Job Search

Senior-Principal Building Physics Engineer (DfP / NABERS / Apache HVAC)
London
Up to £68k

Are you a building performance expert ready to lead on some of the UK's most exciting low-energy projects? One of the UK's top multidisciplinary consultancies is looking for a Senior-Principal Building Physics Engineer to lead the delivery of Design for Performance (DfP) and NABERS UK modelling, with strong experience using Apache HVAC within IES-VE.

This is a rare opportunity to take a technical leadership role within a nationally recognised team delivering Net Zero strategies and operational energy modelling at the highest level.

The Role
* Lead on DfP and NABERS UK performance modelling across a wide portfolio of commercial and mixed-use developments
* Deliver detailed simulations using Apache HVAC in IES-VE to support operational energy assessments
* Coordinate with internal design teams, external consultants, and architects to influence design from early stage
* Develop and manage robust energy strategies that align with Net Zero Carbon and ESG frameworks
* Support certification processes and engagement with Independent Design Review (IDR) panels
* Mentor junior team members and contribute to service innovation and thought leadership

About You
* Strong experience with IES-VE, specifically Apache HVAC for operational energy modelling
* Proven experience delivering NABERS UK and DfP models to industry benchmarks
* In-depth knowledge of UK Building Regulations, Part L, TM54, and energy compliance pathways
* Excellent communicator, confident engaging with design teams, developers, and certifiers
* Experience leading projects and supporting business development is a plus
* Passionate about driving down operational energy use and promoting performance-led design

Why Join?
* Play a lead role in advancing operational energy modelling at a national level
* Work in a flexible, hybrid environment with offices across the UK
* Join a growing sustainability team with a strong pipeline of commercial and complex projects
* Benefit from structured progression, training support, and a highly collaborative culture

Interested in shaping how buildings perform, not just how they look? Get in touch or 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.

Senior-Principal Passivhaus Consultant
London
Up to £68k

Join one of the UK's leading multidisciplinary consultancies and play a key role in delivering the next generation of ultra-low energy buildings. This is an exciting opportunity for a Senior or Principal Passivhaus Consultant to help grow and lead a specialist service within a national consultancy known for its technical excellence, collaborative culture, and strong sustainability credentials.

The Opportunity:
You'll be a subject matter expert in Passivhaus and EnerPHit methodologies, responsible for leading design advice and certification strategies on both residential and non-residential projects. This role offers a high degree of autonomy and the chance to shape how Passivhaus principles are integrated into major UK developments.

What You'll Be Doing:
* Leading the delivery of Passivhaus and EnerPHit projects from concept to certification
* Advising clients, architects, and design teams on fabric-first, low-energy design strategies
* Coordinating PHPP modelling, thermal bridging, airtightness, and MVHR design inputs
* Managing and reviewing submissions for Passivhaus certification
* Supporting the wider sustainability team on Net Zero Carbon and Whole Life Carbon strategies
* Representing the business at design team meetings and industry events
* Mentoring junior team members and contributing to thought leadership

About You:
* Certified Passivhaus Designer or Consultant, with several projects delivered to certification
* Strong working knowledge of PHPP, thermal bridge analysis (e.g., THERM), and airtightness detailing
* Experience engaging with architects and clients to influence low-energy design
* Ability to lead projects independently and contribute to business development
* Excellent communication skills and a genuine passion for sustainable, high-performance buildings

Why Join?
* Be part of a fast-growing sustainability team within an established, multidisciplinary consultancy
* Work on a wide range of high-profile, impactful projects across the UK
* Enjoy flexible working, excellent progression opportunities, and support for further qualifications
* Help shape the future of Passivhaus delivery within a collaborative, people-first business

Ready to lead the charge on Passivhaus design? Apply now or get in touch to learn more.

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 Building Physics Engineer
London
Up to £45k

A multidisciplinary Built Environment Consultancy is seeking an Intermediate Building Physics Engineer to support the delivery of sustainable and energy-efficient design solutions across a broad range of sectors, including education, healthcare, commercial, and public sector projects.

You'll be part of an experienced and supportive team, working closely with senior engineers, architects, and clients to develop building performance strategies from concept through to construction.

