Senior Systems Security Engineer - P3 (Onsite-Woburn, MA)

RTX; Woburn (MA); On-site; USD 96,000 - 182,000; Full time

Benefits offered by this job

Relocation assistance

Job summary

RTX in Woburn, MA seeks a Senior Systems Security Engineer to join the SSE team onsite. Responsibilities include defining SSE requirements with customers, designing and integrating cybersecurity capabilities for National Security Systems, and ensuring RMF compliance.

The role emphasizes collaboration with program management and leadership, demanding DoD-security experience. The position requires a STEM degree with 5+ years in security engineering, and the ability to obtain a U.S.

Qualifications

• Typically requires a Bachelor’s Degree in Science, Technology, Engineering or Mathematics (STEM) and 5 years of prior relevant experience.
• The ability to obtain and maintain a U.S. government issued security clearance is required.
• Experience in System Security Engineering and/or Cybersecurity Engineering and/or System Administration or IT/Network Administration.
• Experience with NIST Risk Management Framework (RMF).

Responsibilities

• Interact with the customer to define SSE requirements, architecture, solutions, trade studies and vendor product analysis, costs, implementation, system impacts, and effectiveness.
• Develop, design, integrate, test, and maintain various cybersecurity capabilities for National Security Systems.
• Ensure compliance with NIST RMF controls.
• Develop top-level system requirements and flow down requirements to subsystems.
• Develop plans and estimates, task execution, project tracking, and risk mitigation plans.
• Consult and assist program management with SSE architecture and issues and deliver technical briefings to leadership.
• Define security development and test efforts and implementation of security controls of networking devices, databases, operating systems, and hardware/software components.
• Integrate cybersecurity development activities and support test and integration activities.
• Support the development of bids and proposals.

Skills

System Security Engineering

Cybersecurity Engineering

RMF/NIST

Scripting (Python/Bash)

Linux/Windows Admin

Virtualization

DoD/Defense Domain

Education

Bachelor’s degree in STEM

Tools

Nessus

Splunk

QRadar

Elasticsearch

SIEM

VMware/OpenShift

Job description

Date Posted: 2026-10-23 Country: United States of America Location: US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD 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: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

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 Senior Systems Security Engineer (P3) 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 Cybersecurity, Software Assurance, and Program Protection Implementation on National Security 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 Woburn, MA.

What You Will Do

• Interact with the customer to define SSE requirements, architecture, solutions, trade studies and vendor product analysis, costs, implementation, system impacts, and effectiveness
• Develop, design, integrate, test, and maintain various cybersecurity capabilities for National Security Systems
• Ensure compliance with National Institute of Standards and Technology (NIST) Risk Management Framework (RMF) controls
• Develop top-level system requirements and flow down requirements and implementation concepts to subsystem
• Develop plans and estimates, task execution, project tracking, reporting, and risk identification and mitigation plans
• Consult and assist program management with SSE architecture and issues and deliver technical briefings to leadership
• Define security development and test efforts implementation of security controls of networking devices, databases, operating systems, and hardware and software components and provide all associated technical documentation
• Integrate cybersecurity development activities and support test and integration activities
• Support the development of bids and proposals

Qualifications You Must Have

• Typically requires a Bachelor’s Degree in Science, Technology, Engineering or Mathematics (STEM) and 5 years of prior relevant experience
• The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Experience in System Security Engineering and/or Cybersecurity Engineering and/or System Administration or IT/Network Administration
• Experience with NIST Risk Management Framework (RMF)

Qualifications We Prefer

• Active and transferable U.S. government issued Secret security clearance
• Managerial or leadership experience
• Technical hands-on experience with cybersecurity tools and products including anti-virus, host-based or endpoint security solutions including HIDS/HIPS, Multi-Factor Authentication (MFA), and Security Incident and Event Management (SIEM) and centralized auditing tools (e.g.,Splunk, IBM QRadar, Elasticsearch)
• Linux Bash scripting or Python scripting experience. Comfort using command line in Linux/Unix and experience with automation/orchestration tools such as Ansible
• Security systems engineering involving various computer hardware and software operating systems and application solutions in both a stand-al, airgapped environment and in LAN/WAN configurations
• Experience with virtualization and containerization technologies, and comfortable with building and securely configuring virtual machines images
• Experience with hypervisors such as VMWare, OpenShift, V-Sphere
• DoDI 8570.01-M IAT Level-II Compliant Certification (e.g. Security+, CISSP, CEH, or equivalent)
• Security features and/or vulnerability analysis of various operating systems as defined by DoD or Intelligence agencies
• Experience researching vulnerabilities and/or cybersecurity threats
• Experience with Tenable Nessus vulnerability scanning tool suite
• Experience with IT and/or network and system security administration, including operating system security configuration, hardening/patching operating systems, and account management best practices for UNIX, Microsoft Windows/Server, Red Hat Enterprise Linux
• Experience with DISA Security Technical Implementation Guide (STIG) hardening of operating systems a plus
• Experience with IT/network administration, securely configuring networking devices (switches, routers, firewalls) and software-defined networking or storage devices
• Experience with DISA Security Technical Implementation Guide (STIG) hardening of operating systems a plus
• Understanding of Systems Engineering requirements, specifications, and experience implementing DoD and Authorization and Accreditation Processes, RMF controls and developing and maintaining associated certification and accreditation documentation to maintain Authority to Operate (ATO)
• Familiar with Program Protection Plan (PPP) required by DoDI 5000.02 and DoDI 5200.39
• Understanding of maintaining compliance with DoD technology release and export licensing policies
• General understanding of secure architectures, the Systems Engineering development lifecycle, and an understanding Agile software development methodologies and principles
• Experience with technical documentation and technical writing
• Prior experience working within the defense industry on classified U.S. Government information systems a plus

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

Salary range for this role is 95,500 USD - 181,700 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.

Benefits:

• 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
• 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.

Privacy Policy and Terms:

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.