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Senior Building Physics Engineer
London | Up to £55k | Hybrid working

Deliver high-performance, low-carbon design on projects across the UK and beyond.

A leading global planning, engineering, and design consultancy is seeking a talented and motivated Senior Building Physics Engineer to join its growing team in London. You'll have the opportunity to contribute to landmark projects in the UK, the Middle East, and internationally - shaping buildings that perform as well in practice as they do on paper.

This is a fantastic opportunity for an experienced engineer with a strong background in building performance and energy modelling to take the next step in their career.

What you'll do
* Deliver high-quality building physics analysis across all stages of design, from early concept to detailed design and construction.
* Undertake dynamic thermal simulations, energy modelling, and overheating analysis to inform design decisions.
* Support operational energy modelling and compliance with Part L, TM52, TM54, and TM59.
* Use tools such as IES-VE to develop robust building performance strategies.
* Contribute to projects requiring NABERS / Design for Performance modelling and ApacheHVAC simulations (desirable).
* Advise design teams on energy efficiency, thermal comfort, and passive design strategies.
* Represent the consultancy in design team meetings, confidently challenging and influencing architects and consultants to drive low-carbon outcomes.
* Mentor and support junior engineers in their technical and professional development.
* Collaborate with colleagues across global offices to share knowledge and deliver innovative solutions.

About you
* Degree in Engineering, Building Physics, or a related discipline.
* 5+ years' experience in building physics and performance modelling.
* Strong knowledge of IES-VE (essential).
* Experience with ApacheHVAC and NABERS/Design for Performance modelling is desirable but not essential.
* Proven ability to deliver UK compliance modelling and building performance studies.
* Excellent communication skills, with the confidence to engage clients and influence design teams.
* Passion for sustainability and innovation in the built environment.
* Chartered Engineer status (or working towards) is desirable.

Why join?
* Work on prestigious projects across the UK and internationally, spanning commercial, residential, education, and mixed-use developments.
* Join a global consultancy with the scale to deliver major projects and the agility to innovate.
* Enjoy a collaborative and supportive environment that encourages growth, learning, and career progression.
* Competitive salary and benefits, with hybrid working and ongoing professional development support.

If you're ready to take on a senior role within a leading consultancy and shape the future of sustainable design, apply today.

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.

Intermediate-Senior Building Physics Engineer
Up to £55k
London

A forward-thinking sustainability consultancy is growing its Building Performance capability and is seeking a hands-on Building Physics Engineer to help deliver performance-led, low-carbon design across a diverse portfolio. You'll join a team known for practical decarbonisation advice, net-zero roadmaps and asset-level performance improvements for clients across real estate and development.

The practice is active in the UK's net-zero conversation and contributes to industry guidance on the emerging UK Net Zero Carbon Buildings Standard, with team members engaged in sector events and thought leadership. You'll be part of a consultancy that blends rigorous analytics with clear, client-facing advice.

What you'll do
* Deliver dynamic thermal simulations and energy modelling (e.g., IES-VE) to inform design decisions and compliance.
* Undertake overheating assessments (TM52/TM59), operational energy studies (e.g., TM54), and Part L/SAP/SBEM compliance.
* Produce energy and carbon strategies for planning and concept design, aligning recommendations with net-zero pathways.
* Translate model outputs into clear, client-ready advice present at design team meetings and stakeholder workshops.
* Support post-planning/delivery stages (parameter updates, optimisation, POE alignment) to close the "performance gap."
* Collaborate with ESG/Net Zero specialists and wider sustainability consultants (climate risk, social value, biodiversity) to deliver holistic outcomes.

What you'll bring
* 4+ years (Intermediate) or 6+ years (Senior) in building physics/energy modelling within consultancy or design teams.
* Proficiency in IES-VE (or similar), with a track record in thermal/energy modelling and UK compliance.
* Strong grasp of UK frameworks and guidance (Part L, TM52/54/59 awareness of LETI/GLA helpful).
* Confident communicator able to challenge and influence design decisions with evidence-based recommendations.
* A genuine passion for net-zero and whole-life performance, with curiosity to engage in emerging standards and best practice.

