Building Physics Engineer

Building Physics/Energy Engineer

London (South Bank)

Salary - Up to £55k

A well-established, independently run building services and sustainability consultancy is looking to bring a Building Physics Engineer into their London team. The practice operates across two offices and has built a strong reputation across commercial, residential, hotel, later living, and mixed-use sectors – with a notable track record on complex, high‑specification projects including BREEAM Outstanding schemes.

This is a design‑led position within the sustainability team. Day‑to‑day you will carry out operational energy modelling using IES, feed results into broader carbon studies – including embodied and lifecycle carbon analysis – and produce non‑domestic EPCs (Level 5 lodgement capability is essential). The focus is technical design‑stage modelling work that directly influences project outcomes. Minimal travel is required and the team works on a flexible hybrid basis, with a preference for in‑office presence at the start of the week.

• Competent IES modeller – essential
• Qualified to lodge non‑domestic EPCs (Level 5 accredited)
• Experience across commercial or mixed‑use building types preferred
• SAP calculations or domestic energy assessment skills are a bonus, not a must
• Comfortable working as part of a multidisciplinary team and confident communicating with clients and architects
• Intermediate to lower‑senior level of experience; qualified and capable of working independently, but not necessarily a senior appointment

This consultancy has been growing steadily through project wins and long‑standing client relationships rather than churn. Their sustainability team was established organically and sits alongside several M&E engineering teams across two offices. Average tenure is notably long; people join and tend to stay, which says a lot about the culture. Current project activity spans EV‑related industrial facilities, commercial retrofits (heat pump and low‑carbon systems upgrades), and refurbishment of older commercial stock for London‑based developers and investors.

For more information, contact Danny Brookes at Calibre Search.

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