
Mock Applicants
0
Scraps
0
Similar Jobs

(Global) Senior Finance Analyst
Danaher · Budapest, Hungary

Senior Service Purchaser
Schneider Electric · Singapore

Supervisor(a) Operativo(a) Sector Retail
DHL · Bogotá, Cundinamarca, Colombia

Facilities Engineer Staff Ocala, Florida
Lockheed Martin · ocala

Consultant, Marketing Services, Advisors and Consulting Services
Mastercard · Kuala Lumpur, Malaysia
About Raytheon (RTX)

Raytheon (RTX)
PublicRaytheon Technologies is a major aerospace and defense contractor that develops advanced technologies for commercial aerospace, defense, and intelligence applications. The company provides missiles, defense systems, aircraft engines, avionics, and cybersecurity solutions.
10,001+
Employees
Arlington
Headquarters
Reviews
3.1
3 reviews
Work Life Balance
2.5
Compensation
1.5
Culture
1.5
Career
2.0
Management
1.0
15%
Recommend to a Friend
Pros
Technical work is fulfilling
Opportunities for continued learning
Meaningful technical projects
Cons
Mass layoffs without notice
Poor management treatment of employees
Limited career advancement opportunities
Salary Ranges
33 data points
Junior/L3
Mid/L4
Senior/L5
Junior/L3 · HR System EV5 Production Support Lead
1 reports
$138,000
total / year
Base
$120,000
Stock
-
Bonus
-
$138,000
$138,000
Interview Experience
10 interviews
Difficulty
2.6
/ 5
Duration
14-28 weeks
Offer Rate
60%
Experience
Positive 40%
Neutral 40%
Negative 20%
Interview Process
1
Application Review
2
Recruiter Screen
3
Technical Assessment
4
Technical Interview
5
Final Round Interview
6
Offer
Common Questions
Technical Knowledge
Behavioral/STAR
Past Experience
Coding/Algorithm
Culture Fit
News & Buzz
RTX subsidiary wins $1B Army contract - Virginia Business
Source: Virginia Business
News
·
5w ago
RTX: Raytheon wins $197 million contract to deliver MS-110 multispectral reconnaissance system to Poland - Defence Industry Europe
Source: Defence Industry Europe
News
·
5w ago
RTX, Northrop Grumman Rise In Defense-Heavy Earnings Week - Investor's Business Daily
Source: Investor's Business Daily
News
·
5w ago
RTX (NYSE:RTX) Surpasses Forecasts with Robust Q4 Performance in CY2025 - Bitget
Source: Bitget
News
·
5w ago