Why Join?
* Be part of a mission-driven consultancy committed to low-carbon, circular and resilient development with tangible client impact.
* Work alongside recognised ESG & Net Zero specialists on projects that connect strategy to delivery.
* Opportunities for professional development, thought leadership and cross-disciplinary collaboration.
* Hybrid working and a supportive culture that values initiative and innovation.

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.

Associate - Building Physics Team Lead
Up to £75k
London

Do you want to play a leading role in shaping the future of sustainable building design? This is an exciting opportunity for an ambitious Associate-level Building Physics Engineer to lead and grow a Building Physics team within one of the UK's most respected multidisciplinary design consultancies.

The Building Physics team delivers cutting-edge modelling and performance analysis across a wide range of high-profile projects - from Net Zero Carbon strategy development to forensic modelling and embodied carbon assessments. As Team Lead, you'll harness the expertise of a highly skilled group of analysts, expand the service offering, and ensure building performance is at the forefront of the design process.

What You'll Do
* Lead and develop the Building Physics team, acting as the technical authority on building performance analysis.
* Drive Net Zero Carbon strategies, operational and embodied carbon assessments, and estate-wide master planning.
* Collaborate with architects, engineers, and clients to influence sustainable design decisions.
* Represent the business externally, building strong client relationships and supporting business development.
* Guide the professional growth of the team, ensuring high standards and innovation across projects.

About You
* Chartered Engineer/Environmentalist (or working towards).
* Strong background in building performance modelling (IESVE, CFD, or equivalent).
* Proven track record in Net Zero Carbon strategy development, NABERS/DfP modelling, and embodied carbon assessment.
* Excellent communication skills with the confidence to engage clients and lead design team discussions.
* Experience managing and mentoring others, with a collaborative and entrepreneurial mindset.

Why Join?
* Be at the forefront of designing Net Zero, low-carbon buildings that have a real impact.
* Work across diverse sectors including healthcare, workplace, education, culture, sport, and science.
* Thrive in a collaborative environment where engineers, architects, and designers work side by side.
* Benefit from a competitive package including flexible pension, private medical, professional subscriptions, and excellent career progression.
* Join a global practice that champions sustainability, innovation, and inclusivity in every project.

If you're a driven Building Physics professional ready to take the next step into leadership, this is your chance to shape the future of sustainable design.

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
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.

Associate Building Physics Engineer
Up to £85k
London

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.

Intermediate - Senior Building Physics Engineer
£40k-£48k
City of London

Are you passionate about delivering sustainable design solutions that make a real impact? Do you thrive in dynamic environments where innovation and technical expertise shape the future of the built environment?

As part of an established consultancy with ambitious but organic growth plans, this position provides extensive personal and professional training to develop both technical and client-facing skills. There are significant professional development opportunities, including the chance to become a future leader within the business.

About the Role:
The right candidate will be able to hit the ground running, leading the technical delivery of their projects while receiving support from the Associate Director in managing the wider project and client relationship. The role will involve working across a range of sectors such as commercial, residential, education, healthcare, labs & sciences, and heritage & culture, delivering:
* Thermal Simulations using IES-VE
* Part L Assessments (TM54)
* Part O and Overheating Analysis (TM52 & TM59)
* Heating & Cooling Load Calculations
* Thermal Comfort Studies
* EPCs, SAP & SBEM Assessments

This role will directly influence sustainability outcomes on significant projects while ensuring client satisfaction through technical excellence.

About You:
* Proven experience in Building Physics and Energy Modelling
* Strong proficiency in IES-VE and related assessments (TM52, TM54, TM59)
* Ability to deliver projects across diverse sectors, from residential to healthcare
* A passion for sustainability and energy-efficient design
* Ready to take on a leadership role in the technical delivery of projects

If you're looking for an opportunity to develop leadership skills and grow your career while contributing to the future of sustainable design, this position is the perfect fit.

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.

Senior Building Physics Engineer
London (Hybrid Working)
Permanent
Up to £55,000 (dependant on experience)

As a result of their continued growth, an award-winning, independent Building Services Design Consultancy, with offices around the UK, are looking for a Senior Building Physics Engineer to join either their London or Oxford office. This individual will bring with them expertise in thermal modelling and environmental analysis and will be instrumental in driving forward their sustainability offering.
They offer a range of services including mechanical and electrical engineering, sustainability, building physics, and Passivhaus design, across diverse sectors including heritage, cultural, education, healthcare, residential, and commercial.

