Senior Systems Security Engineer - P3 (Onsite-TX)

Date Posted:

2026-08-27

 Country:

United States of America

 Location:

US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C 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:

Secret - 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 Senior Systems Security Engineer (SSE) - P3 to join the SSE Sensors, Space, & Air department. The team member will apply their technical knowledge and expertise in the fields of Anti-Tamper and embedded Cybersecurity to ensure secure products are delivered to the end-user. The SSE will be responsible for individual and team leadership contributions to execute program deliverables and milestones, including communications and briefings with internal stakeholders, leadership, and external customers. The candidate will follow the Raytheon Systems Engineering processes to develop, design, integrate, test, and evaluate security solutions within embedded systems. Must be able to work independently and be a motivated self-starter. The individual must possess and maintain an active DoD Secret security clearance and work in classified areas, with up to 25% travel required. This is an onsite position at Raytheon in McKinney, Texas.

What You Will Do

Perform Critical Program Information (CPI) analysis

Perform SSE requirements generation, derivation, decomposition, and analysis

Perform and document SSE trade-studies and provide path forward recommendations

Generate systems engineering modeling and artifacts, including functional block, sequence, and activity diagrams

Develop the program Anti-Tamper Plan

Develop and execute Verification and Validation (V&V) Plans and Procedures

Present in internal and external customer reviews and program milestones

Report tasking status and communications with program and functional leadership

Travel up to 25% as necessary

What You Will Learn

Raytheon Anti-Tamper Learning program

Raytheon Cybersecurity Bootcamp

Qualifications You Must Have

Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 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 with design/development/implementation in at least one of the following areas: Anti-Tamper (HW, SW, Systems), Cybersecurity, Software Assurance

A minimum of 3 years of progressive technical (hands-on) experience related to Systems/Software Engineering architecture, requirements, determination, development, and implementation

Experience in designing, implementing, testing and fielding real-time embedded security-oriented solutions on Department of Defense (DoD) programs with secure systems technologies, methodologies, policies and guidelines

Qualifications We Prefer

Advanced Degree in Electrical Engineering, Systems Engineering, Mechanical Engineering, Engineering Mechanics, Computer Science, Engineering Science, Business Administration and/or Robotics

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

Experience in generating Anti-Tamper, Cyber Security and/or program protection requirements, design and architecture artifacts, plans, and/or policies

Ability to interact with customers to define requirements, solutions, trades, costs, implementation, system impacts, and effectiveness

Software, Firmware, & Microelectronics Engineering, Cryptography and FPGA design

Experience in System Security Engineering, computer technology reverse engineering, AT, cybersecurity or embedded security

Experience designing, implementing, testing, and fielding real-time Embedded security-oriented solutions on Department of Defense (DoD) programs

Experience in generating systems requirements, design and architecture artifacts, plans and/or policies

Knowledge and understanding of the Systems Engineering Lifecycle Process

Experience in design, development and fielding of SSE systems

Software, Firmware, & Microelectronics Engineering, Cryptography and FPGA design

Attack threat modeling / Critical Program Information Assessments

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

Experience in solutions meeting robust SSE systems security requirements

Broad understanding of technology and working knowledge of DODI-S-5230.28

Excellent written and verbal communication skills

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

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

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

Experience with design/development/implementation in at least one of the following areas: Anti-Tamper (HW, SW, Systems), Cybersecurity, Software Assurance

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 essential to the development of our products.

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 86,800 USD - 165,200 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 elig