What You'll Be Doing:
* Supporting the delivery of thermal modelling, energy analysis, and Part L compliance
* Assisting in overheating assessments, natural ventilation analysis, and thermal comfort studies
* Producing IES-VE or DesignBuilder models for energy simulations
* Collaborating on low-energy design strategies and carbon reduction studies
* Contributing to sustainability assessments such as BREEAM, WELL, and LEED
* Working with multidisciplinary teams on new-build and refurbishment projects

About You:
* 2-4 years' experience in a building physics or energy modelling role
* Familiar with IES-VE, TAS, or DesignBuilder software
* A good understanding of UK Building Regulations, TM52, TM54, TM59, and SAP/SBEM
* Eager to contribute to sustainable building design and develop your technical and consultancy skills
* Strong communication and collaboration skills

Why Join?
* Be part of a well-established consultancy delivering award-winning work across the UK
* Work on meaningful, sustainable projects with expert guidance and mentoring
* Access to clear progression routes, professional development, and chartership support
* Competitive salary and comprehensive benefits

Apply now to build your career in building performance and 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.

Senior Building Physics Engineer
London
Up to £63k

A well-established multidisciplinary Built Environment Consultancy is looking for a Senior Building Physics Engineer to join their growing sustainability and engineering team. With offices across the UK and a broad portfolio of work in sectors including education, healthcare, commercial, and defence, this consultancy offers a dynamic environment for those passionate about building performance and sustainable design.

The Role:
You'll lead the development and delivery of building performance strategies across a wide range of projects, from early concept stages through to completion. Your work will focus on evaluating and improving energy, carbon, and comfort performance, helping clients meet their environmental and operational targets.

What You'll Be Doing:
* Carrying out building performance modelling and simulation using tools like IES-VE or DesignBuilder
* Leading thermal comfort assessments, energy strategy reports, and advising on Part L compliance
* Supporting design teams with passive design strategies and energy-efficient solutions
* Working closely with clients, architects, and engineers across all design stages
* Mentoring junior team members and contributing to service development
* Keeping up to date with UK Building Regulations, sustainability frameworks, and industry trends

About You:
* Proven experience in building physics, energy modelling, or environmental design
* Proficiency in building simulation tools such as IES-VE, TAS, or similar
* Strong knowledge of UK compliance standards and sustainable design principles
* Excellent communication skills with a confident and collaborative approach
* A passion for low-carbon, performance-driven buildings

Why Apply?
* Work on a diverse and meaningful portfolio of projects across the UK
* Be part of a forward-thinking, supportive team
* Excellent scope for career progression and professional development
* Competitive salary and benefits package

Apply now to join a consultancy committed to improving the built environment through high-performance, 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.

Senior / Principal Building Physics Engineer - International Projects
London, UK
Up to £65k

Join a leading global planning and engineering consultancy with a strong presence in the UK and the Middle East. Our London office is seeking a dynamic and experienced Senior / Principal Building Physics Engineer to contribute to innovative building services projects across diverse sectors.

About Us:
With over 20 years of experience in the UK and a global team of 6,000+ professionals, we deliver integrated engineering solutions across civil, structural, building services, façade, and related disciplines. Our London office, located in the heart of the city, fosters a collaborative and supportive work environment, emphasising both professional excellence and employee well-being.

Role Overview:
As a Senior / Principal Building Physics Engineer, you will be involved in all design stages of projects, from early-stage concept development to detailed design and construction. Your role will involve close collaboration with clients, architects, and multidisciplinary teams to deliver sustainable and high-performance building solutions.

Key Responsibilities:
* Lead building physics analyses, including energy modeling, thermal comfort assessments, and daylight simulations.
* Engage directly with clients, providing expert advice and building strong relationships.
* Participate in design team meetings, confidently presenting and challenging design concepts to ensure optimal outcomes.
* Collaborate with architects and engineers to integrate sustainable design strategies into projects.
* Mentor junior team members, fostering a culture of continuous learning and development.

