Senior Principal Modeling & Simulation Engineer (On-Site)

Raytheon; El Segundo (CA); On-site; USD 137,000 - 275,000; Full time

Job summary

A leading defense contractor seeks a Senior Principal Modeling & Simulation Engineer in El Segundo, CA, to drive innovative modeling solutions and collaborate on advanced RF systems. Candidates should bring a strong background in engineering and relevant experience, with an active security clearance preferred.

Benefits

Relocation Eligible

Medical, Dental and Vision Insurance

401(k) match

Flexible work schedules

Employee assistance program

Qualifications

• Typically requires 10 years of engineering experience or 8 years with an advanced degree.
• Active Secret security clearance required.
• Experience leading technical teams and balancing development priorities.

Responsibilities

• Develop high fidelity simulations and models for subsystems and systems.
• Collaborate with SMEs to guide simulation direction.
• Conduct trade studies and evaluate performance of systems.

Skills

Signal Processing

Modeling

Simulation

C++

Python

MATLAB

Education

Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM)

Advanced degree (preferred)

Job description

Senior Principal Modeling & Simulation Engineer (On-Site)

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Senior Principal Modeling & Simulation Engineer (On-Site)

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Join to apply for the Senior Principal Modeling & Simulation Engineer (On-Site) role at Raytheon

Date Posted:

2025-05-29

Country:

United States of America

Location:

CA320: El Seg.-So. Campus Bldg E01 2000 East El Segundo Boulevard Building E01, El Segundo, CA, 90245 USA

Position Role Type:

Onsite

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

Security Clearance:

Secret - Current

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.

The Electronic Warfare & Signal Processing group is looking to hire an experienced Senior Principal Modeling and Simulation Engineer with knowledge and technical expertise in modeling and simulation to support the design, development, and deployment of software products containing advanced RF capabilities to address emerging threats. This position requires an ability to drive technical solutions for multi-disciplined technical teams during all phases of capture and development. This position is full-time on-site in El Segundo, CA in support of Advanced Technologies programs.

What You Will Do

• Develop high fidelity simulations and models for subsystems and systems as an Individual Contributor, Technical Lead, or both.
• Responsible for the development and implementation of modeling solutions, and subsequently conduct trade studies and evaluation of system and subsystem performance.
• Collaborate with different SMEs, receiving input from leads and customers that guide the direction of the simulations and models.
• Selected candidate will be required to obtain and maintain special access program (SAP) clearance and/or an SCI clearance.
  
  

What You Will Learn

• Verbal and written communication skills for engagement with program management, technical team members, customers, subcontractors, and industry partners.
• Manage modeling and simulation product throughout the lifecycle and support new business efforts. Development efforts will be focused on front end development, with a vision towards extending and transitioning to end users/systems.
  
  

Qualifications You Must Have

• Typically requires bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and ten (10) years of engineering experience OR an advanced degree with eight (8) years of engineering experience.
• Experience with Signal Processing (AMTI), Tracking, Communications, or Resource Management.
• Experience developing models and evaluating data sets in one or more of the following languages: C, C++, Java, Python, and MATLAB.
• Experience in modeling, simulation, statistics, or analysis for existing or proposed engineering solutions.
• 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

• Active DoD Top Secret clearance with investigation within five years.
• Experience leading and training technical teams of junior to mid-level systems engineers and analysts, interfacing with customers, and the ability to balance development priorities with near/long term program objectives.
• Engineering analytical and experience in capture phases Gates 0-4 or experience generating test plans and procedures for software products.
• Requirements development and analysis.
• Experience with software integration and using Linux OS.
• Experience developing and presenting technical briefings.
  
  

What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.
• Relocation Eligible
  
  

The salary range for this role is 137,000 USD - 275,000 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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Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Defense and Space Manufacturing

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