Modeling and Simulation Senior Principal Engineer; Onsite

Modeling and Simulation Senior Principal Engineer

Location:

US‑TX‑RICHARDSON‑C37 – 1737 Cityline Dr, Cityline C37

Position Type:
Onsite (primarily in Sterling, VA, Richardson, TX, or McKinney, TX; may require travel to other Raytheon sites)

Security Clearance: TS/SCI with Polygraph (U.S. citizenship required; ability to obtain and maintain U.S. government‑issued security clearance required; active clearance required after day one)

• Interface with senior leaders, stakeholders, end users, and subject matter experts to define production model requirements, validate implemented models, and conduct demonstrations
• Collaborate with a multi‑disciplinary team to define, design, and implement new production model configurations and software features for a Python‑based simulation application
• Employ data analytic methods (e.g., data collection and processing, statistical analysis, distribution fitting, etc.) to maintain production model input parameters
• Conduct verification, validation, and testing of new and revised production model configurations and software features
• Deliver presentations and demonstrations to leaders and stakeholders across multiple levels of the organization, functional disciplines, and business units
• Participate in code reviews and enforce adherence to coding standards and best practices

• Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 10 years of prior relevant experience
• Experience collaborating with customers to define requirements and measures of success
• Experience with simulation modeling and analysis processes for complex real‑world systems: problem definition, data processing, statistics, figures of merit (FoM), model design and translation, verification and validation, visualizations, etc.
• Experience with multiple Python libraries and software packages for backend and/or frontend development in an object‑oriented programming environment:
  Num Py, Pandas, Sim Py, Panel, Bokeh, Pydot, PyQt, Plotly Dash, Holo Viz, Graphviz, etc.
• Experience in interacting with software through a terminal interface:
  Bash, Power Shell, iPython, etc.
• Ability to obtain and maintain U.S. government‑issued security clearance (U.S. citizenship required)

• Strong customer focus
• Experience with statistics, statistical modeling (e.g., logistic regression, Bayesian models), and/or data distribution fitting (e.g., normal, lognormal, Weibull, etc.)
• Experience with implementing Discrete Event Simulation
• Experience in technical leadership/mentorship
• Experience with one or more code hosting and version control tools:
  Bitbucket, Git Hub, Git Lab, Azure Dev Ops, etc.
• Experience working with a team distributed across multiple time zones
• Scrum Master and/or Product Owner certification

• Values:
  Safety, Trust, Respect, Accountability, Collaboration, and Innovation
• Relocation assistance available for this position

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.