Principal Sustainability Consultant – Carbon

Job Title: Principal Sustainability Consultant - Carbon
Location: London
Job Type: Permanent
Salary: £55,000 - £70,000

Key Responsibilities:

• Lead the delivery of whole life and embodied carbon assessments for large, complex projects using OneClick LCA and other modelling tools.
• Develop and implement net zero and decarbonisation strategies, including carbon reduction pathways aligned with client and regulatory targets.
• Oversee carbon footprint assessments and GHG accounting (Scopes 1, 2, and 3) for organisations, assets, and programmes.
• Provide technical leadership on BREEAM Infrastructure and related sustainability frameworks from design through to post-construction stages.
• Engage and influence senior stakeholders to embed low-carbon principles into project design, procurement, and operational decision-making.
• Lead proposal development, fee bids, and presentations, driving business development and securing new work.
• Build and manage key client relationships, acting as a trusted advisor on carbon and sustainability matters.
• Mentor and coordinate cross-functional teams, ensuring high-quality deliverables and consistent technical standards.

Key Requirements:

• Extensive experience in sustainability consulting with a strong focus on whole life carbon and embodied carbon analysis.
• Proven track record of leading complex LCA studies and embodied carbon assessments for infrastructure and/or built environment projects.
• Advanced user of OneClick LCA or similar LCA software, with strong quantitative modelling and data analysis skills.
• Demonstrable experience in developing and delivering net zero strategies and carbon reduction roadmaps.
• Strong understanding of GHG accounting standards and methodologies, including Scopes 1, 2, and 3.
• Experience working with BREEAM Infrastructure or equivalent sustainability rating systems from design to post-construction.
• Evidence of effective stakeholder engagement and change management, including influencing senior decision-makers.
• Experience leading multidisciplinary project teams and providing technical direction on carbon-related workstreams.

Desirable Skills:

• Experience in integrating carbon considerations into design optimisation, value engineering, and procurement strategies.
• Familiarity with broader sustainability topics such as climate risk, resilience, and circular economy.
• Experience in portfolio-level carbon management and target setting (e.g. SBTi, net zero frameworks).
• Established network within the sustainability, infrastructure, or built environment sectors.
• Experience contributing to thought leadership, guidance documents, or industry working groups on carbon.