System Integration Engineer (System Engineer - Effector Development)

The Destinus engineering team is seeking a Systems Engineer to lead the system-level definition and technical development of our effector programmes. This role sits at the centre of the development effort – bridging operational requirements and technical execution across propulsion, structures, avionics, and seeker. The ideal candidate brings a defence systems background and understands the full development lifecycle of a guided effector – from ConOps and requirements through subsystem design, integration, and qualification. They are technically credible across multiple domains, rigorous in their systems thinking, and effective at driving alignment across disciplinary teams. What You’ll Do · Define and own system-level requirements for effector programmes – capturing operational needs, translating them into technical requirements, and maintaining traceability from ConOps through to subsystem specifications · Develop and maintain ConOps and operational scenario definitions; work with the customer and programme stakeholders to ensure operational intent is correctly reflected in the system design · Define and manage technical interfaces between subsystems (propulsion, warhead/pyrotechnics, structures, avionics, guidance, and GSE); own the ICD and IRS documentation · Lead trade studies and make-or-buy analyses to identify the best technical and commercial solutions at system and subsystem level · Identify and track critical components and subsystems; define mitigation strategies