Senior Principal Systems Architect - Cybersecure Linux & Automation

RTX (Raytheon); San Jose (CA); On-site; USD 150,000 - 230,000; Full time

Job summary

Applied Signal Technology, a Collins Aerospace company, seeks a Senior Principal Systems Architect to advance cybersecurity, systems hardening, and automation for mission-critical IT infrastructure at the San Jose site. You will partner with cyber teams and operations to ensure robust, compliant, and resilient systems.

We value leadership, mentorship, and experience with Linux, NetApp storage, and automation tools, with travel up to 15% to meet program objectives. U.S.

Qualifications

• Degree in Science, Technology, Engineering or Mathematics (STEM) and 10+ years of relevant experience.
• Experience administering Linux (RHEL 7/8/9), including systemd, firewalld, SELinux.
• Experience with NetApp enterprise storage.
• Security standards and DoD/STIG knowledge is a plus.

Responsibilities

• Lead, develop, document, and implement a cybersecurity mitigation strategy aligned with NIST-800-171.
• Collaborate with Cyber teams to monitor system availability, performance, and logs.
• Build automation workflows using industry standards.
• Harden hardware and software in physical and virtual environments (VMware).
• Coordinate with operations, supply chain, and legal to support mission objectives.
• Support audit readiness and respond to vulnerabilities.
• Mentor junior system administrators.
• Manage incidents via ticketing system; travel up to 15%.

Skills

Cybersecurity leadership

System administration

Audit readiness

Incident response

Education

STEM degree

10+ years experience

Tools

NetApp

Ansible

Splunk

Zabbix

VMware

SCAP/STIG

LDAP/AD

Job description

Applied Signal Technology, a Collins Aerospace company, seeks a Senior Principal Systems Architect to advance cybersecurity, systems hardening, and automation for mission-critical IT infrastructure at the San Jose site. You will partner with cyber teams and operations to ensure robust, compliant, and resilient systems.

We value leadership, mentorship, and experience with Linux, NetApp storage, and automation tools, with travel up to 15% to meet program objectives. U.S.