Senior Energy & Sustainability Engineer Sustainability - London (Hybrid) £30,000-£40,000 We are proud to be representing a progressive, quality-driven consulting engineering firm who are recognised as an industry leader in sustainable, low-energy building design. About the Role The company is seeking an experienced Senior Energy & Sustainability Engineer to lead and deliver best-in-class sustainability solutions across projects of all sizes. This is a senior position suited to an engineer who enjoys leading change, mentoring others and working collaboratively across disciplines. You will take ownership of energy and sustainability design, client liaison and quality control, while supporting business growth and the development of junior engineers. Key Responsibilities Lead and manage energy and sustainability engineering on multiple projects Deliver dynamic thermal modelling using IESVE (Part L, TM52/TM59, daylighting, natural ventilation) Undertake and oversee BREEAM, SAP and EPC assessments Prepare high-quality energy strategies, sustainability statements and planning documentation Coordinate multidisciplinary teams and manage project performance and costs Support bids, proposals and client presentations Mentor and develop less experienced engineers(Experience with PHPP, whole life carbon, thermal bridging and circular economy principles is advantageous but not essential.) About You Degree qualified in Building Services / Sustainability / Mechanical / Electrical Engineering Minimum 3 years' experience in energy and sustainability engineering (consultancy preferred) Strong knowledge of UK Building Regulations (Part L/F, SAP, SBEM, thermal comfort) Qualified Domestic and/or Non-Domestic EPC Assessor Commercially aware, detail-focused and confident leading projects Chartership desirableWhat's on Offer Competitive salary and performance-related bonus Flexible, hybrid and remote working (including 1 month "work from anywhere") 28 days annual leave service awards Paid overtime / TOIL / flexitime Pension, wellbeing payment, health checks and EAP Chartership support, paid memberships and funded education Industry-leading people culture and regular team eventsThis is a permanent opportunity with a forward-thinking consultancy where sustainability is not just a service, but a mindset