Senior Principal Engineer – Solid Propulsion

Position Summary

The Energetics and Propulsion Department is seeking a Principal Engineer – Solid Propulsion for Tucson, AZ. The role involves advanced technologies, systems integration, and program management for solid rocket motor propulsion systems.

• Apply advanced technologies, scientific principles, and concepts to integration of propulsion, thrusters, controllers, software, mechanical and electrical interfaces.
• Engage in development and production programs across product lines.
• Review manufacturing processes, resolve problems, and work with subcontractors on design and manufacturing of solid rocket motor propulsion systems.
• Collaborate with program management on long‑range planning and serve as technical spokesperson.
• Manage propulsion system development projects and subcontracts; review data and change requests; oversee supplier operations.
• Develop and deliver technical presentations to management and government agencies.
• Interface frequently with customers to identify user needs.
• Support business development and independently resolve issues in missile programs.

• Bachelor in Science, Technology, Engineering, or Mathematics (STEM) and minimum 8 years of relevant experience, or equivalent experience.
• Experience developing solid propulsion systems.
• Active U.S. government security clearance (Secret) and U.S. citizenship required.

• 12 or more years of directly related experience in propulsive technology, including solid or liquid or mono‑propellant systems.
• Prior Patriot Missile experience.
• Systems knowledge to develop and disseminate propulsion requirements to subcomponents.
• Project engineering skills, including Earned Value Management.
• Proposal/cost account management or project/team leadership experience.
• Ability to lead collaborative efforts with structural, thermal, aerodynamics and low observables disciplines.
• Willingness to travel internationally for supplier support.
• Supplier collaboration experience and oversight in generating specifications and SOW.
• Knowledge of missile design, development, production support, and integration.
• Experience with DoD customers and/or contractor executives.

• Salary range: $132,400 - $251,600 USD.
• Benefits include medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, flexible work schedule, employee assistance, parental leave, paid time off, holidays, and incentive compensation programs.

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.