Sr. Systems Engineer - Guidance, Navigation, and Control Engineer

globalhr; Tucson (AZ); On-site; USD 87,000 - 165,000; Full time

Job summary

RTX's Effectors PG&C Center in Tucson, AZ seeks a Sr. Systems Engineer - Guidance, Navigation, and Control to design, implement, and integrate embedded software for missile systems.

You will work with a team to deliver six-degrees-of-freedom simulations and flight software to meet performance requirements. The role requires a Bachelor’s degree and 5+ years in GNC, signal processing, or modeling/simulation, plus proficiency in MATLAB, Python, C/C++, and OO design.

Qualifications

• Bachelor’s degree with 5+ years in relevant engineering field.
• GNC, signal processing, or modeling/simulation experience.
• Experience with digital/modern control, dynamics, Kalman filter design, Monte Carlo analysis, or related simulations.
• Proficiency in MATLAB, Python, C/C++, or OO design; strong collaboration and leadership skills.

Responsibilities

• Develop, integrate, and test embedded missile flight code.
• Perform system-level analyses to inform new capabilities or obsolescence work.
• Lead backlog planning in an agile environment and mentor junior engineers.
• Support missile performance analysis including model development and Monte Carlo assessments.

Skills

MATLAB

Python

C/C++

Object-Oriented design

GNC algorithms

Signal Processing

Education

Bachelor's degree in Engineering/Science/Physics/Mathematics

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. Systems Engineer - Guidance, Navigation, and Control Engineer position in Tucson, AZ to support execution of the portfolio of current and upcoming missile programs. As a Sr. Systems Engineer - 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 5 years prior relevant experience
• GNC, Signal Processing, and/or Modeling / Simulation experience
• Engineering experience in missile system applications to include at least one 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

• Active and current Secret or above level Security Clearance
• Advanced Degree in Engineering, Science, Physics, Mathematics, or a related STEM degree with 5 or more years of GNC, Signal Processing, and/or Modeling / Simulation experience
• Ability to communicate effectively with internal leadership regarding matters of importance
• Ability to balance multiple concurrent priorities with overlapping deadline in an Agile environment
• 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

The salary range for this role is 86,800 USD - 165,200 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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