Sr. System Administrator

Posted 4 Days Ago
Be an Early Applicant
Lowell Junction, Andover, MA, USA
In-Office
96K-182K Annually
Senior level
Aerospace • Defense
The future of aerospace and defense
The Role
Administer and secure Windows and Red Hat Enterprise Linux systems in classified environments. Maintain DNS, DHCP, Active Directory, server replication, virtualization, and hardened configurations. Collaborate with cybersecurity teams, support patching and vulnerability remediation, document procedures, train users, and help define infrastructure solutions. The role is fully onsite, supports 24x7 operations, requires occasional work outside standard hours, and requires an active Secret clearance and U.S. citizenship.
Summary Generated by Built In

Date Posted:

2026-10-28

Country:

United States of America

Location:

US-MA-ANDOVER-AN5 ~ 356 Lowell St ~ AN5 BRISTOL BLDG

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:

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.


Our Digital Technology (DT) organization ensures that Raytheon teammates across the globe are able to communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world.


Sr. System Administrator based in Andover, MA, internally known as Sr. Information Workplace Services professional who will collaborate and support exciting, critical programs with classified information system capabilities. Success in this role means you can 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:

  • Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment.
  • Understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods. 
  • Work as a team member in a fast-paced technological environment.  
  • 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 Department of Defense Directive (DoDD) 8140 / 8570 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.
  • Full time 100% onsite positioned in Tewksbury MA

Qualifications You Must Have:

  • Typically requires A University Degree or equivalent experience and minimum 5 years of prior relevant experience, or an Advanced Degree in a related field minimum 3 years experience
  • Ability to obtain a U.S. government issued Secret security clearance is required prior to start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
  • Experience administering and securing Windows and RHEL servers
  • Experience with VMware virtualization
  • Experience with securing system configurations, system hardening
  • Experience with PowerShell scripting 

Qualifications We Prefer:

  • Experience serving as a technical SME or primary point of contact for patching, vulnerability remediation, or compliance initiatives.
  • Hands-on experience with MECM/SCCM, PXE boot services, OS imaging, and automated software deployment frameworks.
  • Familiarity with NetApp storage and/or HPC environments.
  • Experience with enterprise Windows services, including Active Directory, Group Policy, and identity integration.
  • Familiarity with cybersecurity and compliance tooling, such as ACAS, SCAP, Splunk, STIG Viewer, and audit support processes.

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 assistance is available.  
  • Relocation assistance available, provided final candidate meets eligibility requirements 

  

Learn More & Apply Now 

  • 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 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 95,500 USD - 181,700 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 to read the Policy and Terms

Skills Required

  • University degree or equivalent experience and at least 5 years of relevant experience, or an advanced degree with at least 3 years of experience
  • U.S. citizenship
  • Active and transferable U.S. government-issued Secret security clearance before the start date
  • Experience administering and securing Windows and Red Hat Enterprise Linux servers
  • Experience with VMware virtualization
  • Experience securing system configurations and performing system hardening
  • Experience with PowerShell scripting
  • Ability to obtain DoD 8140/8570 certification, such as CompTIA Security+ CE or equivalent, within a reasonable timeframe
  • Experience as a technical subject matter expert or primary contact for patching, vulnerability remediation, or compliance initiatives
  • Hands-on experience with MECM/SCCM, PXE boot, OS imaging, and automated software deployment frameworks
  • Familiarity with NetApp storage or HPC environments
  • Experience with Active Directory, Group Policy, and identity integration
  • Familiarity with ACAS, SCAP, Splunk, STIG Viewer, and audit support processes

RTX Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about RTX and has not been reviewed or approved by RTX.

  • Retirement Support — 401(k) programs are described with employer matching and, in many cases, an additional company retirement contribution, with a student‑loan repayment feature that can substitute for the match in eligible situations. Plan materials also reference automatic enrollment and other structural supports that strengthen long‑term savings.
  • Healthcare Strength — Benefits materials highlight comprehensive medical, dental, and vision coverage alongside wellness tools and incentives. HSA‑eligible options with company contributions are also referenced on careers and benefits pages.
  • Parental & Family Support — Program descriptions point to paid parental leave, backup childcare resources, and family supports such as birth/adoption benefits and an Autism Benefit (availability varies by unit and location). Dependent and elder‑care resources are also noted.

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The Company
HQ: Arlington, VA
185,000 Employees
Year Founded: 2020

What We Do

With more than 185,000 global employees, RTX pushes the limits of technology and science to redefine how we connect and protect our world. Through industry-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – we are advancing aviation, engineering integrated defense systems and developing next-generation technology solutions and manufacturing to help global customers address their most critical challenges.

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