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Principal - Associate Building Physics Engineer
Up to £75k
London

A leading multidisciplinary design practice is looking for a talented and experienced Principal - Associate Building Physics Engineer to take a technical leadership role within their London sustainability and environmental design team.

This is a fantastic opportunity to shape the performance and sustainability strategy of diverse, design-led projects-while working closely with architects, clients, and other engineering disciplines to influence outcomes from concept through to delivery.

The Role
As the technical lead for building physics, you will:
* Deliver and oversee dynamic thermal modelling, overheating analysis, and energy compliance assessments
* Advise design teams and clients on passive design strategies, operational energy, and performance-led design
* Guide the integration of building physics into early concept work, detailed design, and construction stages
* Manage project deliverables and act as a mentor and team lead for junior engineers
* Add value by spotting opportunities to improve building performance, reduce energy use, and support sustainable outcomes
* Represent the practice externally in meetings, workshops, and industry forums
While the primary focus of the role is building physics, knowledge or interest in broader sustainability areas (e.g., Whole Life Carbon, certification, Net Zero strategy) would be welcomed.

About You
* Strong technical expertise in building performance analysis, ideally using IES-VE or similar tools
* Proven experience working on complex, multidisciplinary design projects
* Confident communicator, comfortable engaging directly with clients, architects, and design teams
* Leadership skills with the ability to mentor and guide other engineers
* Collaborative, solutions-focused, and passionate about driving sustainable outcomes
* Previous experience at Principal or Associate level (or ready to step up into that role)

Why Join?
* Influence award-winning, high-profile projects with a leading design consultancy
* Take ownership as the technical lead in building physics and shape project strategies
* Work in a collaborative, multidisciplinary environment where design and sustainability go hand in hand
* Enjoy a flexible working culture, comprehensive benefits, and strong career progression opportunities

Whether you're working in the larger corporate companies or a small SME this is certainly one to take note of. Please don't hesitate to apply or get in touch for further info on the email below, we can arrange a confidential conversation anytime to suit you.

Your expert recruitment consultant is Lakshman Sivanesan, call today on 0207 422 7463 or email [email protected] Eden Brown is committed to equality in the workplace and is an equal opportunity employer.

Eden Brown is committed to equality in the workplace and is an equal opportunity employer.

Principal - Associate Building Physics Engineer
London
Up to £85k

A leading building services consultancy is seeking an ambitious and technically excellent Principal - Associate Building Physics Engineer to join their London office. This is a rare and exciting opportunity to build a team from the ground up, act as the face of sustainability and building performance, and work towards leading your own P&L function in the near future.

With a strong pipeline of technically complex, low-energy projects across commercial, residential, education, and healthcare sectors, this role puts you in a strategic position to shape how building performance is delivered across the UK and Europe.

The Role
You'll lead the building physics and performance modelling services, guiding clients and design teams toward high-performance, low-carbon outcomes. From early-stage passive design advice to detailed compliance modelling, you'll drive the technical delivery while growing and mentoring a new team around you.

Key responsibilities include:
* Delivering and reviewing dynamic thermal modelling, energy compliance, and overheating assessments (TM54, TM59, TM52, Part L & O)
* Leading the use of tools such as IES-VE, ApacheSim, and Apache HVAC to assess building performance
* Supporting Net Zero strategies, carbon assessments, and wider sustainability inputs as needed
* Acting as the key client contact, leading presentations, advising design teams, and championing performance-led design
* Growing a new team of engineers under your leadership, with support from the wider practice
* Contributing to business development and eventually taking ownership of your own P&L responsibility

About You
* Degree-qualified with 7+ years' experience in building physics or sustainable design
* Proficient in IES-VE (including Apache HVAC) and familiar with compliance tools and frameworks
* Experienced in leading projects and managing client relationships
* Strong communicator, confident advising stakeholders and representing the practice externally
* Passionate about shaping the future of Net Zero design and performance-driven buildings
* Ready to step into a strategic leadership role and grow a specialist team

Why Apply?
* Define and grow your own building physics & sustainability offering
* Work toward owning and managing your own P&L and team structure
* Lead the delivery of high-impact projects with technical depth and real-world value
* Join a flexible, supportive consultancy that empowers individuals to take ownership
* Enjoy hybrid working, chartership support, bonus scheme, CPD, and a collaborative culture

Whether you're working in the larger corporate companies or a small SME this is certainly one to take note of. Please don't hesitate to apply or get in touch for further info on the email below, we can arrange a confidential conversation anytime to suit you.

Your expert recruitment consultant is Lakshman Sivanesan, call today on 0207 422 7463 or email [email protected] Eden Brown is committed to equality in the workplace and is an equal opportunity employer.

Eden Brown is committed to equality in the workplace and is an equal opportunity employer.