Senior / Principal Mechanical Design Engineer – Building Services Consultancy

Southampton Area (Hybrid Working) Full-Time Competitive Salary + Bonus + Strong Benefits

About the Role

A respected building services consultancy near Romsey is seeking a Senior to Principal Electrical Design Engineer to join their expert team. With a rich heritage dating back to 2004 and over £450 m in M&E project delivery, the business is trusted for innovative, sustainable, and technically complex solutions across sectors such as healthcare, infrastructure, data centres, historic buildings, laboratories, and industrial facilities

Key Responsibilities

Take ownership of high-value, multidisciplinary M&E projects through all design stages—from feasibility to commissioning Design and oversee complex electrical systems, including power distribution, lighting, fire alarms, data, security, and integrated smart building solutions Lead and mentor electrical engineers; manage review processes to ensure design accuracy and quality Advise on sustainable and low-carbon design strategies, energy modelling, and renewables integration Maintain technical excellence and compliance with BS 7671, CIBSE standards, UK regulations, and project specifications Coordinate closely with civil, structural, mechanical, and environmental specialists to ensure seamless project integration Engage d...