Principal Embedded System Security Engineer (Onsite - Marlborough, MA) Secret Clearance Required

Collins Aerospace; Marlborough (MA); On-site; USD 107,500 - 204,500; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Generous 401(k) with employer matching

Tuition reimbursement program

Three weeks of vacation

Job summary

Collins Aerospace seeks a Principal Embedded Systems Security Engineer to join its cybersecurity team in Marlborough, MA. This position focuses on supporting defense programs with a strong emphasis on cybersecurity and security assessments.

The ideal candidate will define cybersecurity requirements, lead integration efforts, and produce documentation. Candidates must have a STEM degree, U.S. citizenship, and an active SECRET security clearance. Relocation assistance available.

Qualifications

• Minimum of 8 years of relevant experience or 5 years with an advanced degree.
• Active and transferable SECRET U.S. government issued security clearance required.
• U.S. citizenship is mandatory.

Responsibilities

• Define cybersecurity requirements and collaborate with engineering.
• Lead system design discussions for security features.
• Develop documentation for cybersecurity processes.

Skills

Requirement definition

Cybersecurity engineering

System architecture design

Verification and validation

Education

Degree in STEM field

Tools

DOORS

JIRA

JAMA

Job description

Date Posted

2026-06-11

Country

United States of America

Location

US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2

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

DoD Clearance: Secret

Security Clearance Status

Active and existing security clearance required on day 1

Job Overview

You will be a member of the Collins Product Cybersecurity Organization (PCO) supporting strategic defense and protected communication systems programs. We are a growing business developing new products in an aggressive and competitive market. The new designs are exciting and technically challenging. The Product Cybersecurity Engineering DoD East Massachusetts team is hiring a Principal Embedded Systems Security Engineer to support programs for our US military, keeping the world safe from foreign threats. Our goal is to align each new hire with a position that best suits their skills and allows for career growth. The ideal candidate will be skilled in requirement allocation and decomposition, analyzing system architectures, designing security features and principles, assessing security vulnerabilities (scanning), and formal cybersecurity test and evaluation (CT&E). The candidate will report to the Senior Manager of Cybersecurity Engineering and work collaboratively with cross‑functional engineering teams on the program they support.

This role will be worked onsite in Marlborough, MA. Relocation assistance is available. Requires an active and transferrable SECRET clearance.

What You Will Do

• Work with customers and internal stakeholders to define cybersecurity requirement decomposition, allocation, implementation, and verification utilizing system engineering practices; providing guidance and direction related to security technologies.
• Define cybersecurity requirements, design, and architecture artifacts; collaborating with program and engineering disciplines and ensuring cybersecurity solution alternatives.
• Lead system design discussions and provide cybersecurity engineering input.
• Collaborate with systems engineers and developers to integrate cybersecurity considerations into system design.
• Advise in and/or lead cybersecurity focused System Verification and Validation including writing test plans and procedures, performing test conduct, writing and conducting analyses, and providing remediation recommendations.
• Own and generate cybersecurity related documentation (i.e.; Risk Management Framework System Security Plan, Risk Assessment Report, Plan of Actions and Milestones).
• Lead and/or significantly contribute as part of a team, fostering a culture of collaboration and continuous learning.
• Champion awareness of evolving security threats and industry best practices; becoming a Subject Matter Expert (SME) and valued member of our System Security Engineering team.

Qualifications You Must Have

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
• ACTIVE and transferable SECRET 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 security clearances.
• Experience in (system) requirement definition, allocation, and decomposition; preferably with embedded systems.
• Experience in generating Verification Items (VIs) and determining formal verification methods (inspection, analysis, demonstration, and/or test) for allocated requirements.
• Direct experience with requirement management tools (e.g.; DOORS, JIRA, CONFLUENCE); including Model-Based Systems Engineering (MBSE) tools (e.g.; JAMA, CAMEO).

Qualifications We Prefer

• Active and transferable TOP SECRET clearance.
• Familiarity with satellite systems, communication systems, and evolving security technologies; with a strong desire to develop and enhance this knowledge.
• Familiarity with cybersecurity, Risk Management Framework (RMF), and embedded cryptography; with a strong desire to develop and enhance this knowledge.
• Experience in Cybersecurity, Risk Management Framework (RMF), and embedded cryptography.
• Experience with National Security Agency (NSA) cryptographic certification.
• Experience with Program Protection Plan (PPP) and Program Protection Implementation Plan (PPIP) required by DoDI 5000.2 and DoDI 5200.39.
• Cybersecurity-related certifications (e.g., CISSP, Security Plus, etc.).
• Self-starter requiring limited direction and minimal supervision.

What We Offer

• 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
• Ovia 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

Learn More & Apply Now!

Salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels.

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.