Date Posted: 2026-04-14 • Location: Tucson, AZ • Role Type: OnsiteU.S. citizenship required; interim Secret U.S. government‑issued security clearance required prior to start. This position requires onsite work in Tucson, AZ.What You Will Do Create high‑fidelity simulations and models for missile design, performance assessment, and flight test support.Develop and implement modeling solutions, conduct trade studies, and evaluate system and subsystem performance.Work in a team environment, receiving input from supervisors and providing guidance to other team members.Collaborate with Guidance, Navigation & Control (GNC), Signal Processing, and performance personnel to perform simulation activities according to the program schedule.Work on different projects, determine and develop approaches, and provide development guidance throughout the product lifecycle from initial concept to fielded product.Provide technical expertise for simulation products of a specific program and assist Senior Modeling Engineers in preparation of detailed plans; interact with government counterparts as authority on simulation products.Qualifications Bachelor's degree in Engineering, Science, Physics, Mathematics, or related STEM field.Minimum 2 years of relevant experience.Experience applying object‑oriented software design and programming in C/C++.Experience using Python or MATLAB for data evaluation.Experience modeling or simulating physical systems.Experience in modeling, simulation, statistics, and/or analysis for engineering solutions.Ability to obtain an interim Secret U.S. government‑issued security clearance prior to start; U.S. citizenship required.Preferred Qualifications Advanced degree in Engineering, Science, Mathematics, or related STEM field.Experience applying systems engineering principles and working with multiple disciplines.Experience creating and presenting technical briefings.Experience developing signal processing/GNC algorithms or models for missile applications.Experience with control hardware design & test or hardware/software integration.Experience modeling physics or flight dynamics.Experience with UNIX/Linux workstations and Site Configuration Management tools such as Git.Knowledge of radar, signal & image processing, EO/IR models, digital communications, probability & statistics, linear algebra, estimation theory, optimal control, system architecture, inertial navigation, guidance theory.Benefits Salary range: $68,900 – $131,100 USD.Medical, dental, vision, life insurance, short‑term & long‑term disability.401(k) match, flexible spending accounts.Flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, holidays.Annual short‑term and/or long‑term incentive compensation (if applicable).Relocation Relocation assistance available for this position.EEO Statement 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 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.#J-18808-Ljbffr