Senior Modeling and Simulation Software Engineer/Sr Software Engineer (Remote)

Date Posted:

2026-01-21

Country:

United States of America

Location:

US-VA-REMOTE

Position Role Type:

Hybrid

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after 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.

Raytheon’s Mission Applied Science & Technology (MAST) directorate is seeking a Modeling and Simulation Senior Software Engineer to join our Factory and Data Solutions team. The MAST directorate is an energetic multi-disciplinary team of over 60 engineers working collaboratively with internal and external customers to develop novel solutions for data science and emerging technology applications. Our team pushes the boundaries of innovation and creativity to establish next-generation mission solutions from system-level up to campaign level.

We are seeking a skilled Software Engineer with a primary focus on developing a web-based application in Python for simulation, modeling, and analysis of factory production models. Other potential project focus areas include software development for mission management, command and control systems, AIML applications, or Live Virtual Constructive simulation environments. The ideal candidate will have a passion for designing and developing software solutions to enable data-driven decision-making, such as trade-off analyses. This role requires collaborating with a multi-disciplinary team that is distributed across time zones. You must have the ability to manage time and resources to meet assigned deadlines working within an Agile development environment.

This position is remote. Employees working remote will work primarily offsite with travel to site location as needed.

What You Will Do

• Collaborate with a multi-disciplinary team to define, design, and implement new features for a Python based web-application

• Produce documentation related to software artifacts across the lifecycle including design documents, test procedures, and developer notes

• Participate in code reviews and support adherence to coding standards and best practices

• Maintain and optimize existing code base for performance and efficiency

• Regularly report progress and status to leadership within an Agile team

Qualifications You Must Have

• Typically requires a bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) degree and a minimum of 5 years of prior relevant experience

• Experience with Python scripting language

• Experience in one or more of the following Python libraries and software packages for backend and frontend development:

  • NumPy, Pandas, SimPy, Panel, Bokeh, Pydot, PyQt, Plotly Dash, HoloViz, Graphviz, etc.

• Experience with one or more of the following code hosting and version control tools:

  • Bitbucket, GitHub, GitLab, Azure DevOps, etc.

• Experience in software development lifecycle, including requirements, design, implementation, unit, and system testing, etc.

• The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer

• Experience with automated testing using PyTest

• Experience with statistics, statistical modeling (e.g., logistic regression, Bayesian models, etc.), and/or data distribution fitting (e.g., normal, lognormal, Weibull, etc.)

• Familiarity with Simulation Modeling and Analysis, including Discrete Event Simulation

• Experience working with a team distributed across multiple time zones.

• Experience with Agile / Scrum software development methodologies

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. 

Learn More & Apply Now! 

• Remote: This position currently is designated as remote. Employees who are working in remote roles will work primarily offsite (from home) but may be expected to travel to the site location as needed. The successful candidate for this role will be required to reside and work from one of the 50 U.S. states (excluding U.S. territories).

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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.

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