We are seeking an experienced Senior Primary Design Engineer to lead and deliver high-quality primary engineering designs for HV substations and power infrastructure projects. Working for the specialist power engineering arm of a FTSE 250 company, you will play a key role in technical delivery, mentoring junior engineers, and working closely with project managers, clients, and multidisciplinary teams. This role is available on a hybrid or remote basis, offering flexibility while remaining closely connected to project teams and clients. Key Responsibilities: * Lead the design and development of primary engineering solutions for HV substations and associated infrastructure * Produce and review primary design deliverables including layouts, GA drawings, equipment specifications, and technical reports * Ensure designs comply with relevant standards, client specifications, and safety requirements * Provide technical guidance, checking, and mentoring to junior engineers * Interface with clients, contractors, and internal stakeholders throughout the project lifecycle * Support project planning, cost estimates, and risk assessment * Contribute to continuous improvement of design processes and standards About You: * Degree-qualified in Electrical Engineering or a related dis...