Sr.

Principal Systems Engineer:

• Missile Guidance, Navigation, & Control Engineer

Position Details

Date Posted: 2026-02-06

Country: United States of America

Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805

Position Role Type: Onsite

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

Salary Range: $132,400 USD - $251,600 USD

Requirements

• U.S. Citizen, U.S. Person, or Immigration Status: 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

About the Role

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.

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 Sr.

Principal Systems Engineer:

• Missile Guidance, Navigation, & Control Engineer position in Tucson, AZ to support execution of the portfolio of current and upcoming missile programs.

• As a Sr.

Principal Systems Engineer:

• Missile Guidance, Navigation, & 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

Required Qualifications

• Bachelor's degree in Engineering, Science, Physics, Mathematics, or a related STEM degree and a minimum of 10 years prior relevant experience
• GNC, Signal Processing, and/or Modeling / Simulation experience
• Engineering experience in missile system applications to include at least three of the following or subject matter expertise in at least one:
• 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

Preferred Qualifications

• Advanced Degree in Engineering, Science, Physics, Mathematics, or a related STEM degree with 10 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
• Engineering team leadership

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
• Medical, dental, and vision coverage
• Life insurance
• Short-term and 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
• Eligible for annual short-term and/or long-term incentive compensation programs (dependent upon level of position and various performance factors)

Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Additional Information

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.

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 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.

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 protected veterans.