Sr. Principal Systems Engineer - Comms (Onsite)

We are seeking a Senior Principal Systems Engineer to support programs involved in modernizing the U.S. Air Force Nuclear Command, Control, and Communications (NC3) capabilities. The role is based in Richardson, TX or Cedar Rapids, IA.

Position: Senior Principal Systems Engineer. Role type: Onsite. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

An active and transferable Secret U.S. government‑issued security clearance is required on day one, with the potential to obtain Top Secret after start. Responsibilities Lead technical proposal preparation and serve as a subject‑matter expert in non‑advocate, internal, and customer reviews. Develop and manage technical risks, and execute mitigation plans.

Recommend investments or changes in technology, resources, procedures, equipment, systems, or other assets to improve project quality. Participate in and lead bids and proposals. Apply SysML concepts for system modeling across a full engineering lifecycle.

Serve as design authority for Integrated Strategic Solutions Engineering (ISSE) NC3 systems. Contribute as a subject‑matter expert to the design and architecture of a complex communications‑based system of systems. Lead development and communication of roadmaps for ISSE projects, associated technologies, and product lines.

Advise engineering managers, program managers, business development managers, product line managers, and component architects. Establish trusted and influential relationships with customers and suppliers. Serve as the primary technology and systems engineering focal point for leadership and the customer for ISSE mission equipment packages/solutions.

Coordinate across strategic business units to align portfolio roadmaps. Monitor cost and schedule, and report project status to program management and engineering leadership. Work and communicate effectively with all levels of management, individual contributors, and external stakeholders.

Qualifications Typically requires a STEM degree and a minimum of 10 years of relevant experience, or an advanced degree with a minimum of 7 years of experience. Leadership and mentoring experience with systems engineering teams. Experience with RF equipment and applications, including link‑budget analysis, co‑site analysis, government and commercial data waveforms, and user/mission system integration.

Prior experience with VLF, LF, HF, V/UHF, and Milsatcom embedded development, including interface definition, requirements, and use‑case development. Experience with system architecture development, and systems, software, and hardware engineering. Experience with Model‑Based System Engineering (MBSE) concepts and tools – Build advanced SysML models for activities, states, block diagrams, and use cases.

Experience with proposal preparation and serving as a subject‑matter expert in non‑advocate, internal, and customer reviews. Active and transferable Secret U.S. government‑issued security clearance is required on start date, with ability to obtain Top Secret after start. Preferred Qualifications Experience with aircraft level system integration, development of integration and test plans, test cases, and procedures.

Experience with automation test tools or scripting for product and system level tests. Experience with MBSE tools such as MagicDraw, CAMEO, Rhapsody, or Enterprise Architect. Knowledge of regulatory and certification requirements: TSO, DO‑160, DO‑254, DO‑178B/C, and ARP‑4754.

Experience working in an Agile development environment, closely integrated with software, integration, and verification teams. Experience with virtualization technologies. Knowledge of MIL‑STD‑1553B, ARINC661 standard and bus protocols.

Experience with TCP/IP network applications development. Experience on an NC3 program. Benefits Medical, dental, and vision insurance.

Three weeks of vacation for newly hired employees. Generous 401(k) plan with employer matching funds and a separate employer retirement contribution, including a Lifetime Income Strategy option. Tuition reimbursement program.

Student loan repayment program. Life insurance and disability coverage. Optional coverages available for purchase, including pet, home, and auto insurance, additional life and accident insurance, critical illness insurance, group legal, and ID theft protection.

Birth, adoption, and parental leave benefits. Employee assistance plan with up to 10 free counseling sessions. Incentives and wellness rewards program.

Virtual doctor visits and health coaching. Child and elder care services, including Bright Horizons and veteran benefits. Potential eligibility for relocation assistance.

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 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