We are looking for an experienced Principal Systems Engineer to support the design, integration, testing, and delivery of complex engineering systems. The role involves working across the full systems lifecycle, from initial concept and requirements through to verification, acceptance, and customer delivery. The successful candidate will work with multidisciplinary teams across software, electronics, and mechanical engineering, supporting system development, risk management, technical documentation, and continuous improvement. Key Responsibilities Lead systems design, integration, verification, and testing activities. Support projects through the full engineering lifecycle. Work closely with software, electrical, and mechanical engineering teams. Manage technical risks and contribute to project delivery. Produce technical reports, specifications, and documentation. Support design reviews and mentor junior engineers. Communicate with internal teams, customers, and suppliers. Key Skills Experience in Systems Engineering, Systems Integration, or Product Development. Background in aerospace, defence, electronics, automotive, or other complex engineering environments. Knowledge of system testing, verification, and engineering processes. Understanding of electronics, communications protocols, or embedded systems is desirable