Principal Systems Engineer - Onsite Cambridge MA

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

Benefits offered by this job

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

Holidays

Job summary

Raytheon is seeking a Principal Systems Engineer to join the SETC discipline for LTAMDS and GhostEye Radars, supporting the product life cycle from concept to deployment. The role emphasizes MBSE, SysML modeling, and cross-functional collaboration across engineering teams.

The position requires a STEM degree and 8+ years of engineering experience, with active U.S. security clearance and 100% onsite work in Cambridge, MA. Competitive benefits accompany the salary range stated.

Qualifications

• Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) is required.
• Experience with systems requirements, systems software, and systems hardware; experience with systems integration and/or systems test is a plus.
• Experience syncing and tracing requirements between DOORs and SysML modeling tools such as Cameo / MagicDraw.

Responsibilities

• Develop requirements and algorithms, concepts of operations, system trades, and system interfaces.
• Develop and maintain SysML models and generate design documentation.
• Coordinate with Electrical and Software engineering to guide subsystem development and ensure requirement compliance.
• Interface with Customer and program stakeholders.
• Support technical peer reviews and provide feedback.
• Provide guidance to the design team and communicate complex topics clearly.
• Collaborate across full lifecycle from concept to deployment.

Skills

MBSE

SysML

Requirements development

Education

Bachelor's degree in STEM

Tools

DOORS

Cameo/MagicDraw

Job description

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.

Job Summary

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

Location and Work Arrangement

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.

Security Clearance

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.

Salary and Benefits

The salary range for this role is 118,300 USD - 224,900 USD.

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
• 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.

Equal Opportunity Statement

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.

Application Window

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.

Company Overview

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.