Modeling & Simulation Engineer, Sr Systems Engineer (Onsite)

Date Posted:

2026-03-31

Country:

United States of America

Location:

US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD BLDG

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 RTX, the world 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.

As a member in the Concept of Operations (CONOPS) Analysis Section, you will be joining a team of high-performing engineers focused on using modeling and simulating tools to conduct analysis on current and future integrated systems including sensors, effectors, command and control capabilities, to support the development of next generation of CONOPS for countering peer competitor threats across the operational domains. Our team’s efforts include conducting analysis at the campaign, mission and system level based on our warfighting customer requirements.  
 

The CONOPS Analysis section is hiring for a Modeling and Simulation Engineer, Senior Systems Engineer. This is an onsite role in either Woburn or Tewksbury, MA. 

 What You Will Do

• Develop and implement model-based solutions that meet defined requirements and functions that will support mission trade studies and performance simulations. 

• Contribute knowledge of performance engineering practices and procedures to evaluate work across a wide range of intriguing computational problems. 

• Contribute and collaborate in a team environment receiving input from the program or team experts. The projects will vary in mission areas where your knowledge across the breadth of architectures will contribute to the development of the most effective approaches and solutions. 

• Evaluate end-to-end system requirements to understand system interfaces and data connectivity across military kill-chains. 

• Analyze data to understand performance requirements. 

• Develop analytical metrics to validate proposed architectures against requirements as well as help shape future tech growth. 

• Develop or implement algorithms to provide next-generation performance across entire system of systems. 

Qualifications You Must Have 

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.

• Experience with modeling and/or simulating systems. 

• Experience with MATLAB, Python, and/or C/C++ 

• Ability to obtain Interim Secret U.S. government issued security clearance is required prior to start date. 

Qualifications We Prefer 

• Advanced Degree in one of the following majors: Systems Engineering, Software Engineering, Operations Research, Math, Applied Math, Industrial Engineering, Physics, or Aerospace Engineering. 

• Active Secret or Top Secret DoD clearance. 

• Knowledge of the system engineering life-cycle model. 

• Experience in data analysis and statistics with large volumes of data. 

• Experience conducting analyses and studies, including how to define and execute a study. 

• Experience evaluating new concepts of operation and developing new technology use cases. 

• Demonstrated technical and analytical skills to develop credible results for presenting to the customer. 

• Experience in concepts such as Concept of Operations (CONOPS), system tradeoffs, threat definitions, and system of system assessments. 

What We Offer 

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected