Sr. Principal Systems Engineer - STARS Architecture Modernization; Onsite

Date Posted:  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

• 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.

• 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.

• 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).

• 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,  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!

Salary range: 132,400 USD - 251,600 USD. The salary range provided is a good faith estimate representative of all experience levels.

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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