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Principle Sustainability Engineer

We are looking for a driven and passionate Principle Sustainability Engineer to lead our building physics and modelling capabilities, helping us to achieve in our mission to deliver the best sustainable outcomes for our clients.

For the successful candidate this role will provide a significant opportunity to lead, develop and grow key services and skills within our business, with autonomy to recruit, mentor and develop our talent across building performance modelling and simulation. There will be genuine opportunity to develop a director level role in a fast growth company.

The candidate must hold a level 5 Non Domestic Energy Assessor accreditation (NDEA), be a CIBSE Low Carbon Assessor/Consultant and demonstrate at least 5 years experience of delivering:

  • Part L compliance Assessment
  • TM59/TM52 overheating analysis
  • Heat gain/heat loss calculations
  • Daylight / sunlight modelling
  • TM54 Evaluation
  • BB101 performance
  • Passive Design/LZC credits for BREEAM
  • Energy reports and strategies for GLA/UK planning policy

The candidate must be an experienced user of IESVE software.

We particularly seek candidates with experience of carrying out:

  • Whole Life Carbon assessments
  • Life Cycle Assessments
  • Circular Economy statements
  • Life Cycle Costing assessments
  • Parametric modelling
  • Building services design

Personal attributes

  • Extremely well organised and demonstrate a keen attention for detail
  • Demonstrate a strong client focus, positive personality and enthusiasm for the subject
  • You must be able to manage your own projects and timescales. This includes liaison and coordination with our wider team and maintaining strong client communications throughout.

What we can offer you:

  • Home based role, 8.30am-5.00pm, Monday to Friday. Very limited offsite UK travel
  • Competitive salary
  • 23 days holiday plus public holidays (increasing 1 day per year up to 26 days)
  • POETS day Fridays
  • Over 3 days of wellness hours available per year
  • Cycle to work scheme
  • Laptop, VoIP phone & home office set up
  • The successful applicant will get to work within a very welcoming, rewarding and flexible working environment with huge scope for personal development.
  • Training & further industry qualification opportunities

To apply for this role please email

To apply for this role please email

Recent Projects

"Build Energy turned around our requirements very quickly, and dealt with building control and all the technical issues on our behalf - which allowed us to complete the project on time."

Stewart Macpherson
- Ravenswood Developments Ltd.

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