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Sustainability Manager, Carbon Accounting & Performance

AIG • United Kingdom • Added on Nov 3, 2026
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This role owns AIG’s operational greenhouse gas inventory and carbon accounting program, from setting boundaries and methods to checking results and maintaining records for reporting and assurance. It also turns sustainability performance data into measures and business insights, while coordinating projects across a global organisation.

The work connects climate targets with the practical realities of a large insurance group: reliable emissions data, changing disclosure rules and decisions about operational decarbonisation. By linking measurement to performance and communicating findings clearly, the role can help AIG assess progress and decide where further action is needed.

This suits someone who combines detailed GHG accounting knowledge with sound judgement, clear communication and the confidence to work across functions. Experience with frameworks such as the GHG Protocol, ISSB and SBTi, alongside carbon platforms or reporting tools, would be relevant to the remit.

Job FAQs

What are the main missions and responsibilities of this role?

The role leads AIG’s annual operational emissions inventory, including its boundaries, methodology, assumptions and emissions factors. It checks results for data quality and year-over-year changes, maintains supporting documentation, and manages the carbon accounting process and platform. It also tracks sustainability KPIs, evaluates programs against goals and benchmarks, and supports climate strategy and decarbonisation priorities. A further part of the remit is coordinating cross-functional projects and translating technical findings into clear recommendations and communications.

Key learning opportunities for this job

The role could deepen expertise in corporate GHG accounting, including inventory design, emissions factors, data validation and assurance readiness. Exposure to the GHG Protocol, ISSB and SBTi would build understanding of how standards and disclosure requirements affect a global company. Working with carbon accounting and reporting platforms, sustainability teams and business units may also develop skills in performance measurement, renewable energy procurement and program evaluation. The posting does not specify formal training or certifications, so development is likely to come mainly through the work and collaboration across AIG.

How does the ideal candidate look like (experience, skills)?

The posting seeks at least five years of corporate sustainability experience and a relevant degree in sustainability, an environmental field, business or a related discipline. Strong knowledge of GHG accounting, reporting requirements and decarbonisation, including renewable energy procurement, is central. A strong candidate would be comfortable with the GHG Protocol and familiar with ISSB and SBTi. Experience with sustainability data systems or carbon accounting platforms is useful, with Watershed and Workiva specifically preferred. Analytical ability, project management and clear communication are important for working with stakeholders across a global organisation.

Advice to stand out and make a successful application

Show how you have owned or materially contributed to a corporate GHG inventory, and describe the boundaries, methods, data checks and documentation involved. Give a specific example of how you handled uncertain or changing data and made the resulting inventory suitable for external reporting or assurance. Connect technical experience to business outcomes: explain how you used emissions data, KPIs or climate pathways to inform decisions. Name relevant experience with the GHG Protocol, ISSB, SBTi, Watershed or Workiva accurately, and prepare to discuss how you communicate findings to varied stakeholders.

What aspects of the company's sustainability is this role likely to focus on?

The clearest focus is AIG’s operational carbon footprint: measuring emissions consistently, improving data quality and using performance information to support climate strategy and decarbonisation. The role also connects operational results with external reporting and evolving disclosure requirements. It may support work on renewable energy procurement and emissions pathways, although the posting does not specify particular projects or targets. Employee sustainability groups and engagement communications add an internal participation element to the remit.

What are the main challenges someone in this role might face?

A likely challenge is collecting comparable, reliable emissions data across a large global organisation while documenting assumptions and changes clearly enough for reporting and assurance. The role must balance methodological consistency with differences in data sources and business processes. Keeping pace with evolving accounting standards and disclosure rules may also require translating technical changes into timely action. Another challenge is connecting performance measures and climate priorities to business decisions while coordinating teams with different responsibilities.

How could a typical day look like for someone in this position?

A day could include reviewing emissions data and investigating unusual year-over-year movements, updating inventory documentation, or discussing data quality with internal teams and platform partners. The role may also involve interpreting a reporting requirement or preparing sustainability KPIs and performance insights. Other days could focus on climate strategy, cross-functional project delivery, or communications for working groups and employee sustainability networks. The balance would likely shift with annual inventory and disclosure timelines.

What are the opportunities for professional growth and development in this role?

The role could build a path toward broader sustainability leadership by combining technical carbon accounting with climate strategy, performance management and global stakeholder work. It may also provide depth in disclosure standards, assurance preparation and sustainability data systems. Leading cross-functional programs could develop experience useful for future roles in corporate sustainability, ESG reporting or climate performance. The posting does not define a formal promotion route, so progression would depend on AIG’s structure and the scope taken on over time.

The main stakeholders you might be interacting with

Likely partners include AIG’s sustainability team, business units and functions that supply operational emissions data. Finance, legal, regulatory and reporting colleagues may be involved in data controls, disclosure requirements and assurance readiness. The role also works with external platform or service partners, while supporting sustainability working groups, business champions and the Employee Sustainability Network. Senior leaders may receive performance insights and recommendations for climate priorities.

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