Sr. Principal Systems Engineer - Signal and Sensor Modeling Engineer

Raytheon; Tucson (AZ); On-site; USD 132,400 - 251,600; Full time

Benefits offered by this job

Medical, dental, and vision insurance

401(k) with match

Flexible work schedules

Relocation assistance

Job summary

Raytheon is seeking a Sr. Principal Systems Engineer – Signal and Sensor Modeling Engineer in Tucson, AZ. This role involves solving complex problems and creating advanced, physics-based modeling solutions in the DoD Space.

The ideal candidate will bring over 10 years of experience in relevant fields and be skilled in C++, signal processing, and electro-optics. Excellent benefits and relocation assistance are offered.

Qualifications

• Typically requires a Bachelor’s degree in Engineering and a minimum of 10 years of relevant experience.
• Experience applying object-oriented software design in C++, C, and MATLAB or Python.
• Familiarity with UNIX/Linux or Windows command line.

Responsibilities

• Champion novel solutions for advanced modeling techniques.
• Develop new C++ models and deploy EO or RF phenomenology in software.
• Mentor and share EO or RF expertise with your team.

Skills

C++ programming

Software development

Signal processing

Electro-optics

Object-oriented design

Python

MATLAB

Education

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

Job description

Location: US-AZ-TUCSON-9020 ~ 9020 S Rita Rd ~ BLDG 9020
Date Posted: 2026-06-22
Country: United States of America

Security Clearance: DoD Clearance: Secret.
Requirements: Active and transferable U.S. government issued security clearance prior to start date; U.S. citizenship required.
Intermediate clearance status: Required prior to start date.

We’re looking for Sr. Principal Systems Engineer – Signal and Sensor Modeling Engineer who enjoy solving complex problems, engaging in a dynamic team environment, and are eager to learn.

As a Sr. Principal Systems Engineer – Signal and Sensor Modeling Engineer, you will work on a close‑knit team to create advanced, physics‑based modeling solutions in the DoD Space. You will develop key technologies in the EO/IR/RF domain to help engineers grasp the most complex aspects of energy transport, enabling the design and test of tomorrow’s artificial intelligence algorithms and hardware solutions. You will deploy cutting‑edge technologies, leverage your software development skills and collaborate with your Signal and Sensor Modeling peers. This is an onsite role in Tucson, AZ.

What You Will Do

• You will champion novel solutions for advanced modeling techniques.
• You will develop new C++ models in an extensible and maintainable fashion.
• You will deploy EO or RF phenomenology and advanced physics principles in a software implementation.
• You will enable our customer’s success through adoption and utilization of modeling solutions.
• You will work efficiently inside an established software product, across programming languages, and build environments.
• You will research and develop novel EO or RF modeling solutions.
• You will coordinate with multiple development teams to prioritize and solve complex software and physics problems.
• You will mentor and share EO or RF expertise with your team.

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 of prior relevant experience.
• Experience applying object‑oriented software design in C++, C, and using MATLAB or Python for evaluation of data sets.
• Experience with UNIX/Linux or Apple OS or Windows DOS command line.
• Experience in electro‑optics or in radar processing, imaging EO/IR/RF systems, energy transport, radar physics, signal processing and/or discrimination algorithms.
• Ability to obtain an Interim Secret U.S. government issued Security Clearance prior to start date with the ability to obtain special program access after start. U.S. citizenship required.

Qualifications We Prefer

• Advanced Degree in Engineering, Science, Mathematics, or related STEM degree.
• Experience with OpenGL, CUDA, or other GPU accelerated languages/architectures and Scene Generation/Sensor Modeling technologies.
• Experience with electronic warfare modeling, developing signal processing algorithms for missile applications, signal & image processing, digital communications, or estimation theory, or AI/ML and training techniques.
• Experience with real‑time programming, software change management tools and processes, using and augmenting build systems (Make/CMake), and working with large production software environment.
• Experience interfacing with adjacent engineering disciplines (Signal Processing, Systems Engineering, Hardware Engineering).

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 available for this position.

Salary Range: 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.

Benefits may include 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 depend on the specific business unit and whether 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 the position is covered by a collective‑bargaining agreement. Payments under these programs are not guaranteed and depend on a variety of factors including 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.