Senior Information System Security Engineer (ISSE) II – El Segundo, CA

Date Posted:

2026-05-18

Country:

United States of America

Location:

US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01

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: Top Secret

Security Clearance Status:

Active and existing security clearance required on day 1

At RTX, the world 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.

Our cybersecurity team is seeking a Senior Information Systems Security Engineer (ISSE) II to support our team 100% onsite at our facility in El Segundo, California.

The Senior Information System Security Engineer (ISSE) II is an individual contributor responsible for a layered complexity of Classified Information Systems. The ISSE partners with Cybersecurity Operations, Digital Technology and Engineering to align capabilities across multiple information systems. Each day you will directly contribute program and mission success by providing strategic guidance to Information System Security Managers, Mission Area Leads, Cybersecurity Officers, and System Integrators to drive technical standards, establish baselines, identify value streams in processes to reduce waste, reduce technical debt and enhance Raytheon’s engineering and scientific capabilities. Our Cybersecurity Architects must be innovative, humble, problem solvers who can think “inside” of the box by carefully balancing innovation, sustainability, security. This will require methodical judgment, systems thinking, and effective oral/written communication.

What You Will Do

• Conducts briefings, presentations for multiple levels of the business

• Serves as a Subject Matter Expert (SME) for designated tools, ensuring alignment with and support for Raytheon's standard solutions portfolio.

• Develops, implements, and supports technical standards while balancing the needs of the program and mission

• Provide strategic direction with ability to drive technological innovation

• Collaborate with other architecture teams to design and develop secure compliant technical solutions for deployment

• Conducts technical solution evaluation for new technology; conducts gap analysis and risk evaluations of new capabilities

• Provides expert technical advisement in support of Customer discussions, negotiations, approval requests and other tasks as needed

• Ensure efficiencies, cost offsets and savings are captured by the Architecture team to enable competitive advantage

• Provides oversight and leadership of Cybersecurity projects and initiatives of cost-benefit and risk management analysis

• Supports enterprise and business initiatives to drive technological evolution of supported programs

• Supports the Organization’s vision, strategy and goals

• Business travel as needed; up to 10%

Important note: Within six months of hire date, you must obtain and maintain a Security professional certification commensurate with a DoD 8570.01-M IAM level III certified credentials (CISSP, CISM, GSLC or CCISO), if you do not already have this certification.

Qualifications You Must Have

• Typically requires a University Degree or equivalent experience and minimum 8 years prior relevant experience, or an Advanced Degree in a related field and minimum 5 years’ experience.

• Experience in Cyber / Systems Security or Network Architecture / Technology.

• Experience understanding and implementing compliance regulations such as NISPOM, DAAPM, JAFAN, ICD, FAA, HIPAA, and/or other government regulations/requirements.

Qualifications We Prefer

• Experience with change management or architectural governance.

• Ability to tailor technical discussions to various audiences, create security whitepapers and concept of operations.

• Experience with information security COTS applications (i.e. endpoint security, security information and event management, vulnerability management, encryption, antivirus).

• Experience with project management and collaboration tools (i.e. SharePoint, MS Project, JIRA, Azure DevOps).

• Experience with SIEM tools.

• Understanding of enterprise architectural framework methodologies (i.e. TOGAF, DoDAF)

• Familiarity with containerization and related technologies (i. e. Kubernetes, Rancher, Docker).

• Experience with virtualization (i.e. VMWare, Nutanix).

• Familiarity with cloud architecture, service categories and deployment models.

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 Non-Eligible – Relocation assistance not available

Learn More & Apply Now!

Please consider the following role type definition as you apply for this role:

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

We are RTX

#LI-Onsite

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 118,300 USD - 224,900 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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