Senior Information System Security Engineer (ISSE) – Marlborough, MA

Date Posted:

2026-04-15

Country:

United States of America

Location:

US-MA-MARLBOROUGH-MA4 ~ 1001 Boston Post Rd ~ BLDG 4

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:

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) to support our team 100% onsite at our facility in Marlborough, Massachusetts.

The Senior Information System Security Engineer (ISSE) 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 5 years prior relevant experience, or an Advanced Degree in a related field and minimum 3 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 secu