Sr. Principal Systems Engineer - Missile Guidance, Navigation, & Control Engineer

Raytheon; Tucson (AZ); On-site; USD 132,000 - 252,000; Full time

Benefits offered by this job

Relocation Eligible

Medical

Dental

Vision

Life insurance

Short-term disability

Long-term disability

401(k) match

Flexible spending accounts

Flexible work schedules

Employee assistance program

Parental leave

Paid time off

Holidays

Job summary

Raytheon’s Effectors PG&C Center in Tucson, AZ is hiring a Sr. Principal Systems Engineer - Missile Guidance, Navigation, & Control Engineer.

You will help evaluate, design, implement, and integrate embedded software algorithms for 6-DoF simulations and flight software in an onsite role. You will collaborate with engineers in an integrated product team to achieve performance requirements and support tactical software and firmware development.

Qualifications

• Bachelor’s degree in Engineering, Science, Physics, Mathematics, or a related STEM field.
• 10+ years of relevant experience in GNC, signal processing or modeling/simulation.
• Experience with MATLAB, Python, C, C++, and OO design.
• Strong pursuit of system-level performance assessments.
• U.S. citizenship and ability to obtain security clearance.

Responsibilities

• Develop, integrate, and test embedded missile flight code.
• Conduct system-level performance studies to guide capability development.
• Lead backlog planning and metrics in an agile framework.
• Mentor engineers and help train the team for efficient execution.
• Support missile performance analysis including model development and Monte Carlo assessments.

Skills

GNC

Signal Processing

Modeling/Simulation

Leadership

Fleet of algorithms

GPS/INS navigation systems

Kalman filter design

Monte Carlo analysis

Engineering system optimization

Aerospace or defense domain

Education

Bachelor’s degree in Engineering, Science, Physics, Mathematics, or related STEM

Advanced degree preferred

Tools

MATLAB

Python

C

C++

Job description

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 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

Qualifications You Must Have

• Typically requires a 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.

Qualifications We Prefer

• 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
• 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
• 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.

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 132,400 USD - 251,600 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.