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# Sr. Multi-Disciplined Systems Architect (REMOTE)

- **Company:** RTX
- **Location:** Sacramento, CA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $132,400 - $251,600
- **Contract:** Permanent contract
- **Skills:** Active Directory, Antivirus Softwares, Bash Shell, Signals Intelligence, Cyber Security, Linux, Issue Tracking Systems, Python (Programming Language), Lightweight Directory Access Protocols (LDAP), NetApp Applications, Data ONTAP (Server Appliance), Red Hat Enterprise Linux, Ansible, Signal Processing, Software Engineering, Zabbix, Data Logging, Scripting, System Availability, Selinux, Data Management, Splunk, Vmware
- **Published:** October 16, 2026
- **Apply:** https://dejobs.org/x/x/20436B99CC7C45738796303DA8427AEC/job/

## About the Role

The ability to obtain and maintain a U.S. government issued security clearance is required., * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience

 * Ability to demonstrate administration of RHEL 7/8/9, including systemd, firewalld, and SELinux.
 * Ability to demonstrate administration of Netapp enterprise storage.
 * Ability to obtain and maintain U.S. government issued Secret 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 enterprise logging, monitoring, and alerting systems.
 * Experience with automation tools such as Ansible.
 * Experience with CIS/STIG benchmarks and DoD security standards.
 * Linux OS Certificate (RHCSA / LPIC)
 * Experience with Splunk/Zabbix
 * Experience with NetApp / OnTap tools
 * Experience with Enterprise Active Directory (AD) & LDAP
 * Experience dealing with Managed Anti-Virus (AV) solutions (ClamAV & SEM).
 * Scripting Experience (Bash, Python, Ansible) and Kickstart.
 * Active and existing Secret security clearance (within the last 24 months)

## Description

Applied Signal Technology (AST) is seeking a Senior Multi-Disciplined Systems Architect who strives for excellence and has a passion to be part of a team that strengthens our nation and improves the security of our world. AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the U.S. and its partners. AST's work in areas such as high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications continually challenges our extraordinary engineers to resolve problems and make the world a safer place. AST's work environment is passionate, highly collaborative and provides employees the freedom to strengthen and expand their skills, explore new and creative ideas, and work closely with our nation's finest service members all while embracing integrity, innovation, and work-life balance.

This is a REMOTE role that will report to our San Jose, CA office.

What You Will Do:

 * Lead, develop, document, and implement a robust Cybersecurity mitigation strategy by ensuring Linux IT resources are patched and hardened in accordance with NIST-800-171 guidelines
 * Collaborate with Cyber teams to maintain and monitor system availability, performance, and logs using enterprise tools.
 * Leverage industry standards to build out automation workflows
 * Champion processes regarding hardware and software issues across physical and virtualized environments (VMWare)
 * Work closely with operations, supply chain and legal teams to support mission objectives.
 * Support audit readiness activities and respond to security vulnerability findings.
 * Provide mentorship and guidance to junior system administrators.
 * Leverage ticketing system to resolve incidents submitted by end users
 * Travel up to 15%