Systems Engineer II, Modeling Simulation Developer Onsite

Company: RTX
Location: Mckinney
Posted on: April 2, 2026

Job Description:

Date Posted: 2026-03-16 Country: United States of America Location: US-TX-MCKINNEY-513WD ~ 2501 W University Dr ~ WING D 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 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 is seeking a System Engineer II – Modeling & Simulation Developer, to be a part of a team of systems engineers dedicated to delivering best-in-class Raytheon products for the warfighter through modeling, simulation, and analysis. Your work will help demonstrate mission effectiveness of systems and system-of-systems operating in complex threat environments. On this team, you will be responsible for developing mission simulations, virtual prototypes, and system emulators that represent a variety of mission technologies including sensors, effectors, communications, command and control, and more. This will include integrating live-virtual-constructive (LVC) simulations with other simulations, custom software, commercial-off-the-shelf software (COTS), government furnished models, hardware, and user interfaces. What You Will Do Develop and integrate new capabilities into existing simulation models. Run simulation environments and generate analysis data for evaluation. Document and implement design approaches Define and execute analysis plans. Participate in technical reviews with internal and external customers. Contribute, collaborate in a team environment. Communicate with many levels of program and government stakeholders What You Will Learn Integrating distributed Live-Virtual-Constructive (LVC) simulation components. IEEE 1278 DIS, IEEE 1516 HLA, and/or TENA 2D and 3D software rendering, including Texturing, Shaders, OpenGL, Open Scene Graph, etc. Gaming engines or related technologies: Unreal / Creator / 3DS Max, 3D terrain and object modeling, Grasp of OS fundamentals (Shared Mem, Multi-Threaded, etc.) Qualifications You Must Have Typically requires a Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 2 years of prior engineering experience. Experience with using the following software applications and configuration management tools: C/C++, Python, Perl, Object-oriented programming design (OOP/OOD), GitHub, Subversion (SVN), etc Experience with software libraries and application program interface (API) Ability to obtain and maintain a US Secret security clearance prior to the start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer Experience developing software in Windows and Linux Environments. Experience with Agile Development Lifecycles. Experience with software or system modeling practices (eg: UML, Syms, DoDAF) Experience with simulation tools and visualization environments, including: SIMDIS, AFSIM, Simulink, STK, MaK Image Generation systems Experience with scientific computing software (eg: MATLAB) to evaluate analysis data. Experience with RADAR, Electro Optical (EO), and/or Infrared (IR) sensing systems. 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. Not Relocation Eligible – Relocation assistance not available Learn More & Apply Now! (Optional) Please consider the following role type definition as you apply for this role. Onsite : Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS) , an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: https://www.state.gov/m/ds/clearances/c10978.htm North Texas: https://careers.rtx.com/global/en/raytheon-north-texas-location 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 68,900 USD - 131,100 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms

Keywords: RTX, Richardson , Systems Engineer II, Modeling Simulation Developer Onsite, IT / Software / Systems , Mckinney, Texas