Sustainability / Building Physics Consultant

Sustainability Consultant - Energy Modelling (IES Focus)

Location: London Hybrid (Minimum 3 days in office) Full-Time
Salary: 40,000 - 50,000 per annum

Are you passionate about sustainability and energy performance? A fast-growing, mission-driven sustainable engineering consultancy is seeking a talented Sustainability Consultant with expertise in IES energy modelling.

This consultancy operates across sustainability advisory, MEP design, and heat network operations, delivering measurable decarbonisation and energy performance outcomes for buildings and infrastructure.

This is a unique opportunity to join an ambitious and scaling team where you will have real ownership, early client exposure, and the chance to broaden your expertise beyond energy modelling.

Joining this consultancy comes with a range of benefits, including:

• Competitive salary of 40,000 - 50,000 per annum.
• High ownership and visibility within a growing organisation.
• Broad exposure across various sustainability disciplines.
• The opportunity to shape delivery processes in a scaling consultancy.
• A collaborative and supportive team culture.
• Flexible hybrid working arrangements (minimum three days in the London office).

Your typical day will involve:

• Managing and delivering IES energy modelling projects from start to finish.
• Collaborating with design teams and clients to provide clear, actionable insights.
• Supporting the development of decarbonisation strategies and Whole Life Carbon assessments.
• Participating in internal team meetings to refine processes and improve delivery standards.
• Working both independently and collaboratively in a hybrid work environment, with at least three days in the London office.

As a Sustainability Consultant, you will play a key role in delivering impactful solutions. Your responsibilities will include:

• Leading end-to-end IES energy modelling delivery.
• Conducting TM52/TM59 overheating assessments and TM54 operational energy modelling.
• Clearly reporting and communicating results to design teams and clients.
• Supporting wider sustainability workstreams, including decarbonisation strategies, Whole Life Carbon (WLC) assessments, planning support, and heat network optimisation studies.
• Contributing to internal quality assurance processes, templates, and delivery improvements as the team continues to grow.

The ideal candidate will possess the following:

• Strong hands-on experience with IES energy modelling.
• Proven ability to independently deliver TM52/TM59 overheating assessments and TM54 operational energy modelling.
• A proactive approach with the ability to take ownership of projects and maintain momentum.
• Excellent communication skills, with the ability to translate technical findings into clear, actionable recommendations.
• Adaptability and a willingness to contribute beyond a single specialism.
• Comfort working in a fast-paced, growing consultancy environment.

This is not an assistant role; you will be expected to confidently drive modelling work forward with minimal supervision.

If you are an experienced IES modeller looking for greater ownership, variety, and impact within a dynamic and growing consultancy, we would love to hear from you. Take the next step in your career and join a team committed to driving sustainable change.

Apply now for a confidential discussion about this exciting opportunity.