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Sr. Principal Linux Systems Administrator

Job in Andover, Essex County, Massachusetts, 01810, USA
Listing for: Raytheon
Full Time position
Listed on 2026-07-19
Job specializations:
  • IT/Tech
    Systems Administrator, Unix/Linux
Job Description & How to Apply Below

Sr. Principal Linux Systems Administrator

This role requires on-site presence in Andover, MA. Relocation may be available if the selected applicant meets company policy criteria.

What You Will Do

  • Manage and optimize Red Hat Enterprise Linux infrastructure, ensuring reliable and secure IT operations.
  • Act as a senior technical resource for the team to maintain confidentiality, integrity, and availability of assigned IT systems and applications.
  • Partner with Cybersecurity teams to maintain compliance with security requirements and provide documentation, training, and guidance on advanced IT processes and procedures.
  • Mentor and guide junior administrators across a broad range of responsibilities, including corrective and preventive maintenance, routine operational tasks, account management, and system performance tuning.
  • Lead and contribute to technical meetings with internal teams and program stakeholders, providing technical guidance and best practice to ensure successful outcomes.
  • Develop, document, and enforce system administration processes, standards, and best practices.
  • Participate in Change Request reviews and serve on Change Management Boards at various program levels.
  • Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
  • Travel to other US Domestic locations may be required as business needs dictate. Up to 10% per year.
  • Qualifications You Must Have

    • Typically requires a bachelor's degree or equivalent experience and minimum 8 years prior relevant experience, or an Advanced Degree in a related field and minimum 5 years' experience.
    • Advanced experience administering Red Hat Enterprise Linux environments
    • Experience mentoring both individuals and teams.
    • Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent) within a reasonable amount of time.
    • Ability to obtain INTERIM 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.

    Qualifications We Prefer

    • Experience with any of the following technologies: VMware, Kubernetes, Open Shift, Podman, Infrastructure as Code (Terraform and/or Ansible), Windows administration.
    • Scripting/coding proficiency (Python/Go/Power Shell/Bash)
    • Experience supporting engineers in software, simulations, and hardware development.
    • Experience working with NISPOM, JAFAN, JSIG, and/or DoD/RMF guidelines.
    • Strong communication skills, with ability to influence and drive change with peers and leaders across the organization.

    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 available, provided final candidate meets eligibility requirements
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