Systems Engineer II-Modeling and Simulation

RTX (Raytheon); Aurora (CO); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Relocation eligible

Job summary

Raytheon Technologies (RTX) in Aurora, CO is seeking a Systems Engineer II focused on Modeling, Simulation & Analysis for missile and sensor systems. The role involves developing high-fidelity models and working with cross-functional teams to support mission success.

The position requires a STEM degree with 2+ years’ experience, proficiency in C/C++, Python or MATLAB, and an active DoD Secret clearance with SAP eligibility after start. On-site work in Aurora, CO is expected.

Qualifications

• Bachelor's Degree in Science/Engineering/Math with 2+ years of relevant experience.
• Experience developing software with object-oriented programming in C and/or C++.
• Proficiency in Python and/or MATLAB for data analysis and modeling.

Responsibilities

• Develop high-fidelity models and simulations to support missile design and performance assessment.
• Design and implement modeling/simulation solutions to evaluate system performance.
• Collaborate with GNC, Signal Processing, Systems Engineering and Software teams to run simulations.
• Analyze results and provide technical recommendations impacting architecture and design.
• Support lifecycle activities from concept to verification and fielded operations.
• Participate in technical reviews and resolve challenging engineering problems.
• Contribute to development and validation of simulation tools for analyses.

Skills

C/C++

Python

MATLAB

Git

Education

Bachelor's Degree in STEM

Tools

Git

Job description

Date Posted: 2026-09-14

Country: United States of America

Location: US-CO-AURORA-S75 ~ 16800 E Centretech Pkwy ~ BLDG S75

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: 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.

We have an exciting opportunity for a Systems Engineer II - Modeling, Simulation & Analysis supporting one of our premier programs within Raytheon, an RTX Business. In this role, your experience with modeling and simulation, systems engineering analysis, software development, and performance assessment will be instrumental in the development of next-generation missile and sensor systems. You will work across integrated product teams consisting of Guidance, Navigation & Control (GNC), Signal Processing, and Performance Simulation engineers to develop and evaluate high-fidelity simulation environments that support mission success. The work is on-site in Aurora, CO.

What You Will Do

• Develop high-fidelity models and simulations to support missile design, performance assessment, and flight test activities.
• Design, develop, and implement modeling and simulation solutions used to evaluate system and subsystem performance through trade studies and engineering analyses.
• Collaborate with Guidance, Navigation & Control (GNC), Signal Processing, Systems Engineering, and Software Engineering teams to execute simulation activities in support of program objectives and schedules.
• Analyze simulation results and provide technical recommendations that influence system architecture, performance, and design decisions.
• Support the product lifecycle from concept development through system integration, verification, flight test, and fielded operations.
• Participate in multidisciplinary technical reviews and collaborate with engineering teams to resolve technical challenges and improve system performance.
• Support the development and validation of simulation tools that enable engineering analyses and system verification activities.

Qualifications You Must Have

• Typically requires a Bachelor's Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 2 years of prior relevant experience.
• Experience developing software using object-oriented programming principles with C and/or C++.
• Experience using Python and/or MATLAB to analyze engineering data and develop modeling solutions.
• Experience developing models, simulations, or engineering analyses supporting complex technical systems.
• Active and transferable DoD Secret U.S. government-issued security clearance is required prior to the start date, with the ability to obtain Special Program Access (SAP) after start.

Qualifications We Prefer

• Advanced Degree in Engineering, Science, Mathematics, or another STEM discipline.
• Experience applying systems engineering principles within multidisciplinary engineering teams.
• Experience developing models or simulations of physical systems and applying modeling, simulation, or engineering analysis techniques to evaluate system performance.
• Experience developing and presenting technical briefings to internal and external stakeholders.
• Experience developing Guidance, Navigation & Control (GNC) algorithms, signal processing algorithms, or missile performance models.
• Experience with hardware integration, control systems design, and hardware/software integration activities.
• Experience modeling flight dynamics, physics-based systems, or missile performance characteristics.
• Experience working in UNIX or Linux environments and using software configuration management tools such as Git.
• Experience or Coursework in radar, signal and image processing, EO/IR systems, digital communications, probability and statistics, linear algebra, estimation theory, optimal control, system architecture, inertial navigation, or guidance theory.

What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.
• Relocation eligible.