Step into a senior role where your building physics expertise directly shapes low-energy, low-carbon buildings from concept to operation. This is a chance to lead technically challenging projects, influence design decisions, and drive best practice in performance-led design within a collaborative, forward-thinking team. About the Role: As Senior Building Physics Engineer, you will lead advanced building performance analysis across a range of complex projects, from early-stage feasibility through to detailed design and post-occupancy evaluation. You will be the go-to specialist for energy, thermal comfort and carbon modelling, guiding design teams and clients towards compliant, efficient and resilient solutions. Your work will underpin planning, certification and whole-life carbon strategies, ensuring robust, evidence-based outcomes. Key Responsibilities: * Lead advanced building energy modelling using tools such as IES-VE and/or EnergyPlus across multiple projects. * Develop, run and interpret dynamic thermal and overheating assessments in line with Part O and TM54 methodologies. * Produce compliance calculations, reports and evidence for Part L and related UK Building Regulations. * Undertake whole life carbon assessments using platforms such as One Click LCA, informing design optimisation and carbon reduction strategies. * Manage and deliver BREEAM assessments, coordinating inputs from design teams and preparing high-quality subm...