Senior Kill Chain Software Engineer/Senior Systems Engineer Onsite

Date Posted:

2026-03-30

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: Top Secret

Security Clearance Status:

Active and existing security clearance required on day 1

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 Integrated Solutions, Modeling, and Architecture (ISMA) directorate assesses, develops, and evaluates solution architectures for our customers’ largest, most complex challenges across all the operational domains. In the Operations and Mission Analysis Department you’ll be part of a special team that analyzes the world’s most challenging threats and helps define new capabilities to counter them, pushing the boundaries of innovation, and leading the industry in operational modeling and simulation using our purpose-built software. As a team member in the Air Dominance Modeling and Analysis section, you will join a high-performing team of engineers working with high-fidelity sensors, platform, and weapon simulations to provide actionable analysis to the Department of Defense and the Warfighter.

Raytheon is currently seeking a Senior Kill Chain Software Engineer.  This is an onsite role in Tucson, AZ, with the potential for occasional travel a few times a year.

 What You Will Do

• Actively participate as a senior member of an agile development team

• Lead the design, development, and review of new software features in an all-digital distributed simulation environments.

• Roadmap Development: Work with software and analysis leads to scope tasks and schedule to maintain a project roadmap that outlines schedules and milestones for a multi-vendor modeling, simulation, and analysis environment.

• Stakeholder Engagement: Collaborate with Associate Contractors and Customers ensure community capabilities are aligned and scope analysis projects appropriately.

• Work with vendor and Raytheon programs to define requirements and capabilities for distributed modeling and simulation support.

Qualifications You Must Have

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of prior engineering experience.

  Experience with at least one object-oriented programming language (Python, C++)

• Experience contributing to a team environment to develop creative and achievable solutions to complex technical, schedule, and cost problems.

• The ability to obtain and maintain a US security clearance prior to the start date. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

• Specific majors: Computer Science, Computer/Electrical Engineering, Software Engineering, Mechanical Engineering, Aerospace Engineering

• Previous experience performing verification and validation of digital simulation models

• Experience evaluating systems performance in complex environments

• Experience with distributed modeling and simulation

• Experience with Linux/UNIX, High Performance Computing, Git, SIMDIS, Air Dominance Testbed, Air Combat Evaluation Model, C++, Python

• Active and transferable U.S. government issued TOP SECRET security clearance

• Current or ability to obtain U.S. government issued TS/SCI security clearance

What We Offer

• Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package that goes above and beyond with compensation, work/life benefits, career development and recognition programs. Some of the superior benefits we offer include flexible work schedules.

Learn More & Apply Now!

• 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.

• Clearance Information: This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm 

• Tucson, AZ: https://careers.rtx.com/global/en/raytheon-tucson,-az-location #LI-RH2

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 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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