Principal Electrical Design Engineer Location: Hertford, Hertfordshire (office-based with hybrid after probation) Salary: upto £75,000 depending on experience Type: Permanent, full-time The Opportunity Our client is an established, multidisciplinary building services consultancy based in Hertfordshire. Founded over two decades ago, they have built a strong reputation as M&E Consulting Engineers and Low Carbon Consultants, delivering technically excellent design solutions for architects, contractors, and end clients across commercial offices, education, healthcare, data centers, and historic buildings. This is a senior-level hire into a tight, growing team that values technical depth, collaborative problem-solving, and proper engineering discipline. They are looking for an electrical engineer who is genuinely strong on full design, not just concept work, and who knows their RIBA stages inside out. Key Responsibilities Lead the electrical design on live projects across RIBA Stages 1 to 4, from inception through to detail design Take ownership of full design responsibility, producing detailed technical drawings, specifications, schedules, and calculations Develop low-carbon and energy-efficient electrical strategies aligned with current Building Regulations, CIBSE guidance, and British Standards Liaise directly with clients, architects, contractors, and the wider design team on technical and commercial matters Attend design team meetings, present design proposals, and represent the consultancy externally Mentor and technically support junior and intermediate engineers within the team Contribute to fee proposals, project programming, and resource planning Carry out site inspections, condition surveys, and commissioning support as required Uphold the consultancys reputation for technical excellence and sustainability-led design About You Proven experience as an Electrical Design Engineer within a UK building services consultancy environment Strong, demonstrable understanding of RIBA Stages 1 to 4, with particular depth in detail design (Stage 4) Confident producing fully coordinated electrical designs including LV distribution, small power, lighting, fire alarm, containment, and life safety systems Comfortable with industry-standard design software (Amtech, Dialux, AutoCAD, Revit) Excellent communicator, comfortable client-facing and able to present design rationale clearly Commercially aware, with an understanding of fee management and project delivery Chartered or working towards chartership (IEng, CEng, MIET, MCIBSE) is desirable Knowledge of low-carbon design principles and renewable technologies is highly advantageous UK right to work Local to Hertfordshire or within a sensible commute You will thrive in this role if you want technical ownership, visibility on your work, and the chance to grow within a team that genuinely cares about engineering quality and sustainability. Package upto £75,000 basic salary depending on level and experience Hybrid working available after successful completion of probation Pension and benefits package Genuine career progression within a growing consultancy Active CPD culture and support towards chartership