Principal System Administrator Linux

Job description

**Date Posted:**

2025-09-10
**Country:**

United States of America
**Location:**

MA101: Andover MA 350 Lowell St Essex 350 Lowell Street Essex, Andover, MA, 01810 USA
**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:**

DoD Clearance: Secret

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.

**Principal System Administrator** in Program Digital Services, collaborate with a diverse team to support fast-paced, critical programs with classified information system capabilities.

Success in this role means you are able to develop, implement and maintain secure, cost-efficient environments across various classified programs.

Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems.

**What You Will Do** :

+ Serve as a Subject Matter Expert (SME) with deep knowledge of at least one OS (Windows, Linux, etc.) to extensively design, implement, troubleshoot, and maintain both Linux and Windows Servers, Desktops, and the Virtual Environment of a large-scale enterprise network operating 24x7x365.
+ Collaborate effectively with diverse teams, including engineers, software developers, systems administration, storage, networking, tools, and high-performance computing teams, to resolve complex infrastructure and integration challenges.
+ Ensure strict alignment with relevant regulatory and cybersecurity frameworks (e.g., DFARS, RMF, NIST Cybersecurity Framework) in close partnership with cybersecurity teams to consistently maintain continuous compliance.
+ Operate in a fast-paced, fully on-site role within a DoD closed area, providing critical support for mission-critical systems and environments that demand near 24x7x365 uptime.
+ Provide comprehensive support for both planned and emergent tasks, which may include occasional responsibilities outside of standard working hours and travel up to 10% as required to support program objectives.
+ Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ or equivalent certification) within 6 months of the start date.
+ Start date will be set after DoD issues an interim clearance

**Qualifications You Must Have:**

+ Typically requires a bachelor's degree and a minimum of 5 years of prior relevant experience or an advanced degree and 3 years of direct experience.
+ The ability to obtain and maintain a US security clearance prior to the startdate is required (US citizenship is required as only US citizens are eligible for a security clearance).
+ Experience with Microsoft Windows operating systems.
+ Experience with Red Hat Enterprise Linux
+ Experience with secure system configurations, system hardening, application settings, and configuring customized user experiences.

**Qualifications We Prefer:**

+ Experience with ESXi and VMWare virtualization technologies.
+ Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills.
+ Experience with ADDS, DFS, WDS, WSUS, MECM/SCCM, MDT, PXE, PKI, Group Policy, Kerberos, Microsoft IIS, SQL, Skype, and Exchange.
+ Experience with RHEL, Linux and Windows integration tools (Centrify, Samba, SSSD, NIS), and with virtualization technologies including VMware (vCenter, vSphere, Horizon, ESXi, vSAN, VDS), Nutanix (AOS, Prism, CVM), and/or other virtual computing methods.
+ Experience with storage systems such as NETAPP, and with VDI technologies including Horizon, Profile Unity, and NVIDIA GPU virtualization (NLS, DLS).
+ Experience with monitoring and compliance assessment tools, vulnerability scanning, and auditing tools (ACAS, Splunk, Nessus, SCAP, STIG, Ivanti, Nagios, SolarWinds), and familiarity with security frameworks (CMMC, NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF).
+ Experience with scripting languages (PowerShell, Perl, Bash, Python, and C Languages), BASH scripting specifically for automation, and a strong understanding of networking concepts.

**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.

Relocation Eligibility

The salary range for this role is 82,000 USD - 164,000 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._

**Privacy Policy and Terms:**

Click on this link (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms
Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.

Required Skill Profession

Other General