Principal Network Engineer (TS/SCI Clearance Required)

Company: RTX
Location: Richardson
Posted on: April 2, 2026

Job Description:

Date Posted: 2026-02-11 Country: United States of America Location: US-TX-RICHARDSON-C37 ~ 1737 Cityline Dr ~ CITYLINE C37 Position Role Type: Onsite 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: TS/SCI Security Clearance Status: Active and existing security clearance required on day 1 RTX Corporation 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 Systems, Pratt & Whitney, and Raytheon. Its 185,000 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, VA. The following position is to join our RTX Enterprise Services team: Role Overview: The products and services RTX provide to the United States Government are critical to our nation’s security. It is imperative that our programs can securely collaborate to provide services, develop new capabilities, and improve existing capabilities. We are looking for a network engineer who can support this vital mission. The RTX Classified Network Services team is an enterprise-level team that provides secure, robust, and collaborative networks to our programs in Raytheon, Collins Aerospace, and Pratt & Whitney. Our multiple nationwide networks offer secure data, voice, and video connecting RTX users with each other and government customers. The ideal candidate will have significant experience in LAN/WAN routing and switching, and firewall administration in a classified operating environment. This position will be onsite in Richardson, TX. All candidates must have active Top Secret/SCI security clearance with Counterintelligence Polygraph in order to be considered. Relocation support is available according to our company policy requirements. What You Will Do: Maintain, and upgrade (software/firmware/hardware) LAN/WAN components including routers, switches, firewalls. Monitor, analyze, troubleshoot, and optimize network system performance, proactively identifying and quickly resolving service impacting issues. Drive and/or participate in projects in support of installation and/or improvement to voice, video, and network infrastructure. Produce, update and generally improve technical documentation to support security requirements and operational support of systems. Review systems vulnerability assessments to ensure compliance with recognized industry standards and best practices. May require infrequent on-call and on-site support of networks after normal business hours including weekends. May require infrequent travel to other sites within the local region. Qualifications You Must Have: Typically requires a University Degree or equivalent experience and a minimum 8 years of experience, or an Advanced Degree and a minimum 5 years experience. At least 5 years of experience as a network engineer. Cisco CCNP or demonstrated equivalent knowledge and experience. Experience in Cisco LAN/WAN routing and switching technology to include OSPF, BGP, DMVPN, and IPSec tunneling. Experience in administration of Cisco Firepower and Palo Alto security appliances. The selected candidate must have a DoD 8570 – CSSP Infrastructure Support security certification (e.g CEH, CySA, GICSP, SSCP, CHFI, CFR, Cloud, CND) or able to obtain one within 6 months of employment. Familiarity with the rules and standards of operating a network in a SCIF environment. Active and transferable U.S. government issued TS/SCI with CI Poly 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: Bachelor’s degree in computer science or related technical field. Familiarity with Amazon AWS cloud (network focus). Experience managing a private crypto network using GEM One for TACLANEs. Experience managing and automating a network with Cisco Digital Network Architecture (DNA). Experience with automating network tasks with Ansible and/or Python. Excellent written and verbal communication skills, strong collaboration, team building. Strong customer service ethic and focus. Self-motivation and ability to work independently in a dynamic environment. 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. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care. Learn More & Apply Now! Work Location: Onsite - Richardson, TX Please consider the following role type definition as you apply for this role: Onsite : Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products 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 107,500 USD - 204,500 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. Hired applicants may be eligible for benefits, including but not limited to, 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, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms

Keywords: RTX, Keller , Principal Network Engineer (TS/SCI Clearance Required), IT / Software / Systems , Richardson, Texas