Senior Principal Systems Architect - MBSE (Cameo)

Prattwhitney; Marlborough (MA); On-site; USD 132,000 - 252,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Generous 401(k) plan with matching and

Tuition reimbursement

Student Loan Repayment Program

Life insurance and disability coverage

Parental leave benefits

Wellness incentives

Flexible benefits options

Job summary

RTX seeks an experienced MBSE Architect to lead the architecture development for the STARS system, creating conceptual, logical, and physical architectures and defining interfaces. You will build high-quality MBSE models with Cameo and guide modernization through trade studies and roadmaps.

You will collaborate across systems, software, hardware, and program management to ensure alignment, governance, and traceability, mentoring others in MBSE and ensuring regulatory compliance across NAS

Qualifications

• 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.

Responsibilities

• 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.

Skills

MBSE

SysML

Cameo Systems Modeler

Architecture leadership

Requirements traceability

Interface design

Proven communication

Education

STEM degree

10+ years architecture experience

Tools

Cameo

Job description

RTX seeks an experienced MBSE Architect to lead the architecture development for the STARS system, creating conceptual, logical, and physical architectures and defining interfaces. You will build high-quality MBSE models with Cameo and guide modernization through trade studies and roadmaps.

You will collaborate across systems, software, hardware, and program management to ensure alignment, governance, and traceability, mentoring others in MBSE and ensuring regulatory compliance across NAS