Sr Systems Operations Research Engineer Onsite

Raytheon; McKinney (TX); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) match

Paid time off

Flexible schedules

Job summary

Raytheon Technologies in McKinney, TX is seeking a qualified candidate for a modeling & simulation-focused role within the Integrated Solutions Modeling & Architecture directorate. You will develop and integrate variable-fidelity computer models and simulations that capture system and system-of-systems effects in complex threat environments.

The position requires an STEM degree with 5+ years of relevant experience, scripting in Python/MATLAB/Shell/Perl, and active Secret clearance; U.S.

Qualifications

• Degree in STEM and 5+ years of relevant experience.
• Scripting experience: Python, MATLAB, Shell, or Perl.
• Experience with modeling and simulation tools (AFSIM/OneSAF/Brawler/STK).
• Active Secret clearance and U.S. citizenship required.

Responsibilities

• Develop and implement analytic approaches for program decisions.
• Create model-based solutions using mission and engagement level simulations.
• Build variable-fidelity models capturing system of systems effects.
• Collaborate with stakeholders to ensure customer satisfaction.

Skills

Python

MATLAB

Shell

Perl

Education

STEM degree (physics/engineering/computational sciences)

Tools

AFSIM

OneSAF

Brawler

STK

Job description

Location:
US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG

Date Posted:
2026-09-09
Country:
United States of America
Location:
US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D BLDG
Position Role Type:
Unspecified
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:
Secret - Current
Security Clearance Status:
Active and existing security clearance required on day 1
At RTX, the world's 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.
Integrated Solutions Modeling & Architecture (ISMA) directorate develops, evaluates, and implements architectures solutions for our customers’ largest, most complex challenges across all operational domains. We define and develop novel solutions to emerging operational needs, push the boundaries of innovation to establish next generation mission solutions, and chart a course for Raytheon and our customers you will be proud to look back on. Supporting this mission are teams driving flexible integration solutions crossing all product areas (sensors, effectors, command and control, logistics and operations), developing tools and methods to evaluate system level studies and visualization based on customer requirements.

What You Will Do

• You will contribute and collaborate in a team environment, receiving inputs from the program, external customers, or team experts, and work on various projects, as you determine, develop, and implement analytic approaches that will generate the supporting data to inform programmatic decisions.
• You will participate in the development and implementation of model-based solutions to support mission trade studies using mission and engagement level simulations to ensure they meet defined requirements and performance.
• Responsible for the development and integration of variable-fidelity computer models and simulations that effectively capture system and system of systems effects in complex threat environments.
• Work closely with internal and external stakeholders to ensure customer satisfaction and business alignment.
• Evaluation of end-to-end system needs to discover system interfaces and data connectivity requirements across the kill-chain.
• Modeling of system and mission kill chains with tools such as Government, Commercial, and Raytheon simulations
• Development of metrics and results products that communicate the chain of events that led to an action.
• Implementation of algorithms to provide next-generation performance across the 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 scripting languages for example: Python, MATLAB, Shell, and/or Perl.
• Experience with Government/Industry Modeling and Simulation tools including Advanced Framework for Simulation, Integration, and Modeling (AFSIM), One Semi-Automated Forces (OneSAF), Brawler, Systems Tool Kit (STK) or similar.
• Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
  

Qualifications We Prefer

• Experience with software development, object-oriented design, C/C++ and/or Java in either Unix or Linux operating environments.
• Experience with Department of Defense (DoD), Intelligence Community (IC), Mission Areas, (e.g., Space, Air, Land) or systems such as radar, electro optical, and infrared sensing systems.
• Experience providing briefs and or presentations to internal or external stakeholders/customers.
• Active Top Secret clearance
• Experience with Military Operations Analysis, Modeling & Simulation and/or data analysis & visualization.
  

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.

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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