Principal Systems Engineer - MBSE

Date Posted : 2025-11-19

Country :

United States of America

Location :

MA133 : Tewksbury, Ma Bldg 3 Concord 50 Apple Hill Drive Concord - Building 3, Tewksbury, MA, 01876 USA

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 : 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 Systems Engineering and Test Capabilities (SE&TC) Discipline organization is the central focus for Mission Systems Integration activities within Raytheon, responsible for defining customer needs, functional and product architecture, requirements definition and decomposition, Model Based Systems Engineering (MBSE), system performance, and System  Security Engineering (SSE).

The Radar Systems Department within the System Engineering Directorate has a charter to be the pre-eminent Systems Engineering team providing subject matter expertise for concept development, architectural design, requirements generation & flowdown, modeling and simulation, systems analysis, integration, test and evaluation of world-class Surveillance Radar Systems to be achieved through our people, processes, technology and performance.

The Radar Systems Department has an opportunity that crosses both the Systems Engineering and Software Engineering disciplines, looking for individuals eager to develop software to support Model Based Systems Engineering (MBSE) in a Radar Product Line environment. The key tenant of MBSE is integration of data from various system engineer tools (such as SysML modeling and requirements management).  In this position the individual will be developing and deploying solutions to manage and analyze complex system engineering data from many different sources.  These capabilities are critical to the success of the Radar systems being developed in the product line.

This position can be located in either Marlborough, MA or Tewksbury, MA and may require occasional travel.

What You Will Do :

Development of architecture, algorithms and requirements SysML models to support Sensor Product Line (SPL) Model Based Systems Engineering (MBSE), including :

• SysML modeling of the DoDAF architecture views for the SPL radar architecture
• SysML modeling of complex radar algorithms and other technical direction
• SysML modeling of requirements and assistance in moving to a hybrid SysML / DOORS requirement development approach

Supporting System Engineering team to capture and resolve complex technical systems engineering issues using MBSE techniques.

Interfacing with System Engineers to understand their MBSE tooling needs to improve accuracy and productivity of System engineering products.

Qualifications You Must Have :

Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of prior engineering experience or equivalent experience.

2 years of experience with System Engineering Product Development Cycle or related product cycle.

SysML or related modeling experience

An active and transferable Secret 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 the required security clearance.

Qualifications We Prefer :

Experience with Model Based Systems Engineering (MBSE)

Strong analytical, communication, and writing skills

Experience with Gears Feature Based variation management tools

Experience with UML and SysML modeling tools

Experience with DOORS requirements and DXL scripting

Experience with Python, Java or Matlab

Radar architecture and / or algorithms

Self-starter with the ability to independently pursue information and solve problems

8 years of experience with Systems / Software Engineering Product Development Cycle or related product cycle.

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!

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.

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 101,000 USD - 203,000 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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