Raytheon Technologies

Sr. Principal Systems Engineer - STARS Architecture Modernization (Onsite)

Raytheon Technologies$132K — $251K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Degree in STEM field plus 10 years of experience or Advanced Degree and 7 years of experience
  • Over 10 years in complex systems architecture or systems engineering
  • Experience designing safety-critical or mission-critical systems
  • Expert in Cameo Systems Modeler and MBSE methods
  • Strong understanding of system requirements and verification strategies
  • Proven track record of leading architectural projects
  • Excellent communication and technical leadership abilities.

Responsibilities

  • Lead architecture development for next-gen STARS system design
  • Create and maintain MBSE models to represent system attributes
  • Conduct architecture trade studies and develop technical roadmaps
  • Collaborate with cross-functional engineering teams to ensure alignment
  • Set and enforce architectural and modeling standards
  • Support requirements decomposition using MBSE techniques
  • Present architectural concepts to stakeholders and mentor junior engineers.
  • Ensure compliance with safety and regulatory requirements.

Benefits

  • Medical, dental, and vision insurance
  • Three weeks of vacation for new employees
  • Generous employer-matched 401(k) plan
  • Tuition and student loan reimbursement programs
  • Life insurance and disability coverage
  • Parental and adoption leave benefits
  • Wellness program incentives
  • Virtual doctor visit options and child/elder care services
  • Employee Assistance Plan with free counseling sessions.
Full Job Description
Date Posted:
2026-09-03
Country:
United States of America
Location:
US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3
Position Role Type:
Onsite
U.S. Citizen, U.S. Person, or Immigration Status Requirements:
U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.
Security Clearance Type:
None/Not Required
Security Clearance Status:
Not Required

We are seeking an experienced Senior Principal Systems Engineer to lead the definition, design, and development of a next-generation architecture for the STARS (Standard Terminal Automation Replacement System) platform. The ideal candidate will bring deep systems engineering expertise, demonstrated leadership in large-scale system architecture modernization, and advanced proficiency with Cameo Systems Modeler and model-based systems engineering (MBSE) methodologies.

This role will serve as the technical architect responsible for shaping the system's long-term architectural vision, ensuring alignment with program goals, safety requirements, and future scalability needs. The candidate will collaborate closely with cross-functional engineering teams, program leadership, and external stakeholders to drive a cohesive, sustainable architectural baseline.

What You Will Do:
  • Lead the architecture development effort for the next-generation STARS system, including conceptual architecture, logical and physical architectures, and interface definitions.
  • Develop and maintain high-quality MBSE models using Cameo to represent system behavior, structure, interfaces, constraints, and verification pathways.
  • Perform architecture trade studies and define technical roadmaps to guide modernization efforts.
  • Collaborate with systems engineering, software engineering, hardware engineering, integration/test, and program management to ensure architectural alignment and feasibility.
  • Establish and enforce architectural and modeling standards, patterns, and best practices.
  • Support requirements decomposition and allocation using MBSE techniques to ensure traceability and consistency across system artifacts.
  • Present architectural concepts, analyses, and decision rationales to internal and external stakeholders, including leadership and customers.
  • Mentor junior engineers in MBSE methodologies, Cameo usage, and system architecture principles.
  • Ensure all architectural work complies with safety, regulatory, and certification requirements relevant to NAS systems.


Qualifications You Must Have:
  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience
  • 10+ years of experience in complex system architecture, systems engineering, or equivalent roles.
  • Proven experience developing architectures for safety-critical, mission-critical, or large-scale distributed systems.
  • Expert-level proficiency with Cameo Systems Modeler, SysML, and MBSE processes.
  • Strong knowledge of system requirements, interface design, integration, and verification strategies.
  • Demonstrated ability to lead architectural efforts from concept through implementation.
  • Excellent communication, presentation, and technical leadership skills.


Qualifications We Prefer:
  • Experience with FAA systems, ATC/ATM domain, or other highly regulated environments.
  • Familiarity with STARS or related NAS infrastructure.
  • Experience with digital engineering pipelines, model governance, or toolchain integration.
  • Knowledge of enterprise architecture frameworks (DoDAF, UAF).


What We Offer:

Some of our competitive benefits package includes:
  • Medical, dental, and vision insurance
  • Three weeks of vacation for newly hired employees
  • Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
  • Tuition reimbursement program
  • Student Loan Repayment Program
  • Life insurance and disability coverage
  • Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
  • Birth, adoption, parental leave benefits
  • Carrot Health, fertility, and family planning
  • Adoption Assistance
  • Autism Benefit
  • Employee Assistance Plan, including up to 10 free counseling sessions
  • Healthy You Incentives, wellness rewards program
  • Doctor on Demand, virtual doctor visits
  • Bright Horizons, child and elder care services
  • Teladoc Medical Experts, second opinion program
  • And more!


Please ensure the role type (defined below) is appropriate for your needs before applying to 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.

The salary range for this role is 132,400 USD - 251,600 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.

About Raytheon Technologies

Raytheon Solipsys, a wholly-owned subsidiary of the Raytheon Company, is an industry leader in the development of integrated Command and Control (C2) Network-Centric solutions for the Domestic and International DoD and Homeland Security. Through proven systems and software engineering practices, built on the invention and application of innovative technologies, they deliver the C2 infrastructure necessary to effectively control security/military forces in any environment. Their reliable solutions assure information superiority, increased shared awareness, deep sensor reach, aircraft control, air defense, disaster management, and time-critical decision making.

Raytheon Technologies Careers

Join the innovative world of Raytheon Technologies, a leader in aerospace and defense, where we offer unparalleled job opportunities in an environment that champions diversity, leadership, and professional growth.

Work You’ll Do

At Raytheon Technologies, you’ll be part of a company that values innovation and leadership. Our team is dedicated to solving some of the most complex challenges in aerospace and defense, making significant impacts worldwide. With a culture that fosters diversity and inclusion, you will collaborate with some of the brightest minds in the industry.

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Join our team of over 60,000 professionals globally, who are not only experts in their fields but are also driven by a passion for innovation and excellence. At Raytheon Technologies, you are positioned at the forefront of the industry, where your work directly contributes to groundbreaking advancements in technology and defense.

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Whether you’re starting your career or looking to advance, Raytheon Technologies offers a range of employment and internship opportunities that can help you achieve your professional goals. Our internships provide a solid foundation of skills and experiences, while our full-time positions offer a path to personal and professional growth within the company.

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Our employees enjoy a competitive package of benefits and rewards that reflect their invaluable role in our company. From health and wellness programs to performance bonuses and flexible working conditions, we ensure our team members are well taken care of.

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Learn more about Raytheon Technologies
Size
14,771 employees
Market Cap
$32,494
Industry
Founded
1922
NASDAQ

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