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About the job

Date Posted: 2026-09-10 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: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

At RTX, the world's 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 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 in Tucson, AZ: https://careers.rtx.com/global/en/raytheon-tucson,-az-location

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.

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