We are looking for a highly experienced and enthusiastic Senior Systems Engineer to take a pivotal leadership role as Systems Design Authority on a major defence project. In this position, you will drive the delivery of a complex, multidisciplinary system comprising advanced sensors, electronics, and signal processing firmware/software to key customers. As the most senior engineer on the project, you will guide a cross-functional engineering team through the entire development lifecycle from concept to customer acceptance. You''ll also provide strong technical governance, mentor junior engineers, and support the Project Manager in communicating with internal and external stakeholders. This role will be instrumental in identifying and supporting future system enhancements and technology roadmaps. Key Responsibilities Act as Systems Design Authority, supporting the Project Manager on all technical matters and serving as the project s technical lead. Oversee system design, development, integration, and testing to ensure all customer and regulatory requirements are met. Develop and review technical documentation, including design specifications, test plans, and qualification procedures. Coordinate and supervise integration, validation, and qualification activities including those at external test facilities. Provide technical leadership to software, firmware, and hardware teams, ensuring alignment with system-level performance requirements. Chair and participate in design ..... full job details .....