The Role
As a Senior Building Physics Engineer, you will play a central role in delivering high-quality building performance analysis and guiding design teams towards low-energy, net zero, and climate-resilient outcomes.
You will work closely with colleagues across their different offices and will lead technical assessments, mentor junior engineers, and liaise with clients and architects to deliver solutions that balance energy efficiency, comfort, and sustainability. This is a client-facing role that offers excellent scope for professional growth, with a clear pathway to Principal Consultant .

Key Responsibilities
- Deliver thermal modelling and energy assessments using IES software, including Part L compliance and energy strategies.
- Conduct SAP assessments for residential projects, ensuring compliance with SAP10 methodology and future homes standards.
- Carry out overheating analysis and advise on mitigation strategies for a wide range of building types.
- Undertake daylight and sunlight analysis, supporting planning applications and optimising building design.
- Prepare clear and robust technical reports for planning submissions, building control, and client presentations.
- Attend design team and client meetings, providing confident, professional, and practical advice.
- Mentor and train graduates and junior engineers, helping them develop building physics skills and modelling expertise.
- Collaborate with sustainability engineers, M&E engineers, and external consultants to integrate building physics within wider project delivery.

For this role they are looking for an enthusiastic, detail-driven consultant who combines technical expertise with strong communication skills.

Essential qualifications & experience
- A degree in Building Services Engineering, Architectural Engineering, Environmental Design, or a related discipline.
- Minimum 3-5 years' experience in a building physics / sustainability consultancy role.
- Proven expertise with IES VE software and Part L compliance modelling.
- Strong working knowledge of SAP assessments, SAP10 methodology, and UK building regulations.
- Experience in overheating and daylight analysis, using industry-standard methods and tools.
- Excellent technical report writing and presentation skills.
- Ability to manage multiple projects and meet deadlines.

Desirable experience
- Knowledge of Passivhaus principles and PHPP modelling.
- WLCA knowledge and experience.
- BREEAM knowledge and experience.
- A UK driving licence.

What they Offer
- Up to £55,000 annual salary (dependent on experience).
- 25 days annual leave + bank holidays, with option to purchase additional leave.
- Private healthcare.
- Cycle to work scheme.
- Regular social events, including summer and Christmas parties, team lunches, and activity days.
- A strong focus on career progression, with structured pathways and support for chartership.
- Access to internal and external training and CPD opportunities.
- The chance to work on a wide range of high-profile projects, from research facilities to historic heritage sites to contemporary residential developments.

Joining the business would mean being part of a close-knit, supportive, and ambitious team. You'll work on meaningful projects that directly contribute to the transition towards net zero carbon buildings, in a role where your technical expertise and ideas will help shape the future of sustainable design.

If you're keen to take on a Senior role alongside an established team and help create real, lasting change within the built environment, then please apply or get in touch with Zoe Elliott at: [email protected]

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

Senior Building Physics Consultant
Oxford (Hybrid Working)
Permanent
Up to £55,000 (dependant on experience)

As a result of their continued growth, an award-winning, independent Building Services Design Consultancy, with offices around the UK, are looking for a Senior Building Physics Consultant to join their Oxford office. This individual will bring with them expertise in thermal modelling and environmental analysis and will be instrumental in driving forward their sustainability offering.
They offer a range of services including mechanical and electrical engineering, sustainability, building physics, and Passivhaus design, across diverse sectors including heritage, cultural, education, healthcare, residential, and commercial.

The Role
As a Senior Building Physics Consultant, you will play a central role in delivering high-quality building performance analysis and guiding design teams towards low-energy, net zero, and climate-resilient outcomes.
You will work closely with colleagues across their different offices and will lead technical assessments, mentor junior engineers, and liaise with clients and architects to deliver solutions that balance energy efficiency, comfort, and sustainability. This is a client-facing role that offers excellent scope for professional growth, with a clear pathway to Principal Consultant.

