Sr. Principal Linux Systems Administrator

Overview

Sr. Principal Linux Systems Administrator, Infrastructure Workplace Services, onsite in Andover, MA. Relocation may be available per policy. This role supports fast-paced, critical programs with classified information system capabilities and requires on-site presence.

• Manage and optimize Red Hat Enterprise Linux infrastructure to ensure reliable and secure IT operations.
• Act as a senior technical resource to maintain confidentiality, integrity, and availability of assigned IT systems and applications.
• Partner with Cybersecurity teams to maintain compliance, and provide documentation, training, and guidance on advanced IT processes and procedures.
• Mentor and guide junior administrators across corrective and preventive maintenance, routine tasks, account management, and system performance tuning.
• Lead and contribute to technical meetings with internal teams and program stakeholders, providing guidance and best practices.
• 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.
• Support 24x7 operational systems; some work outside standard hours may be required.
• May travel to other US domestic locations up to 10% per year as needed.

• Bachelor’s degree or equivalent experience; or Advanced Degree with related experience (minimum 5–8 years, depending on degree).
• Advanced experience administering Red Hat Enterprise Linux environments.
• Experience mentoring individuals and teams.
• Ability to obtain DoD Directive 8140/8570 certification (e.g., CompTIA Security+ CE or equivalent) within a reasonable timeframe.
• Ability to obtain Interim U.S. government-issued security clearance prior to start date; U.S. citizenship required for security clearance eligibility.

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

Onsite role located in Andover, MA. Relocation may be available per company policy. Up to 10% travel to other US domestic locations as business needs dictate.

• Competitive salary range: 107,500 USD – 204,500 USD.
• Benefits including medical, dental, vision, life, disability, 401(k) match, and more.
• Paid time off, holidays, parental leave, Employee Scholar Program, and other programs dependent on business unit and collective-bargaining status.
• Incentive compensation programs where applicable.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected class. RTX maintains privacy and policy terms at the company website.