Sr. Principal Network Domain Architect

Prattwhitney; Richardson (TX); Hybrid; USD 146,000 - 277,000; Full time

Benefits offered by this job

Parental leave

Flexible work schedules

Educational assistance

401(k) match

Paid time off

Holidays

Job summary

RTX seeks a Sr. Principal Classified Network Domain Architect to lead enterprise-wide network architecture across on-premises, cloud, hybrid, and edge environments, with a focus on RTX Classified Enterprise Network Architecture.

You will establish standards, reference designs, and modernization roadmaps while driving secure, scalable solutions that support RTX's mission-critical services and transformations.

Qualifications

• Requires a University Degree in a related technical discipline; advanced degree preferred.
• Deep expertise in enterprise networking including routing/switching, LAN/WAN, data centers and cloud networking.
• Hands-on experience with Azure and/or AWS cloud networking; knowledge of secure-by-design principles.

Responsibilities

• Lead enterprise network architecture across classified and unclassified environments (on-prem, cloud, hybrid, edge).
• Establish network 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.
• Collaborate with Cloud, Cybersecurity, Infrastructure, and Ops teams to align architecture with requirements.
• Drive network automation and IaC strategies to improve provisioning and operations.
• Evaluate emerging technologies, lead proofs of concept, and guide major modernization initiatives.

Skills

Advanced networking cert

Enterprise networking

Cloud networking (Azure/AWS)

Network automation / IaC

Zero Trust / SD-WAN / SASE

On-prem/cloud/hybrid networks

Education

University Degree in a related technical discipline

Advanced Degree in a related field

Tools

Azure

AWS

Terraform / IaC tooling

CI/CD tooling

Job description

Date Posted: 2026-11-03 Country: United States of America Location: US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17 Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: 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 Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required on day 1

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market-leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Join us and help shape the future of aerospace and defense.

The following position is to join our RTX Corporate, Enterprise Services team: As a Sr. Principal Classified Network Domain Architect, you will lead enterprise-wide network architecture across on-premises, cloud, hybrid, edge, and secure-access environments, with a primary focus on RTX Classified Enterprise Network Architecture. You will establish strategic direction, architecture standards, and modernization roadmaps while driving secure, scalable, and compliant network solutions that support RTX's mission-critical services and enterprise transformation initiatives.

What You Will Do

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.

Qualifications

You Must Have. 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.

Preferred

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.

Work Location

This is a hybrid role, Employees who are working in Hybrid roles will work regularly both onsite and offsite. Ratio of time working onsite will be determined in partnership with your leader.

What We Offer

Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs.

• parental (including paternal) leave
• flexible work schedules
• achievement awards
• educational assistance
• child/adult backup care

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 145,600 USD - 276,800 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

• medical
• dental
• vision
• life insurance
• short-term disability
• long-term disability
• 401(k) match
• flexible spending accounts
• flexible work schedules
• employee assistance program
• Employee Scholar Program
• parental leave
• paid time off
• holidays

• annual short-term and/or long‑term incentive compensation programs

Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class.

RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry‑leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.