Senior Requirements Engineer – Defence Location – Hampshire, Surrey, Gloucester or Devon Salary – Up to £62,000 Security / Eligibility - To be considered for this role, you must be a sole British citizen and able to obtain Security Clearance (SC). Copello are looking for a talented Senior Requirements Engineer to support a high-profile defence programme. This role will see you at the centre of critical projects, ensuring requirements are effectively defined, managed, and delivered across complex systems. Key Responsibilities: * Manage and maintain safety requirements through DOORS * Break down and control requirements following detailed safety analysis * Provide accurate reports and updates to senior engineering leadership on the safety requirements process * Collaborate with subsystem teams, suppliers, and safety specialists to resolve issues and maintain compliance * Support the completion of gap analyses between formal requirements and assumptions placed on suppliers Skills & Experience: * Strong hands-on experience with DOORS or similar requirements management tools * Solid background in systems engineering across the V-model * Degree-level qualification in engineering or equivalent industry experience * Previous involvement in defence or other highly regulated/safety-critical sectors * Confident communicator with excellent stakeholder management skills