Principal Tendering Engineer - Electrical Grid SubstationsUK (Hybrid / Office-based / Site visits as required)Permanent - Full TimeSalary Competitive (DOE) and Car Allowance / Car and Flexible Benefits Role Purpose:The Principal Tendering Engineer is responsible for leading the technical and commercial tendering activities for high-voltage (HV/EHV) electrical grid substation projects across the UK. This role ensures accurate, competitive, and compliant bids in line with client requirements, UK grid standards, and company objectives. Key Responsibilities: Tender and Bid Management Lead the end-to-end tendering process for electrical grid substation projects (typically 11kV-400kV).Review ITTs, contract conditions, specifications, drawings, and employer''s requirements.Develop winning bid strategies in collaboration with commercial, planning, and senior management teams.Manage tender programmes to ensure submissions are completed on time and to a high standard. Technical and Engineering Lead the technical assessment of substation designs including: Primary plant (transformers, GIS/AIS, switchgear)Protection and control systemsSCADA, telecoms, and auxiliary systemsCivil and structural interfaces Ensure compliance with UK grid codes, standards, and client specifications (e.g. National Grid, DNOs, ENA, IEC, BS).Identify value engineering opportunities and technical innovations. Commercial and Costing Prepare or review detailed cost estimates, risk allowances, and schedules of r