Senior Principal Systems Engineer (Onsite)

Location US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17 Date Posted 2026-05-28 Country United States of America Position Role Type Onsite Security Clearance TS/SCI - Current. U.S. citizenship required. Active and transferable U.S. government issued security clearance required on day 1.

About the Role Systems Engineering Lead Investigator with active TS/SCI clearance to work onsite in Richardson, TX. Responsible for overseeing prototype development, issue resolutions, and technological planning for a complex program. Coordinates with customer teams, program leadership, and other teams to ensure prototype meets system requirements.

What You Will Do Manage end-to-end prototype lifecycle, from conceptual design and lab setup to software configuration, troubleshooting, and final documentation. Identify material requirements (hardware, software, supplemental staffing, etc.). Ensure finalized thin-line prototypes are validated by the Solution Architect, OCE, and IPAT Lead prior to the start and end of testing.

Primary focus on architect risk, identified by the Solution Architect. Create the thin-line prototype and evaluate technology options. Identify any problems related to security, scalability, and overall solution fit within the DIPN environment.

Qualifications You Must Have Experience working with Harvester and Kubernetes. Systems of Systems integration experience from a design/architecture perspective. Extensive experience designing detailed full‑stack platform solutions, including trade studies, cost, schedule, and technical aspects.

Familiarity with most technologies appropriate for deployable open systems infrastructures, including MOSA approaches, CI/CD, commercial cloud (AWS and Azure), hybrid cloud, edge cloud architectures, Linux-based systems, Microsoft ecosystem including Azure and Azure Stack, microservices/containerization/Kubernetes and service mesh routing, modern network technologies, CSfC encryption, cross‑domain solutions, modern authorization/ICAM/Zero‑Trust architectures, data management/synchronization, DDIL, and tactical system development. Familiarity with operational U.S. military systems deployed into the tactical echelon, including tactical and strategic back‑haul voice and data communications (Tactical Data Links), sensor integration, military commercial cloud integration, and broad experience developing automated deployment and testing of complex systems using Ansible, Terraform, Docker, Rancher Kubernetes. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an advanced degree in a related field and minimum 7 years of experience.

Active and transferable U.S. government issued TSSCI required prior to start date. U.S. citizenship required. Qualifications We Prefer Curious self‑starter that can excel in a prototyping environment to turn customer desire into executable solution candidates.

Senior level technical consulting experience including experience interfacing with internal and external stakeholders. Successful track record of performing complex system deployments. People leadership experience; mentoring, coaching, and building high‑performing engineering teams.

Familiarity with Enterprise Application development and deployment processes. Experience designing, implementing, and supporting Kubernetes in DDIL environments. Experience implementing Cloud Service Provider (AWS/Azure) services in DDIL environments.

Experience designing, implementing, and supporting Service Mesh environments. Extensive Linux development experience. Experience with SAFe agile processes.

Prior military or hands‑on experience with tactical military IT systems in production use. Familiarity with USAF operational and tactical CONOPS. Cameo or MagicGrid‑based MBSE modelling.

What We Offer Medical, dental, and vision insurance. Three weeks of vacation for newly hired employees. Generous 401(k) plan including employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option.

Tuition reimbursement program. Student loan repayment program. Life insurance and disability coverage.

Optional coverages: pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection. Birth, adoption, parental leave benefits. Ovia Health, fertility, and family planning.

Adoption assistance. Autism benefit. Employee assistance plan with up to 10 free counseling sessions.

Healthy You incentives, wellness rewards program. Doctor on Demand, virtual doctor visits. Bright Horizons child and elder care services.

Teladoc medical experts, second opinion program. And more. Compensation Salary range: $132,400 USD – $251,600 USD.

Benefits Eligible benefits include 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, and other benefits dependent on specific business unit and collective bargaining agreement. Equal Opportunity Employer 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, 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. #J-18808-Ljbffr