We're looking for a Principal Systems Security Engineer (cyber-physical embedded systems) to join our growing team. In this role, your focus will be on securing a range of Roll-Royce Defense products against an increasingly diverse and complex range of threats. You'll be part of a multi-disciplinary team, working together to tackle technical challenges in a stimulating and collaborative environment. This is an exciting opportunity to work on flagship RR programs and play an important role in addressing some of the most complex and interesting technological challenges in Defense. You will be encouraged to further develop and leverage your skills and experience in Systems Security Engineering and to help grow RR capability in this pivotal area. This position is eligible for a hybrid work schedule allowing for remote and in-office days each week. Hybrid work arrangements are subject to change based on business needs and/or changes in company policy. All hybrid employees must have a secure, high-speed internet connection and an appropriate workspace that complies with applicable information security and confidentiality requirements. Why Rolls-Royce? Rolls-Royce is one of the most enduring and iconic brands in the world and has been at the forefront of innovation for over a century. We design, build and service systems that provide critical power to customers where safety and reliability are paramount. We are proud to be a force for progress, powering, protecting and connecting people everywhere. We want to ensure that the excellence and ingenuity that has shaped our history continues into our future and we need people like you to come and join us on this journey. Rolls-Royce has been recognized as the top employer in the Engineering & Manufacturing category on the prestigious Forbes Top Employers for Engineers list for 2025. This ranking highlights our commitment to innovation, employee development, and fostering a collaborative environment where engineers can thrive. Be part of a team that sets the industry standard and drives groundbreaking solutions. At Rolls-Royce, we are committed to creating a workplace where all employees feel respected, supported, and empowered to do their best work. We foster a welcoming and innovative work environment that invests in you, giving you access to an incredible breadth and depth of opportunities where you can grow your career and make a difference. Rolls-Royce is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to any protected characteristics.