Systems Engineer II-Modeling and Simulation

Date Posted: 2026-08-01 | Location: Aurora, CO (16800 E Centretech Pkwy, BLDG S75) | Onsite role | U.S. citizenship required for active and transferable DoD Secret security clearance on day 1.

About the Role

As a Systems Engineer II – Modeling, Simulation & Analysis at Raytheon, an RTX Business, you will support the development of next-generation missile and sensor systems. You will work across integrated product teams, including Guidance, Navigation & Control (GNC), Signal Processing, and Performance Simulation engineers, to develop and evaluate high-fidelity simulation environments that ensure mission success.

Responsibilities

• Develop high-fidelity models and simulations to support missile design, performance assessment, and flight test activities.
• Design, develop, and implement modeling and simulation solutions 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 influencing 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 enabling engineering analyses and system verification activities.

Requirements

• 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 required prior to start date, with the ability to obtain Special Program Access (SAP) after start.

Preferred Qualifications

• 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.

Benefits

• Medical, dental, and vision insurance.
• Life insurance, short-term disability, and long-term disability coverage.
• 401(k) match.
• Flexible spending accounts.
• Flexible work schedules.
• Employee assistance program.
• Employee Scholar Program.
• Parental leave.
• Paid time off and holidays.
• Annual short-term and/or long-term incentive compensation programs (eligibility dependent on role level and collective-bargaining agreement).

Pay

The salary range for this role is $68,900 – $131,100 USD. The range is a good faith estimate representative of all experience levels. Factors considered include role, function, responsibilities, work experience, location, education/training, and key skills.