Principal System Security Engineer (SSE) - P4 (Onsite-Richardson, TX)

RTX (Raytheon); Richardson (TX); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Relocation assistance

Job summary

RTX is seeking a Principal System Security Engineer (SSE) at P4 level to join the Cyber Security Engineering team in Richardson, TX. The role focuses on system security engineering, RMF assessments, and the implementation of secure solutions for a high-profile program onsite.

You will maintain security subsystems, support risk management, and work with COTS/FOSS tech across Windows and Linux environments, ensuring confidentiality, integrity, and availability of IT systems.

Qualifications

• Bachelor's Degree in Science, Technology, Engineering or Mathematics (STEM) and 8 years of prior relevant experience.
• Active and transferable U.S. government issued Top Secret Security SCI clearance and the ability to obtain Special Access Clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Experience with designing, implementing, testing and fielding real-time security-oriented solutions on Department of Defense (DoD) programs
• Experience in developing system requirements and flow down requirements and implementation concepts to subsystems
• Department of Defense Directive (DoDD) 8140 / 8570 Certification, CompTIA Security+ Certification or equivalent requirements (CompTIA Security+ CE or equivalent certification)
• Experience with the following technologies: Active Directory, WSUS, VMware, and prior systems administration and networking administration experience, Windows / Linux administration, backup, and recovery enterprise suites

Responsibilities

• As an SSE ensure the confidentiality, integrity and availability of IT systems and applications
• Optimizing Windows based server infrastructure in a distributed information system
• Providing guidance in support of administrative tasking, to include corrective/preventive maintenance, recurring operations functions, account management, and system optimization
• Coordinating technical and process document reviews and resolving system administration, engineering, and security integration issues
• Participating in technical meetings with team members and other program personnel
• Participating in the development and implementation of systems security solutions
• Performing hands-on technical implementation of security solutions comprised of COTS & FOSS technology

Skills

Analytical abilities

Critical thinking

Creative problem solving

Technical documentation

Written and verbal communication

Education

Bachelor's Degree in STEM

Tools

Active Directory

WSUS

VMware

Windows administration

Linux administration

Backup and recovery

Job description

Date Posted: 2026-10-30

Country: United States of America

Location: US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17

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: TS/SCI - 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 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 Principal System Security Engineer (SSE) - P4 to join the Cyber Security Engineering team for a dynamic, high-profile program located in Richardson, TX. This position is in a technical growth area and we need individuals who can apply their technical knowledge and experience to system security engineering and program protection concerns within the key areas of cybersecurity. This role includes the operations and maintenance of classified information system. The SSE will participate in the development of security solutions and will be responsible for executing solutions for a secure system product. Activities will consist of maintaining security subsystem specifications, adherence to security subsystem architecture, participating in Risk Management Framework assessments, authorizations and continuous monitoring. This is an onsite position at Raytheon in Richardson, TX.

What You Will Do

• As an SSE ensure the confidentiality, integrity and availability of IT systems and applications
• Optimizing Windows based server infrastructure in a distributed information system
• Providing guidance in support of administrative tasking, to include corrective/preventive maintenance, recurring operations functions, account management, and system optimization
• Coordinating technical and process document reviews and resolving system administration, engineering, and security integration issues
• Participating in technical meetings with team members and other program personnel
• Participating in the development and implementation of systems security solutions
• Performing hands-on technical implementation of security solutions comprised of COTS & FOSS technology

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 Top Secret Security SCI clearance and the ability to obtain Special Access Clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Experience with designing, implementing, testing and fielding real-time security-oriented solutions on Department of Defense (DoD) programs
• Experience in developing system requirements and flow down requirements and implementation concepts to subsystems
• Department of Defense Directive (DoDD) 8140 / 8570 Certification, CompTIA Security+ Certification or equivalent requirements (CompTIA Security+ CE or equivalent certification)
• Experience with the following technologies: Active Directory, WSUS, VMware, and prior systems administration and networking administration experience, Windows / Linux administration, backup, and recovery enterprise suites

Qualifications We Prefer

• Excellent analytical abilities, critical thinking and creative problem solving
• Experience writing technical documentation
• Excellent written and verbal communication skills
• Direct working experience with NISPOM,JSIG,DFARS and/or DoD/RMF
• Industry certifications include but are not limited to: CISSP, ITIL, Security+

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

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 es