Senior-Principal Building Physics Engineer Up to £60k City of London We are an established sustainability consultancy based in London Bridge. Since our inception in 2012, the company has grown from 2 people to 60. Our clients include developers and investment firms to deliver low-carbon buildings, upgrade MEP services, retrofit buildings and to decarbonise existing portfolios. Our Energy, Carbon & Sustainability team is made up of 15 people and with a great balance of Associates, Principals and Seniors, there is a plenty of opportunities to progress. We are seeking a Senior-Principal Building Physics Engineer to join our team. This is a technical role that requires a deep understanding of energy modelling and building physics. The role also involves working closely with clients and colleagues to deliver high-quality projects. Key Responsibilities: * Lead dynamic thermal modelling and energy performance analysis using IES-VE, with expertise in Apache HVAC. * Deliver NABERS and Design for Performance (DfP) modelling, supporting Net Zero and energy efficiency strategies. * Conduct Part L, TM52, TM54, and TM59 assessments, as well as overheating analysis, daylight studies, and thermal comfort assessments. * Provide technical leadership in building physics and energy modelling, ensuring best practices across projects. * Support other areas of sustainability, including Whole Life Carbon (WLC) and Embodied Carbo...