Principal Sustainability Consultant

by | Dec 3, 2025

Principle Sustainability Consultant

Cardiff

I’m partnering with a leading engineering and sustainability consultancy known for delivering innovative, low-carbon design solutions across the built environment. They are now looking to appoint a Principal Sustainability Engineer to join their growing team.

  • Proven experience working as a Sustainability Consultant at Senior or Principal level

  • Strong technical knowledge in energy and building performance modelling

  • Proficiency with tools such as IES VE, Elmhurst, Part L and Part O assessments

  • Experience delivering environmental and wellbeing assessments (e.g., BREEAM, WELL, HQM)

  • Ability to lead sustainability workstreams across all RIBA stages

  • Demonstrated project leadership, including resource coordination and team oversight

  • Experience supporting planning applications and working with local authorities

  • Strong communication skills, including leading workshops and presenting to design teams

  • Ability to delegate, review work, and support the development of junior team members

Desirable Criteria

  • Experience with operational energy modelling (TM54, ApacheSim, ApacheHVAC)

  • Knowledge of NABERS UK or Design for Performance frameworks

  • Experience with whole life carbon assessments and tools such as OneClick LCA

  • Understanding of Passivhaus methodologies (e.g., PHPP)

  • Experience preparing circular economy statements or wider sustainability strategies

  • Involvement in fee proposal development

  • Line management experience

  • Working towards Chartership (Chartered status highly advantageous)

Company Benefits

  • Supportive, people-focused working culture with strong professional development pathways

  • Opportunity to work on innovative, high-profile, industry-leading sustainability projects

  • Regular involvement in wider industry initiatives and technical excellence groups

  • Flexible working arrangements, including progressive working patterns

  • Generous annual leave allowance

  • Private medical cover

  • Electric vehicle salary sacrifice scheme

  • Opportunities for internal progression and cross-discipline collaboration

  • Inclusive workplace environment with community groups and social events

If this role is of interest to you plaase contact Lany Warnakulasuriya from Penguin Recruitment on 01792 957386 or email lany@penguinrecruitment.co.uk

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