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# Sr. Principal Network Domain Architect

- **Company:** RTX
- **Location:** Richardson, TX, United States
- **Experience:** Expert
- **Salary:** $145,600.0 - $276,800.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Cloud Computing, Cyber Security, Computer Networks, Continuous Integration, Data Centers, Virtual Private Networks (VPN), Multi-protocol Systems, Network Security, Network Architecture, Routing, Network Administration, Open Shortest Path First (OSPF), Zero Trust Network Access, Wide Area Networks, Infrastructure as Code (IaC), Data Center Networking, Togaf, Open Network Automation Platform
- **Published:** November 4, 2026
- **Apply:** https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-TX-RICHARDSON-C17--1717-Cityline-Dr--CITYLINE-C17/Sr-Principal-Network-Domain-Architect_01886124

## About the Role

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, * Typically requires a University Degree in a related technical discipline and a minimum of 10 years of relevant experience, or an Advanced Degree and a minimum of 7 years of relevant experience.

 * Advanced networking certification, such as CCNP, JNCIP, or equivalent.
 * Deep expertise in enterprise networking, including routing/switching, LAN/WAN, data center networking, and cloud networking.
 * Advanced knowledge of BGP, OSPF, IS-IS, MPLS, VPNs, and SDN.
 * Experience designing secure network architectures, including Zero Trust, SD-WAN, and SASE/SSE.
 * Hands-on experience with Azure and/or AWS cloud networking.
 * Experience with network automation, Infrastructure as Code (IaC), APIs, and CI/CD.
 * Experience developing enterprise architecture standards, reference architectures, and technology roadmaps.
 * Strong understanding of secure-by-design principles and regulated-environment security requirements.
 * TS Clearance Required

Qualifications We Prefer

 * TOGAF and CSSIP certifications.
 * Master's degree in a relevant technical discipline.
 * Advanced networking certifications, such as CCIE, JNCIE, or equivalent.
 * Cloud networking certifications for Azure, AWS, or equivalent platforms.
 * Experience with SASE/SSE, SD-WAN, network security, and network management platforms.
 * Experience architecting networks within aerospace, defense, manufacturing, telecommunications, or other regulated enterprise environments.
 * Experience working with ITAR/EAR, Controlled Unclassified Information (CUI), NIST 800-171/53, DFARS, Risk Management Framework (RMF), and/or CMMC requirements.
 * Experience leading technology innovation, proofs of concept, and emerging-technology initiatives.
 * Experience with AI fabric networking, advanced data center fabrics, or edge networking.
 * Experience supporting the Defense Industrial Base, Department of Defense (DoD), Department of War (DoW), and/or Intelligence Community environments.
 * Proven experience serving as the lead architect for major enterprise network transformations or cloud connectivity initiatives.
 * Proficiency with enterprise architecture modeling and repository tools, including architecture visualization capabilities.

## Description

* Lead enterprise network architecture across classified and unclassified environments, including on-premises, cloud, hybrid, and edge networks.
 * Establish network architecture standards, reference designs, security patterns, and modernization roadmaps.
 * Architect secure network solutions across LAN/WAN, data centers, cloud networking, Zero Trust, SDN, SD-WAN, and SASE/SSE.
 * Partner with Cloud, Cybersecurity, Infrastructure, and Operations teams to align architecture with enterprise and security requirements.
 * Drive network automation and Infrastructure as Code (IaC) strategies to improve provisioning and operational efficiency.
 * Evaluate emerging technologies, lead proofs of concept, and guide major network modernization initiatives.
 * Influence enterprise technology decisions and provide architectural direction to executive and engineering stakeholders.