AIG

Sustainability Manager, Carbon Accounting & Performance

In short

This role leads AIG's greenhouse gas inventory and carbon accounting program for its global operations, ensuring accurate data, governance and readiness for external reporting and assurance. It's a senior, hands-on position at a global insurance company, requiring 5+ years of corporate sustainability experience and strong knowledge of GHG Protocol, ISSB, SBTi and carbon accounting platforms like Watershed. The role is based onsite in London, full-time, and demands strong analytical, project and stakeholder management skills across a global organisation.

About the Role
Join us as a Sustainability Manager to take your career to the next level with a global market leader. This is a highly visible, hands-on role where you'll lead the company's greenhouse gas inventory and carbon accounting program for AIG's operations, ensuring accurate data, strong governance, regulatory alignment, and readiness for external reporting and assurance. The role will also track sustainability performance, support climate strategy, manage cross-functional programs, and translate technical topics into clear business insights and stakeholder communications.
Responsibilities
•Own the annual operations GHG emissions inventory, including methodology, boundaries, assumptions and emissions factors, and maintain a transparent, consistent and well-documented Inventory Management Plan that is ready for external reporting and assurance.
•Manage carbon accounting processes and platform, working with internal teams and external partners to improve data quality and efficiency.
•Review and validate inventory results, including data quality, reasonableness, year-over-year changes and significant assumptions.
•Track evolving GHG accounting standards, sustainability regulations and disclosure requirements, assessing what they mean for the business.
•Develop KPIs, dashboards and scorecards to help measure sustainability performance and inform decision-making.
•Evaluate the effectiveness of sustainability programs against business goals, stakeholder expectations and relevant industry benchmarks.
•Support climate strategy and decarbonisation priorities using credible frameworks, methodologies and emissions pathways.
•Build strong partnerships across a global organisation, translating complex sustainability topics into clear, commercially relevant insights.
•Help develop and deliver the internal and external sustainability engagement strategy, ensuring progress and story are communicated effectively.
•Guide and support Sustainability Working Groups, business champions and the Employee Sustainability Network in advancing shared priorities.
•Translate sustainability strategy and technical topics into clear, business-relevant messages, recommendations and actions.
•Lead cross-functional sustainability projects from concept through to delivery.
Requirements
•Bachelor's degree in Sustainability or Environmental-related field, Business or other discipline that aligns with corporate sustainability initiatives preferred.
•5+ years' experience within corporate sustainability.
•Strong knowledge of GHG emissions accounting, methodologies and reporting requirements, and decarbonization strategies including renewable energy procurement.
•Familiarity with frameworks and standards such as the GHG Protocol, ISSB and SBTi.
•Experience working with sustainability data, reporting tools and/or carbon accounting platforms such as Watershed or similar.
•Strong analytical skills and the ability to turn complex information into clear recommendations.
•Excellent project and stakeholder management skills, with the ability to manage multiple priorities.
•A strategic mindset combined with a willingness to be hands-on and get into the detail.
•Strong communication skills and the confidence to work with stakeholders at different levels across a global organisation.
•Knowledge of Workiva and Watershed strongly preferred.
•At AIG, in-person collaboration is valued as a vital part of the culture, so team members are asked to be primarily in the office.
Benefits
At AIG, our people are our greatest asset. The Total Rewards Program is a comprehensive benefits package that extends beyond time spent at work, offering benefits focused on health, wellbeing and financial security, as well as professional development.
About AIG
American International Group, Inc. (AIG) is a global leader in commercial and personal insurance solutions, with one of the world's most far-reaching property casualty networks. AIG invests in its people through continuous learning and development, in a culture that celebrates everyone for who they are and what they want to become, and fosters inclusion through learning, cultural awareness activities and Employee Resource Groups (ERGs) with global chapters.
Functional Area: LG - Legal, Regulatory & Gov't Affairs

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