Sr. Systems Engineer - Modeling Simulation Analysis Engineer

Location: Tucson, AZ – 9020 S Rita Rd, BLDG 9020

Position Title: Sr. Systems Engineer – Modeling, Simulation & Analysis Engineer

This Onsite role in Tucson, AZ involves developing high‑fidelity simulations and models for missile design, performance assessment, and flight test support. The engineer will collaborate across Guidance, Navigation & Control (GNC), Signal Processing, and other performance teams to evaluate system performance, conduct trade studies, and guide the product lifecycle from concept to fielded product.

• 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.
• Collaborate with GNC, Signal Processing, and other performance personnel to perform simulation activities according to the program schedule.
• Work on different projects, determine and develop approaches and solutions, and provide development guidance throughout the product lifecycle from initial concept to fielded product.
• Provide technical expertise for the simulation products of a specific program and assist Senior Modeling Engineers in the preparation of detailed plans.
• Interact with government counterparts as an authority on simulation products.

• Bachelor’s degree in Engineering, Science, Physics, Mathematics, or a related STEM field and a minimum of 5 years of relevant prior experience.
• Experience applying object‑oriented software design and programming in C or C++.
• Experience using Python or MATLAB for evaluation of data sets.
• Experience modeling or simulating physical systems.
• Experience in modeling, simulation, statistics, and/or analysis for existing or proposed engineering solutions.
• Ability to obtain an Interim Secret U.S. government‑issued Security Clearance prior to start date; U.S. citizenship is required.

• Advanced degree in Engineering, Science, Mathematics, or related STEM field.
• Experience with applied system engineering principles and cross‑disciplinary teamwork.
• 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 and/or flight dynamics for missile applications.
• Experience with UNIX / Linux workstations and version control tools such as Git.
• Course load or experience in radar, signal & image processing, radar and/or EO/IR environment models, digital communications, probability and statistics, linear algebra, estimation theory, optimal control, system architecture, inertial navigation, guidance theory.

• Salary range: $86,800 – $165,200 USD.
• Relocation assistance available.
• Comprehensive benefits including medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, parental leave, paid time off and holidays.
• Eligibility for annual incentive compensation programs based on level and business unit.

• U.S. citizenship required.
• Active and transferable DoD Secret clearance required prior to start; ability to obtain Inter­im clearance prior to start date.

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.