We are CBG Consultants, we Invest in People.

CBG are an ambitious practice of building services consultants with offices in Oxford, London, Manchester, and Cambridge. Our services include a wide range of mechanical and electrical engineering solutions including lighting design, sustainability, building physics and Passivhaus. We specialise in maximising the efficiency of buildings, through optimising fabric with efficient mechanical and electrical design solutions.


CBG are an ambitious 60+ person sustainability-led M&E practice, covering masterplans, new build, extension, fit-out, refurbishment and asset maintenance in all sectors. Our vision is to be a leading consultancy delivering excellence in building physics and engineering for better buildings that benefit their occupants and the environment.


CBG work with Architects and Developers, Private Clients, Project Managers and Cost Consultants, Major Contractors and our main market sectors are, Heritage and Conservation, Rail and Transport Infrastructure, Education, Commercial and Private Developments, Healthcare, Hospitality, Public and Community.


The opportunity.

Due to our continued growth, we are currently looking for a Senior Energy Assessor/Sustainability Engineer to join our Oxford team. The role is hybrid working.

You will work closely with colleagues across our London, Oxford, Cambridge, and Manchester offices. All under the guidance of your line manager, Associate Engineer, and project leaders.

We are looking for an enthusiastic client facing individual who will work within a multi discipline team of engineers on small and large projects, being able to communicate well with colleagues, design team and sub consultants would be required. Ideally already working at Principal level or a senior level wanting to take that next step in their career.


What will you do?

You will be working closely with other team members seeing projects through from inception to completion and handover.

Duties will include (but are not limited to):

  • Feasibility studies
  • Report writing for Planning submissions
  • Preparation of thermal modelling/energy assessments
  • Project design
  • Specifications


What we are looking for.


  • A degree in a relevant subject
  • Minimum 3-5 years relevant experience in building services design
  • Experience in managing and mentoring junior team members
  • Residential and education projects form a major part of our portfolio and as such a good knowledge of new regulations including Part L and Part O would be preferred together with DFE standards
  • Working knowledge of IES Software, Level 5 Energy Assessor and knowledge of SAP10 and Net zero requirements
  • Excellent communication skills
  • Accurate, good organisational, and prioritisation skills
  • Own transport and driving license (desired but not essential)
    • Competent in using Microsoft Office


  • Design and modelling software, previous experience (full training will be provided)


The benefits

  • 25 days paid holiday + bank holidays
  • Career growth & development – we enjoy promoting from within!
  • Excellent perks (but not limited to):
  • Paid for social events such as summer parties, Christmas parties, team lunches, and activity days
  • Private healthcare
  • Bonusly reward scheme, Perks at work, platforms offering gift vouchers from top leading brands of your choice
  • Additional holiday purchase
  • Cycle to work scheme

We are an equal opportunities employer and always looking to enhance diversity within the company.

For interest in this role, please contact submit your CV along with cover letter/email to jobs@cbgc.com


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Application Deadline

31 Aug

Application form

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