Embedded Systems Security Engineer II (Onsite - Marlborough, MA) Secret cleararance required

globalhr; Marlborough (MA); On-site; USD 69,000 - 131,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) plan with matching

Tuition reimbursement

Student Loan Repayment

Job summary

RTX Collins Aerospace in Marlborough, MA, is seeking an Embedded System Security Engineer II to support DoD and international defense programs. You will analyze architectures, decompose requirements, and design security features while coordinating with cross-functional teams.

The role requires an active SECRET clearance and U.S. citizenship, with onsite work and opportunities to contribute to certification activities across multiple contracts.

Qualifications

• Typically requires STEM degree and 2+ years of relevant experience or an advanced degree.
• U.S. citizenship is required for security clearance eligibility.
• Active SECRET clearance is required prior to start date.
• Experience in cybersecurity for embedded/defense or mission-critical systems.
• Experience with RMF, security assessments, or system authorization.
• Ability to document security requirements, assessments, and test artifacts.
• Experience supporting system or software verification and validation activities.

Responsibilities

• Support RMF ATO activities and NSA Type 1 cryptographic certifications with evidence and artifacts.
• Decompose security requirements and allocate them to system components.
• Analyze requirements, models, interfaces to identify vulnerabilities and map to security requirements.
• Document inputs from design reviews and provide security engineering recommendations.
• Collaborate with systems, software, and hardware teams to integrate security requirements.
• Develop test plans and procedures for cybersecurity verification and validation.
• Participate in cybersecurity reviews and provide status and technical inputs.

Skills

Security engineering

Systems thinking

RMF experience

Requirements analysis

Technical documentation

Test & verification

Cross-functional collaboration

Education

Bachelor's degree in STEM

Advanced degree preferred

Tools

DOORS

JIRA

Confluence

Cameo MBSE

Job description

Date Posted:

2026-08-24

Country:

United States of America

Location:

US-MA-MARLBOROUGH-MA1 ~ 1001 Boston Post Rd ~ BLDG 1

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

Raytheon Company, Managed by Collins Aerospace

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world‑class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.

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 Florida team is hiring a Embedded System Security Engineer II to support programs for our US military and various international customers, keeping the world safe from foreign threats. This team supports multiple Collins contracts and is seeking to fill roles across several open contracts – 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 have experience 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. and will require an active SECRET clearance. Relocation assistance is not available.

What You Will Do:

• Support system certification and authorization activities, including RMF Authorization to Operate (ATO) and NSA Type 1 Cryptographic Certification, by preparing assigned documentation, evidence, and assessment artifacts

• Support cybersecurity requirement decomposition, allocation, implementation, and verification for assigned system components using systems engineering practices

• Analyze system requirements, models, interfaces, and diagrams to identify and document potential security vulnerabilities and trace findings to applicable security requirements

• Participate in system design reviews and document security engineering inputs, findings, and recommendations for assigned system elements

• Work with systems engineers and software/hardware developers to incorporate assigned security requirements into system designs and track identified issues through resolution

• Support security‑focused System Verification and Validation (SV&V) activities by developing test cases, test plans, and procedures; participating in test conduct; documenting results; and supporting remediation analysis

• Participate in cybersecurity engineering reviews and working groups and provide status, findings, and technical inputs for assigned activities

• Review applicable security threats, vulnerabilities, and industry guidance and identify impacts to assigned system components

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field

• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

• Active and transferable SECRET U.S. government issued security clearance is required prior to start date

• Experience supporting cybersecurity or product security activities for embedded, aerospace, defense, or other mission‑critical systems

• Experience supporting Risk Management Framework (RMF) activities, security assessments, or system authorization activities

• Experience analyzing system requirements, models, diagrams, or architectures to identify security requirements or risks

• Experience developing technical documentation, including security requirements, assessments, test documentation, or certification artifacts

• Experience supporting system or software verification and validation activities, including development or execution of test procedures and documentation of test results

Qualifications We Prefer:

• Active and transferable TOP SECRET clearance

• Experience with NSA cryptographic certification, Cross Domain Solution (CDS) requirements, or NIAP

• Familiarity with DOORS, JIRA, Confluence, Cameo (MBSE), or other systems modeling and agile tools

• Security‑related certifications (e.g., Security+, CISSP) and/or an Electrical or Computer Engineering degree

• Experience with security protocols used in embedded systems and communications for aerospace environments

• Familiarity with DoD‑focused security assessment tools such as SCC, NMAP, Evaluate‑STIG, Nessus, ACAS, Vulnerator, eMASS, etc

• Willingness to learn about satellite systems, communication systems, and evolving security technologies

• Demonstrated collaboration, effective communication, customer focus, and ability to drive results

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 illnessinsurance, 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!

The salary range for this role is 68,900 USD - 131,100 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.

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.

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.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.