Principal System Security Engineer (Cybersecurity) - P4 (Onsite-Tewksbury, MA)

RTX Corporation; Tewksbury (MA); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

Disability insurance

401(k) match

Flexible spending accounts

Flexible work schedules

Employee Scholar Program

Parental leave

Paid time off

Holidays

Job summary

RTX Corporation in TEWKSBURY, MA is seeking a Principal System Security Engineer (Cybersecurity) -P4 to join our elite Systems Security Engineering (SSE) team onsite. You will tackle cyber security across embedded weapons systems, defense programs, and DoD policy compliance.

The role requires a STEM degree, 8 years of relevant experience, and an active Secret clearance. You will lead architecture, risk management, and security testing efforts while coordinating with customers and suppliers to

Qualifications

• Bachelor’s degree in STEM and 8 years of relevant experience.
• Active and transferable U.S. Secret security clearance required.
• Experience in System Security Engineering, reverse engineering, cyber security, or embedded security.
• Experience with NIST RMF and technical leadership.

Responsibilities

• Coordinate cybersecurity activities across engineering teams and interface with customers and stakeholders.
• Develop plans, estimates, execution, tracking, reporting, and risk mitigation.
• Ensure compliance with NIST RMF controls.
• Support SSE architecture and issue resolution with program management.
• Assist in bids and proposals.
• Define security development and test efforts for devices and systems.
• Integrate cybersecurity development activities across disciplines.
• Develop system requirements and flow down to subsystems.
• Understand and comply with DoD release and export licensing policies.

Skills

Cybersecurity coordination

SSE leadership

RMF proficiency

DoD policy knowledge

Embedded security

Technical interface with customers

Education

Bachelor's Degree in STEM

Tools

RMF tooling

Job description

Location

US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG

Date Posted

2026-10-19

Country

United States of America

Location

US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG

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

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.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

Raytheon is seeking a well-qualified Principal System Security Engineer (Cybersecurity) -P4 to join our elite Systems Security Engineering (SSE) team in developing solutions to protect the Warfighter’s technology advantage. Systems Security Engineering creates holistic security solutions leveraging Cyber Security, Software Assurance and Supply Chain Risk Management to support Program Protection Implementation on embedded weapons systems. Join our highly visible team and perform technically challenging assignments, which will directly contribute to protecting our nation and our Warfighters. This is an onsite position at Raytheon in Tewksbury, MA.

What You Will Do

• Coordinate cybersecurity activities across multidisciplinary engineering teams and serve as a technical interface for cybersecurity matters with customers, program leadership, subcontractors, and other stakeholders.
• Develop plans and estimates, task execution, project tracking, reporting, and risk identification and mitigation plans
• Ensure compliance with National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) controls
• Consult and assist program management with SSE architecture and issues
• Support the development of bids and proposals
• Define security development and test efforts implementation of security controls of networking devices, databases, operating systems, and hardware and software component
• Integrate cybersecurity development activities
• Develop top-level system requirements and flow down requirements and implementation concepts to subsystem
• Understanding, and compliance with, DoD technology release and export licensing policies

Qualifications You Must Have

• Typically requires a Bachelor’s Degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years of prior relevant experience
• Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Experience in the field of System Security Engineering, computer technology reverse engineering, anti-tamper, cybersecurity, or embedded security
• Experience with NIST Risk Management Framework (RMF)
• Experience in technical leadership

Qualifications We Prefer

• Implementation and business growth of SSE implementation throughout the entire life cycle
• Experience in solutions meeting robust SSE systems security requirements
• Cyber Certifications in accordance with DoDD 8570/DoDD 8140 such as CISSP, GSLC, CEH
• Subcontractor management experience with SSE
• Broad understanding of technology and working knowledge of DODI-S-5230.28
• Strategic planning and experience with U.S. Government contract proposals as an Information Assurance Engineer subject matter expert
• Candidate must exhibit an exceptional degree of ingenuity, creativity, and resourcefulness
• Excellent interpersonal skills with the ability to interact positively with coworkers, suppliers, stakeholders, and customers in a team environment
• Experience contributing to a team environment for the purpose of developing creative solutions to technical problems Processes, IA controls and developing and maintaining associated certification and accreditation documentation

What We Offer

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation
• Relocation Eligible – Relocation assistance is available

Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as: 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 attend select 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.

The 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 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.

• 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
• 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.