Qualifications:
* Proven experience in building physics engineering, with a strong portfolio of completed projects.
* Proficiency in relevant simulation tools (e.g., IES-VE).
* Excellent communication skills, with the ability to articulate complex concepts to diverse audiences.
* A proactive approach to problem-solving and a commitment to sustainable design principles.

Why Join Us:
* Be part of a globally recognised consultancy with a diverse project portfolio in the UK and the Middle East.
* Work in a modern, centrally located London office designed to promote collaboration and well-being.
* Engage in a culture that values innovation, professional growth, and community involvement.
* Enjoy a supportive environment that encourages work-life balance and continuous development.

If you're ready to take your career to the next level and make a meaningful impact on sustainable building design, we invite you to apply.

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.

Sustainability Consultant (Building Physics)
 £35k-£45k
 City of London

We are an established sustainability consultancy based in London Bridge. Since our inception in 2012, the company has grown from 2 people to 60. Our clients include developers and investment firms to deliver low-carbon buildings, upgrade MEP services, retrofit buildings and to decarbonise existing portfolios. Our Energy, Carbon & Sustainability team is made up of 15 people and with a great balance of Associates, Principals and Seniors, there is a plenty of opportunities to progress.

We are seeking a Building Physics Consultant to join our team. This is a technical role that requires a deep understanding of energy modelling and building physics. The role also involves working closely with clients and colleagues to deliver high-quality projects.

Responsibilities:
* Undertake detailed energy modelling and building physics analysis using IES VE.
* Interpret and analyse data to identify energy-saving opportunities for buildings.
* Develop and manage project deliverables, budgets, and schedules.
* Liaise with clients and project teams to ensure that project objectives are met.
* Stay up to date with industry trends and regulations related to energy modelling and building physics.
* Provide technical support and mentoring to junior staff.

Requirements: 
* Bachelors or Masters degree in engineering, physics, or a related field. 
* Extensive experience in energy modelling and building physics using IES VE. 
* Strong analytical and problem-solving skills. 
* Excellent communication and interpersonal skills. 
* Ability to work independently and as part of a team. 
* Experience working with developers and investment firms is preferred. 
* Relevant professional qualifications are an advantage. 
 
We offer a competitive salary based on experience, as well as great progression opportunities. All employees have a dedicated career plan on both the professional and technical sides. Three people have been promoted to Director in the last three years, and this trend will continue as the business grows. 
 
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.

Building Physics Engineer - M&E Contractor
 Up to £45k
 London, UK

Are you passionate about sustainable building design and energy efficiency? A leading M&E Design & Build Contractor is looking for a Building Physics Engineer to join their growing team. This is a fantastic opportunity to work on high-profile projects across commercial, residential, data centres, retail, and pharmaceutical sectors, contributing to the development of energy-efficient, low-carbon buildings. 

Key Responsibilities: 
* Conduct dynamic thermal modelling and energy performance analysis using IES-VE or similar tools. 
* Perform Part L, TM52, TM54, and TM59 assessments to ensure compliance with building regulations. 
* Lead overheating analysis, daylight studies, and thermal comfort assessments. 
* Provide technical input on Whole Life Carbon (WLC) and Embodied Carbon assessments. 
* Work closely with MEP engineers, architects, and sustainability consultants to integrate energy-efficient strategies into designs. 
* Support BREEAM, LEED, WELL, and NABERS assessments where required. 
* Stay updated on building regulations, net zero carbon strategies, and industry best practices. 

About You: 
* Degree in Building Physics, Mechanical Engineering, Sustainability, or related field. 
* 2+ years experience in a Building Physics or Energy Modelling role. 
* Proficiency in IES-VE, TAS, DesignBuilder, or similar simulation tools. 
* Strong knowledge of Part L, TM52, TM54, TM59, and SAP/SBEM assessments. 
* Passion for low-carbon, high-performance building design. 
* Excellent communication skills and ability to work in a multidisciplinary team. 

Why Join? 
* Work on landmark projects across multiple sectors, including data centres and commercial developments. 
* Be part of a forward-thinking, innovative team driving sustainable solutions. 
* Strong opportunities for career progression and professional development. 
* A company culture that values collaboration, learning, 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.