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Senior Sustainability Consultant

 Cardiff, Wales

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Cardiff, Wales 109 The Print Rooms London SE1 0LH Mattinson Partnership Senior Sustainability Consultant Apply Now

Reference #: 22943_1752748729
Location: Cardiff, Wales
Salary: £42000 - £49000 per annum
Sector: Sustainability & Energy
Type: Permanent
Posted On: 17/07/2025

Job Overview
A leading consultancy is seeking a Senior Sustainability Consultant to join its team in Cardiff or Bristol. This role offers an exciting opportunity to contribute to impactful sustainability work across a wide range of sectors and projects.

The successful candidate will join a national sustainability group known for its innovative, practical, and forward-thinking approach to sustainable development in the built environment. The team works across all phases of design and construction, delivering strategies that enhance environmental performance and wellbeing.

Key Responsibilities

  • Develop holistic sustainability strategies for building and infrastructure projects.

  • Lead environmental and wellbeing assessments such as BREEAM, WELL, HQM, and similar frameworks.

  • Deliver technical modelling and assessments, including:

    • Energy modelling using IES VE

    • Embodied and whole life carbon assessments using One Click LCA

    • Circular economy evaluations

    • Building performance simulations (operational energy, overheating, etc.)

  • Advise clients on energy and sustainability strategies for both new and existing developments.

  • Mentor junior consultants on project delivery, technical skills, and planning.

  • Contribute to research and innovation initiatives within the technical team.

  • Engage in industry research, author guidance documents, and support thought leadership efforts.

Candidate Profile

Ideal candidates will have experience and knowledge in several of the following areas:

  • Energy modelling experience using IES VE, and other building performance tools (e.g., ApacheHVAC, Part L compliance, NABERS, Passivhaus)

  • Environmental certification schemes (e.g., BREEAM, WELL, Fitwel)

  • Preparation of sustainability-related planning documents (e.g., energy strategies, sustainability statements, whole life carbon assessments)

  • Environmental Impact Assessments with a focus on climate resilience and carbon emissions

  • Whole life carbon and embodied carbon experience using One Click LCA

  • Net zero carbon strategies and circular economy consulting

  • Relevant experience in the built environment sector, preferably in sustainability or engineering consultancy

  • Degree in engineering, environmental science, or a related field

This opportunity offers a generous package and extensive benefits. There are multiple routes for progression, made possible through support and training, helping to develop you in your career.

If this is of interest send a message to Ethan williams on linkedIn or reach out on 02079602589.

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London Wildlife Trust.

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Royal Town Planning Institute.

The RTPI represents planning professionals in the UK and Ireland and aims to encourage the development of vibrant and prosperous places and communities. Our Senior Consultant Freddie enthusiastically attends the annual Planning Convention, and we host several events throughout the year to show our support, including drinks networking and a literal pub quiz. We also keep in close contact with our friends down under, at the Planning Institute Australia and New Zealand Planning Institute. In addition, we sponsor the London Planning Summit, an event designed to address the biggest challenges facing the industry. This is our opportunity to stay on top of the latest changes in town planning by meeting with other key professionals in the sector, while celebrating our achievements.



Land Securities Group Plc.

One of our clients, LandSec, are the clever people behind Girls Can Do It Too, an initiative designed to encourage girls to consider a career in construction. Currently, only 11% of the construction workforce are female, and LandSec are attempting to increase this number by providing education and engagement projects and workshops for girls aged 11-13. Featuring workshops on demolition and tower building, as well as challenging the girls to design a planning project of their own (with a focus on budgeting and environmental considerations), LandSec have proven their dedication to addressing the need for diversity in this very male dominated industry. Ruth assists the project by sharing her fascinating insights into the industry and is even on the project judging panel!



Urban Land Institute.

In partnership with Urban Land Institute we are able to play an imperative role in creating a larger and more diverse pool of candidates within the planning & property professions. Working in schools we take part in the Urban Plan Educational workshops programme, which has now reached more than 2,500 pupils in 100 schools since its launch. Alongside more than 200 industry volunteers engaged across the country, we provide invaluable industry & careers advice to students while guiding them through their workshops and helping judge their presentations.



Carbon Footprint.

Carbon FootprintTM works to help organisations offset their CO2 through tree planting and community projects worldwide. By partnering with Carbon FootprintTM, we have planted native trees and shrubs such as Whitebeam, Hazel, Field Maple, Silver Birch, Rowan, Beech, Blackthorn, Holly and Dog Rose to create a Mattinson Forest that spreads across South East England. Carbon FootprintTM work in conjunction with the Florestal Santa Maria Project (FSM-Redd Project), designed to reduce deforestation in the Amazonian Rainforest. So, for every tree we plant in the UK we guarantee a tonne of CO₂ offset in Brazil too. Carbon FootprintTM have allowed us to not only do our bit for the environment but also commemorate moments of growth for our clients and candidates.