Senior Systems Security Engineer - P3 (Onsite)

Date Posted:

2026-02-19

Country:

United States of America

Location:

US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675

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 Raytheon, the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.

Raytheon is seeking a well-qualified Senior Systems Security Engineer (Cybersecurity) - P3 to join our elite Systems Security Engineering (SSE) team for the Systems Directorate 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 Fullerton, CA.

What You Will Do

• Support implementation of SSE solutions into RTX products

• Support the development of Risk Management Framework (RMF) documents for Authority to Operate (ATO) accreditation

• Perform analysis on cybersecurity collected data and test results

• Validate secure configuration of routers, switches, firewalls, servers, operating systems, applications, and other assets, using DoD approved scanning and assessment tools such as Nessus, STIG, Evaluate STIG, and/or RADIX

• Create and maintain Linux Bash and Python scripts

• Create patch artifacts such as patch media and information assurance posture reports

Qualifications You Must Have

• Typically requires a Bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and 5 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 System Security Engineering, computer technology reverse engineering, cybersecurity or embedded security

Qualifications We Prefer

• Experience contributing to a team environment for the purpose of developing creative solutions to technical problems

• Experience in solutions meeting robust SSE systems security requirements

• Experience in the implementation and business growth of SSE implementation throughout the entire life cycle

• Experience in implementing STIG controls

• Experience with Linux Bash scripting or Python scripting

• Cyber Certifications in accordance with DoDD 8570/DoDD 8140 such as CISSP, GSLC, CEH

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

• Excellent interpersonal skills with the ability to interact positively with coworkers, suppliers, stakeholders, and customers in a team environment

• Candidate must exhibit an exceptional degree of ingenuity, creativity, and resourcefulness

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 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 c