Principal Systems Engineer - Onsite Cambridge MA

Raytheon; Cambridge (MA); On-site; USD 118,000 - 225,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) match

Flexible spending accounts

Paid time off

Parental leave

Annual incentive programs

Job summary

Raytheon is seeking a Principal Systems Engineer to join the Systems Engineering and Test Capabilities (SETC) Discipline in Cambridge, MA. The role spans the full lifecycle from concept to deployment, with heavy MBSE and SysML modeling, and strong cross-functional collaboration.

The position onsite at a customer facility requires a STEM background, 8+ years of engineering experience, and experience with DOORs, MBSE, and SysML tools. Security clearance is a prerequisite.

Qualifications

• Bachelor’s in STEM and 8+ years of engineering experience.
• Experience with systems requirements, software, and hardware; systems integration or testing is a plus.
• Experience with DOORs, MBSE, and Cameo / MagicDraw.

Responsibilities

• Develop requirements, algorithms, concepts of operations, system trades, and interfaces.
• Develop and maintain SysML models and generate design documentation.
• Coordinate with Electrical and Software engineering to guide subsystem development and ensure requirements traceability.
• Interface with customers and program stakeholders regularly.
• Conduct and support technical peer reviews and provide guidance to team members.
• Communicate technical topics clearly to both technical and non-technical audiences.

Skills

MBSE

SysML

Requirements development

Education

Bachelor’s in STEM

Tools

DOORs

SysML modeling tools

Cameo / MagicDraw

Job description

Location: US-MA-CAMBRIDGE-555-CUST ~ 555 Technology Sq ~ TECHNOLOGY (External Site)

Date Posted: 2026-09-08

Country: United States of America

Location: US-MA-CAMBRIDGE-555-CUST ~ 555 Technology Sq ~ TECHNOLOGY (External Site)

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: Secret - Current

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 talented and motivated Principal Systems Engineer to join our team within the Systems Engineering and Test Capabilities (SETC) Discipline, supporting the LTAMDS and GhostEye Radars. This role offers a unique opportunity to work across the full lifecycle of the product, from concept to deployment.

What You Will Do:

• Core Systems Engineering: Develop requirements and algorithms, concepts of operations, system trades, and system interfaces
• Model Based Systems Engineering (MBSE): Develop and maintain detailed SysML descriptive system models, linking and synchronization of requirements, and generate design documentation / views
• Interface with cross functional teams, such as Electrical and Software engineering, to help guide subsystem development and ensure compliance with requirements throughout the entire product lifecycle
• Frequent interface with Customer and other program stakeholders and collaborators
• Conduct and/or support technical peer reviews and provide constructive feedback; Document and provide technical guidance to other members of the design team
• Communicate technical topics and issues in a clear and concise manner to both technical peers and non-technical team members

This role is based ~100% onsite at a customer facility in Cambridge, MA.

Qualifications You Must Have:

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of prior engineering experience.
• Experience with systems requirements, systems software, and systems hardware; experience with systems integration and/or systems test is a plus
• Experience with DOORs, MBSE, and Cameo / MagicDraw

Qualifications We Prefer:

• Experience in software, hardware, electrical and/or mechanical design.
• Experience in requirements development, design, verification, and validation.
• Experience syncing and tracing requirements between DOORs and SysML modeling tools such as Cameo / MagicDraw.
• Experience managing trade studies and design decisions.
• Experience effectively presenting ideas to senior level stakeholders.
• Experience in all phases of development: concept, requirements, design, implementation, and test.
• Experience supporting design reviews during all phases of development.
• 10 or more years of experience on DoD and/or space programs.

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 118,300 USD - 224,900 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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