Principal System Security (Cybersecurity) Engineer - P4 (Onsite-RI)

Date Posted:

2026-09-08



Country:

United States of America



Location:

US-RI-PORTSMOUTH-PS1 ~ 1847 W Main Rd ~ NIMITZ 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 is seeking a well-qualified Principal System Security (Cybersecurity) Engineer - 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 Portsmouth, RI.

What You Will Do

• Interact with the customer to define SSE requirements, solutions, trades, costs, implementation, system impacts, and effectiveness

• 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

• Provide technical leadership and direction for System Security Engineering and cybersecurity activities across the program lifecycle

• Evaluate system architecture, hardware, software, interfaces, and proposed design changes for cybersecurity impacts and recommend appropriate security requirements and risk mitigations

• Coordinate cybersecurity activities across multidisciplinary engineering teams and serve as a technical interface for cybersecurity matters with customers, program leadership, subcontractors, and other stakeholders

• Identify, communicate, and manage cybersecurity technical risks, issues, dependencies, and opportunities throughout program execution

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 applying cybersecurity and System Security Engineering principles throughout the system development lifecycle

• Experience implementing the Risk Management Framework (RMF), including security control selection, tailoring, implementation, assessment, and authorization activities

• Experience developing, reviewing, and maintaining RMF and cybersecurity engineering artifacts, including security plans, control implementation documentation, assessment evidence, and Plans of Action and Milestones (POA&Ms)

• Experience interpreting and applying DoD cybersecurity requirements, including NIST SP 800-53, DISA Security Technical Implementation Guides (STIGs), and applicable DoD cybersecurity policies and guidance

• Experience performing vulnerability assessment, security compliance, and risk analysis activities for complex systems

• Experience translating cybersecurity requirements into system-level and derived technical requirements and supporting requirements decomposition and flowdown

• Experience collaborating with multidisciplinary engineering teams, program leadership, customers, and other stakeholders to resolve cybersecurity and system security engineering issues

• Experience providing technical leadership, guidance, and mentorship to engineering personnel

Qualifications We Prefer

• Ability to communicate complex cybersecurity risks, requirements, and technical recommendations to both technical and non-technical stakeholders

• Managerial or leadership experience

• Usage of information security toolsets including anti-virus, Vulnerability Assessment, HIDS/ NIDS. host-based or endpoint security solutions, Multi-Factor Authentication (MFA), and Security Incident and Event Management (SIEM) and centralized auditing tools familiarity with splunk is preferred

• Linux Bash scripting or Python scripting experience

• Security systems engineering involving various computer hardware and software S/W operating system and application solutions in both a stand-alone and in LAN/WAN configurations

• DoDM 8140.03 Cyberspace Workforce Qualification and Management Program Compliant Certification (e.g. Security+, CISSP, or equivalent)

• Security features and/or vulnerability analysis of various operating systems as defined by Intelligence agencies

• Experience with IT and/or network and system security administration, including operating system security configuration and account management best practices for UNIX, MS Windows, Red Hat Enterprise Linux, and CISCO systems

• Understanding of Systems Engineering requirements, specifications, and Experience implementing DoD and Federal IA Certification and Accreditation Processes, IA controls and developing and maintaining associated certification and accreditation documentation

• Familiar with Program Protection Plan (PPP) required by DoDI 5000.02 and DoDI 5200.39

• Experience working on U.S. Government contract proposals as an Information Assurance Engineer subject matter expert

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.

What We Offer 

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

• Relocation Eligible – Relocation assistance is available

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. 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.

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