**Date Posted:** 2025-08-22 **Country:** United States of America **Location:** AZ805: RMS AP Bldg 805 1151 East Hermans Road Building 805, Tucson, AZ, 85756 USA **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:** DoD Clearance: Secret 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 Airborne Kill Chain AI/ML Section, you will join a high-performing team of engineers working with high-fidelity missile simulations to construct decision support systems used by the warfighter. Raytheon is currently seeking a Simulation Analysis Engineer I. This is an onsite role in Tucson, AZ, with the potential for occasional travel a few times a year. **What You Will Do** + You will support the design, development, and/or utilization of high-fidelity digital simulation software in advanced technical computing environments. + You will contribute to trade studies to assess system performance of weapons against a variety of threats in a variety of kill chain scenarios. + You will contribute your knowledge of performance engineering practices, and procedures, to evaluate work across a wide range of intriguing computational problems to answer questions such as: what should be the next system improvement; or what is the effectivity of the missile against a single or multiple threats; or what counter measures should be considered to increase effectivity and/or survivability and other operational performance related questions. + You will contribute and collaborate in a team environment, receiving input from the program, external customers, or team experts, and work on projects, as you determine, develop, and implement analytic approaches that will generate the supporting data to inform programmatic decisions. + You will participate in the development and implementation of model-based solutions to power decision support systems, and participate in validation and testing models, software components and/or integrated systems. **Qualifications You Must Have** + Masters degree in a Science, Technology, Engineering, or Mathematics (STEM) field. + This position requires less than 12 months of relevant professional work experience (excluding internships). + Scripting/programming experience with MATLAB and/or Python + At least one course in probability & statistics. **Qualifications We Prefer** + Specific majors: Physics, Mathematics, Applied Mathematics, Data Science, Operations Research, Systems Engineering, Industrial Engineering, Computer Science, Aerospace Engineering, Computer/Electrical Engineering. + Cumulative GPA ≥ 3.2 + Coursework, internship, projects or work experience in the following areas: Simulation modeling, development, and/or analysis of physical systems + Knowledge of the systems engineering life-cycle model + Software development processes and object-oriented design using C/C++ and/or Java in either Unix or Linux computing environments. + Artificial Intelligence / Machine Learning (AI/ML) or Surrogate Modeling + Computation on high-performance computing (HPC) grids/clusters, SLURM + Demonstrated ability in the following areas: + Conflict resolution in team environments + Written and verbal communication with peers, management, IT support, and customers + Producing PowerPoint slides, documentation, and/or publications. + Experience with military work or substantive domain knowledge of tools and tactics of warfare + Active and transferable U.S. government issued SECRET or TOP SECRET security clearance **What We Offer** + Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. + Relocation Eligibility **Learn More & Apply Now!** + Please consider the following role type definition as you apply for this role. + 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. + Please upload a copy of your most recent transcripts with your resume when applying to this requisition. Include your cumulative GPA. The salary range for this role is 66,000 USD - 130,000 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._ **Privacy Policy and Terms:** Click on this link (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.