Principal Sustainability Consultant London (Hybrid) A leading Engineering Consultancy are looking for a Principal Sustainability Consultant to join their growing London team. You ll be supporting the Head of Sustainability, leading on technical project delivery, and helping clients drive measurable improvements in carbon reduction, resilience, and overall sustainability performance. The role combines hands-on consultancy with business development and offers the opportunity to work across a range of infrastructure and development projects. What you ll need: Strong background in sustainability consultancy, ideally across infrastructure or development sectors Experience with LCA, WLCA and Circular Economy Assessments net-zero strategies, and sustainability reporting Confident in client-facing roles and comfortable managing multiple projects Experience in BREEAM Degree in a relevant field (Sustainability, Environmental Science, etc.); chartership desirable 6+ years experience What s on offer: Competitive salary + benefits Flexible hybrid working (London office) Excellent career development opportunities within a respected consultancy If you d like to know more, reach out to Ethan Williams at Mattinson Partnership on for a confidential chat or click apply.