Systems Engineer II - Modeling Simulation & Analysis Engineer

RTX (Raytheon); Tucson (AZ); On-site; USD 90,000 - 120,000; Full time

Job summary

RTX (Raytheon) invites applications for a Systems Engineer II - Modeling Simulation & Analysis in Tucson, AZ. The role focuses on creating high fidelity simulations for missile design, supporting trade studies, and collaborating across GNC and signal processing teams to ensure program success.

Responsibilities include developing modeling solutions, guiding junior engineers, and interfacing with government counterparts as needed.

Qualifications

• Bachelor's degree in Engineering, Science, Physics, Mathematics or related STEM field.
• 2+ years of relevant experience in systems engineering or modeling/simulation.

Responsibilities

• 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/subsystem performance.
• Collaborate with GNC, Signal Processing, and other performance personnel per program schedule.
• Provide technical guidance to teammates and interact with government counterparts as an authority on simulation products.
• Shape project plans and support development from concept to fielded product.

Skills

C/C++ programming

Python

MATLAB

Modeling/Simulation

Team collaboration

Security clearance eligibility

Education

Bachelor's degree in STEM

Tools

UNIX/Linux

Git

Job description

Date Posted: 2026-09-10

Country: United States of America

Location: US-AZ-TUCSON-9020 ~ 9020 S Rita Rd ~ BLDG 9020

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: Secret

Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

We are looking for Systems Engineer II - Modeling Simulation & Analysis Engineers who enjoy solving complex problems, engaging in a dynamic team environment, and are eager to learn.

As a Systems Engineer II - Modeling Simulation & Analysis Engineer , you will participate in challenging multi-disciplinary work across integrated product teams consisting of Guidance, Navigation & Control (GNC), Signal Processing and missile-and-sensor-level Performance Simulations. Our Performance Simulation teams provide, develop, and maintain high fidelity performance simulations, evaluate system performance, support new business initiatives and develop & execute technology roadmaps. This is an Onsite role in Tucson, AZ.

What You will Do

• You will create high fidelity simulations and models for missile design, performance assessment, and flight test support
• You will be responsible for the development and implementation of modeling solutions, and subsequently conduct trade studies and evaluation of system and subsystem performance
• You will work in a team environment, receiving input from the team supervisors and providing guidance and/or direction to other team members
• You will collaborate with Guidance, Navigation & Control (GNC), Signal Processing, and other performance personnel to perform simulation activities according to the program schedule
• You will work on different projects, determine, and develop approaches and solutions, and provide development guidance throughout the product lifecycle from initial concept to fielded product
• You will provide technical expertise for the simulation products of a specific program, and assist Senior Modeling Engineers in the preparation of detailed plans, and may interact with government counterparts as an authority on simulation products

Qualifications You Must Have

• Typically requires a Bachelor's degree in Engineering, Science, Physics, Mathematics, or a related STEM degree and a minimum of 2 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 is required prior to start date with the ability to obtain special program access after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer

• Advanced Degree in Engineering, Science, Mathematics, or related STEM degree
• Experience using applied system engineering principals, experience working on a team and/or by yourself, interfacing with multiple engineering disciplines
• Experience creating and/or presenting technical briefings
• Experience developing signal processing / GNC algorithms or models for missile applications
• Experience with control hardware design & test and/or hardware & software integration
• Experience modeling physics and/or modeling physical systems as related to flight dynamics
• Experience using UNIX / Linux based workstations and using Software Configuration Management tools such as Git
• Course work or experience in some of the following fields: 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

What We Offer

Our values drive our actions, behaviors, and performance