Senior Electrical Design Manager – Substations & Transmission (HV/EHV)Voltage Levels: 132 kV / 220 kV / 400 kVSystems: AIS & GIS Substations, EHV Transmission LinesRole OverviewThe Senior Electrical Design Engineer will be responsible for end-to-end primary design engineering, technical evaluation, and cost estimation for HV/EHV substations and transmission line projects. The role involves close coordination with multidisciplinary teams, compliance with international standards, and technical support through bidding, execution, and commissioning stages.Key Responsibilities1. Substation Primary Design EngineeringDevelop and deliver primary plant designs for AIS and GIS substations up to 400 kV, including:Equipment layouts and elevationsBusbar configurationsCable routing and trench layoutsEarthing and grounding systemsPrepare detailed engineering deliverables such as:Single Line Diagrams (SLDs)Layout and elevation drawingsEarthing design and calculationsShort-circuit and electrical stress calculationsClearance, creepage, and phase separation studiesPerform technical calculations and design checks to ensure safety, reliability, and compliance.2. Protection, Control & Secondary Systems InterfaceCoordinate relay and metering design, including:Protection schemes and coordination studiesTrip logic and interlocking philosophySupport design interfaces for:Transformer sizing and specifications (including auto-transformers and reactors)Lightning protection systemsControl, protection, and communication systems (SCADA, PLC, fiber optics)Power and control cable layouts and schedulesPrepare BOQs and technical specifications for major electrical equipment.3. Standards, Safety & ComplianceEnsure all designs comply with:Client and utility requirementsInternational and national standards (IEC, IEEE, BS EN, IS)Apply Safety by Design principles and ensure adherence to HSE requirements throughout all design stages.4. Design Coordination & Stakeholder EngagementCoordinate with civil, structural, protection & control, secondary systems, and transmission line engineering teams.Liaise with clients, consultants, suppliers, and internal stakeholders to resolve technical queries and optimize designs.5. Design Review & Quality AssuranceReview designs prepared by contractors or junior engineers for accuracy, completeness, and compliance.Participate in design reviews, technical audits, and hazard identification workshops, addressing risks and mitigation measures.6. Cost Estimation & Tender EngineeringPrepare detailed cost estimates for:400 kV / 220 kV / 132 kV AIS & GIS substationsEHV transmission line projectsAnalyze tender documents, specifications, drawings, and BOQs.Perform quantity take-offs for:Substation equipment (transformers, GIS/AIS, breakers, CTs, VTs, protection & control systems)Earthing, busbars, power and control cablesElectrical–civil interfaces (foundations, control rooms, cable trenches, roads, drainage)Transmission line works (towers, foundations, conductors, insulators, stringing)Prepare feasibility studies, pre-bid and post-bid cost comparisons.7. Technical & Commercial EvaluationReview technical specifications and identify cost-impacting requirements.Evaluate vendor make lists, technical offers, and alternative solutions for optimization.Ensure compliance with applicable standards and client requirements.8. Vendor & Commercial CoordinationObtain and evaluate quotations from vendors and subcontractors.Conduct rate analysis for materials, labor, equipment, and logistics.Prepare cost summaries, price break-ups, and bid pricing sheets.Support commercial clarifications, negotiations, and bid finalization.9. Risk Management & Cost ControlIdentify risks, exclusions, assumptions, and constraints during tendering.Include contingencies and escalation provisions in estimates.Support management with sensitivity analysis and margin assessments.10. Documentation & ReportingPrepare and maintain:Design records and technical reportsCost estimate and tender documentationClarifications, deviations, and bid submission documentsMaintain version control, traceability, and a cost database for completed and ongoing projects.Support post-award technical handover to execution teams.11. Project & Site SupportProvide technical support during construction, testing, and commissioning as required.Assist in design planning, resource allocation, and scheduling of engineering activities.Required QualificationsBachelor’s degree in Electrical Engineering (Power Systems / High Voltage preferred).Professional certifications (Chartered Engineer, MIET, IEEE) are desirable.ExperienceMinimum 5+ years of experience in HV/EHV substation primary design up to 400 kV.Proven experience in utilities, EPC contractors, or power transmission design consultancies.Skills & CompetenciesProficiency in AutoCAD, MicroStation, and related design tools.Strong analytical, calculation, and problem-solving capabilities.Good communication skills with the ability to work in multidisciplinary teams.High attention to detail and commitment to quality and deadlines.Preferred AttributesExposure to BIM workflows and digital engineering practices.Knowledge of transmission line engineering interfaces.Leadership mindset with the ability to guide and mentor junior engineers.
Job Title
Design Engineer