Key Responsibilities
- Deliver thermal modelling and energy assessments using IES software, including Part L compliance and energy strategies.
- Conduct SAP assessments for residential projects, ensuring compliance with SAP10 methodology and future homes standards.
- Carry out overheating analysis and advise on mitigation strategies for a wide range of building types.
- Undertake daylight and sunlight analysis, supporting planning applications and optimising building design.
- Prepare clear and robust technical reports for planning submissions, building control, and client presentations.
- Attend design team and client meetings, providing confident, professional, and practical advice.
- Mentor and train graduates and junior engineers, helping them develop building physics skills and modelling expertise.
- Collaborate with sustainability engineers, M&E engineers, and external consultants to integrate building physics within wider project delivery.

For this role they are looking for an enthusiastic, detail-driven consultant who combines technical expertise with strong communication skills.

Essential qualifications & experience
- A degree in Building Services Engineering, Architectural Engineering, Environmental Design, or a related discipline.
- Minimum 3-5 years' experience in a building physics / sustainability consultancy role.
- Proven expertise with IES VE software and Part L compliance modelling.
- Strong working knowledge of SAP assessments, SAP10 methodology, and UK building regulations.
- Experience in overheating and daylight analysis, using industry-standard methods and tools.
- Excellent technical report writing and presentation skills.
- Ability to manage multiple projects and meet deadlines.

Desirable experience
- Knowledge of Passivhaus principles and PHPP modelling.
- WLCA knowledge and experience.
- BREEAM knowledge and experience.
- A UK driving licence.

What they Offer
- Up to £55,000 annual salary (dependent on experience).
- 25 days annual leave + bank holidays, with option to purchase additional leave.
- Private healthcare.
- Cycle to work scheme.
- Regular social events, including summer and Christmas parties, team lunches, and activity days.
- A strong focus on career progression, with structured pathways and support for chartership.
- Access to internal and external training and CPD opportunities.
- The chance to work on a wide range of high-profile projects, from research facilities to historic heritage sites to contemporary residential developments.

Joining the business would mean being part of a close-knit, supportive, and ambitious team. You'll work on meaningful projects that directly contribute to the transition towards net zero carbon buildings, in a role where your technical expertise and ideas will help shape the future of sustainable design.

If you're keen to take on a Senior role alongside an established team and help create real, lasting change within the built environment, then please apply or get in touch with Zoe Elliott at: [email protected]

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

Intermediate Building Physics Engineer
SE London
Up to £45k

Are you a Building Physics Engineer looking to grow your career with a purpose-driven consultancy that blends engineering, sustainability, and innovation?

A leading multidisciplinary construction and property consultancy is looking for an Intermediate Building Physics Engineer to join their growing Sustainability team in London. This is a great opportunity to get involved in early-stage design advice and develop your technical expertise in a collaborative, values-driven business.

About the Role:
You'll support the delivery of sustainable building design by carrying out energy modelling, thermal performance analysis, and compliance assessments across a wide range of sectors - including residential, commercial, education, and healthcare.
You'll work alongside architects, M&E engineers, and sustainability consultants to help shape low-carbon strategies from concept through to detailed design.

Key Responsibilities:
* Deliver dynamic thermal simulations and energy modelling using tools such as IES-VE.
* Support Part L compliance, TM52, TM59, and thermal comfort assessments.
* Carry out heating and cooling load calculations and advise on passive design strategies.
* Contribute to energy and carbon strategies for planning submissions.
* Collaborate closely with multidisciplinary teams to integrate sustainable design principles.

About You:
* 2-4 years' experience in building physics or sustainability consultancy.
* Proficient in IES-VE or similar software for dynamic modelling.
* Familiar with UK building regulations and standards (e.g., Part L, TM52, TM59).
* Passionate about sustainability and carbon reduction in the built environment.
* Collaborative, proactive, and eager to continue learning and developing.

Why Join?
* Be part of a B Corp certified consultancy committed to sustainable outcomes.
* Join a growing and dynamic team with strong support for professional development and chartership.
* Work on varied, meaningful projects that contribute to Net Zero goals.
* Hybrid working, flexible benefits, and a supportive, people-first culture.

Ready to accelerate your career in sustainable design? Apply now or reach out to learn more.

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

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.