Senior / Principal Electrical Design Engineer – Building Services\n Location: Southampton | Salary: DOE + Performance Bonus\n Benefits: 25 days holiday + bank holidays | Pension | Private medical cover | Flexible & hybrid working\n\nLead, Mentor, and Deliver Exceptional Electrical Design\nAn established building services consultancy in Southampton is seeking a Senior / Principal Electrical Design Engineer to join their growing MEP team. The firm delivers high-quality, sustainable building services solutions across education, healthcare, residential, commercial, and specialist technical facilities.\n This is an exciting opportunity to take technical ownership, lead projects, mentor junior engineers, and influence client engagement and strategic growth. Sustainability, innovation, and collaboration sit at the heart of the business.\n\nWhat You’ll Be Doing\n\nLead the design and delivery of electrical systems from concept to completion\nDevelop and review technical designs, calculations, specifications, and reports\nProduce drawings and 3D models using Revit, AutoCAD, and other design tools\nMentor junior engineers and support their progression toward Chartership\nManage project performance, including quality, budget, and programme\nLead client meetings, site visits, and design coordination sessions\nDrive energy-efficient, low-carbon, and renewable electrical solutions\nSupport business development through repeat client engagement and technical leadership\n\nWhat You’ll Bring\n\nDegree in Electrical or Building Services Engineering (BEng, MEng, or equivalent)\n6+ years’ consultancy experience in building services\nChartered or working toward Chartership with a recognised institution (IET, CIBSE)\nStrong technical knowledge of power, lighting, containment, and energy-efficient systems\nProficiency with Amtech, Dialux, Relux, AutoCAD, Revit, or similar tools\nConfident client-facing and leadership skills\nSolid understanding of UK regulations and standards (BS7671, CIBSE, Part L)\nFull UK driving licence\n\nWhy Join?\n\nLeadership role with autonomy and visibility, clear route to further progression\nWork on a diverse, sustainable, and technically challenging project portfolio\nFlexible and hybrid working to support work-life balance\nCollaborative team culture focused on technical excellence and innovation\nCompetitive package with long-term growth opportunities\nIf you’re a Senior / Principal Electrical Design Engineer ready to lead, mentor, and make a real impact on sustainable building services projects in Southampton, apply now or get in touch for a confidential conversation