Principal Systems Engineer - Missile Guidance, Navigation, and Control Engineer

Job description

Date Posted: 2026-08-24 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 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: Secret Security Clearance Status: Active and existing security clearance required on day 1 At RTX, the world 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. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. The Systems Effectors: Processing, Guidance & Control Center is responsible for algorithm development including Guidance, Navigation, and Control; radio frequency (RF) and electro-optical/infrared (EO-IR) Signal Processing (SP); and missile- and sensor-level Modeling and Simulation for Raytheon's broad portfolio of projects, programs, and products. In the GNC department, we design, integrate, and optimize effector guidance, tracking, navigation, and estimation algorithms to meet mission objectives. We support new business initiatives and help develop & execute technology roadmaps. The Effectors PG&C Center is currently hiring for a Principal Systems Engineer - Missile Guidance, Navigation, and Control Engineer position in Tucson, AZ to support execution of the portfolio of current and upcoming missile programs. As a Principal Systems Engineer - Missile Guidance, Navigation, and Control Engineer , you will play a critical role in helping with the evaluation, design, implementation, and integration of embedded software algorithms. You will collaborate with a team of engineers in an integrated product team that will be responsible for tactical embedded software, firmware, and integrated flight software 6 Degrees-of-Freedom simulations to achieve overall system performance requirements. This position is an onsite role located in Tucson, AZ. What You Will Do • Development, integration, and testing of embedded tactical missile flight code • Definition and execution of system level performance studies and analyses to inform the development and integration of new capabilities, refinement of existing capability, or to address obsolescence • Work within an agile framework to lead development of backlogs, plans, and metrics • Provide experience and guidance to help the program train new engineers and execute efficiently and effectively • Support missile performance analysis including model development, system optimization, and Monte Carlo assessments with expected system disturbances. Qualifications You Must Have • Typically requires a Bachelor’s degree in Engineering, Science, Physics, Mathematics, or a related STEM degree and a minimum of 8 years prior relevant experience • GNC, Signal Processing, and/or Modeling / Simulation experience • Engineering experience in missile system applications to include at least two of the following: • Digital and/or modern control systems • Dynamics • Kalman filter design • Monte Carlo analysis • Development and/or simulation of physical systems • Signal processing • Verification and validation • System-level performance assessments • GPS/INS navigation systems, sensors, and algorithms • Assured Positioning, Navigation, and Timing (APNT) systems, sensors, and algorithms for navigation in GPS-degraded environments • Experience with MATLAB, Python, C, C++, and/or Object-Oriented design • Experience with GNC and/or Signal Processing algorithms within a simulation or physical environment • Experience managing or leading others in a technical and/or functional capacity within an engineering environment • Ability to obtain an Interim Secret U.S. government issued Security Clearance is required prior to start date with the ability to obtain special program access after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer • Advanced Degree in Engineering, Science, Physics, Mathematics, or a related STEM degree • 8 or more years of GNC, Signal Processing, and/or Modeling / Simulation experience • Ability to communicate effectively with executive leadership and customers regarding matters of significant importance • Ability to balance multiple concurrent priorities with overlapping deadline in an Agile environment • Subject Matter Expert in at least one of the following areas: RF algorithm design, GNC algorithm design, autopilot algorithm design or Software in Simulation • Experience with and demonstrable achievement in systems engineering principals with regards to product development What We Offer • Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. • Relocation Eligible - relocation assistance is available for this position Learn More & Apply Now! • 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. • This position requires onsite work