Building Physics Engineer

Overview

In this Building Physics Engineer role, you contribute expert building performance and energy modelling to UK projects within a multidisciplinary team. You’ll help optimise energy strategies, assess facade performance, and ensure compliance with UK standards while supporting early design decisions. The role blends hands-on modelling with collaboration across MEP, architecture and sustainability teams to deliver low-carbon, high-performing buildings. A key hook is shaping design through robust physics analysis in a net-zero context.

Responsibilities

• Contribute to building physics workstreams: thermal, energy, daylighting, overheating, natural ventilation and comfort analysis
• Develop and optimise energy strategies, operational energy assessments (TM54), and low-carbon design solutions
• Assess façade performance, passive design, solar control and fabric optimisation
• Ensure compliance with Part L, TM52/TM59, EPC; contribute to BREEAM/WELL/LEED credits
• Produce technical reports and clearly communicate findings to internal teams and clients
• Collaborate with MEP, architecture, sustainability, and digital engineering teams to integrate building physics
• Provide input on early-stage design decisions: massing, orientation, glazing ratios, shading, natural ventilation feasibility
• Support adoption of digital modelling workflows and best practices
• Mentor junior engineers and participate in knowledge-sharing sessions

Key requirements

• Experience in building physics, energy modelling, or building performance analysis in a consultancy
• Proficiency with IES-VE (or equivalent) including simulation, calibration and QA
• Strong understanding of passive design, low-carbon buildings, façade performance and building environmental behaviour
• Ability to deliver multidisciplinary projects and clearly present technical information to teams
• Desirable: exposure to net-zero strategies, operational energy modelling, heat decarbonisation, or embodied carbon analysis
• Familiarity with parametric modelling, digital workflows, or automation tools
• Experience mentoring junior engineers
• Degree in Building Physics, Mechanical/Environmental Engineering, Building Services Engineering, or related field
• Chartership (CEng) via CIBSE, IMechE, or equivalent is desirable but not essential

• Communication of complex technical concepts
• Collaborative mindset across multidisciplinary teams
• Mentoring and knowledge sharing
• IES-VE or equivalent
• Building physics and energy modelling
• Passive design and low-carbon building concepts

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