Our client is seeking a highly experienced Principles Signalling Designer/Verifier to join their rail team. This is a senior position offering technical authority and leadership across a wide range of signalling projects within the UK rail sector. The successful candidate will play a key role in delivering safe, efficient, and compliant signalling designs, while mentoring teams and ensuring the highest standards are met across all stages of project delivery. Key Responsibilities: * Lead and oversee signalling design activities across multiple projects. * Ensure design outputs meet all relevant standards, programme milestones, and client requirements. * Manage internal teams, subcontractors, and agency resources to deliver on time and within budget. * Undertake and check signalling designs in line with your IRSE licence and authority to work. * Provide technical authority, guidance, and mentorship to design staff. * Support project planning, risk assessment, change management, and client approvals. * Liaise with internal and external stakeholders to ensure clear communication and project alignment. * Support bids and tendering processes by providing design input and technical advice. Requirements: * Extensive signalling design experience with strong knowledge of signalling principles and standards. * IRSE Principl...