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Mozilla Corporation is seeking an experienced Sustainability Manager to provide temporary coverage for about 7 months during a parental leave. This is a high-impact, hands-on role designed to ensure continuity and momentum across Mozilla’s core sustainability programs. The Sustainability Team serves as a trusted guide to Mozillians in building a more sustainable internet experience for all.
Job Responsibility:
Serve as the day-to-day owner of Mozilla’s sustainability program during the leave period, ensuring continuity, clear decision-making, and progress across priority initiatives
Lead completion of Mozilla’s 2025 carbon footprint, working closely with our carbon accounting partner and internal data owners to manage timelines, data quality assurance, and emissions analysis
Advance Mozilla’s net zero commitments by convening and supporting cross-functional working groups focused on high-impact Scope 3 categories, including Purchased Goods & Services and Business Travel, and helping pilot and scale decarbonization solutions
Monitor and support compliance readiness for climate-related regulation, including tracking the status of California SB 261 and coordinating timely publication of Mozilla’s climate-related financial risk disclosure if required
Support preparation of Mozilla’s 2026 Social and Environmental Impact (SEI) Fact Sheet, coordinating inputs, tracking progress, and ensuring alignment with Mozilla’s strategy and external commitments
Drive employee engagement and internal capability-building by leading Mozilla’s Environmental Champions program, supporting Earth Week 2026, and developing practical guidance to help teams make more sustainable choices
Represent Mozilla externally through participation in sustainability-focused memberships and forums (e.g., BSR, BC3), staying informed on emerging best practices, policy trends, and peer activity
Communicate clearly and effectively with senior stakeholders, translating complex sustainability topics into concise, decision-ready insights and recommendations
Requirements:
7+ years of experience in sustainability, climate strategy, or ESG-related roles, either in-house or in a consulting environment, with demonstrated ownership of multi-stream projects
Strong technical grounding in greenhouse gas accounting, including the GHG Protocol (Scopes 1, 2, and 3), and hands-on experience managing or contributing to organization-wide carbon footprint measurements
Experience advancing decarbonization strategies, particularly for Scope 3 emissions, and working with cross-functional partners to design and implement practical solutions
Familiarity with sustainability reporting and climate-related regulation, such as TCFD-aligned disclosures, CA SB 261, CSRD, or similar frameworks, and comfort operating amid regulatory uncertainty
Working knowledge of corporate net zero commitments and science-based targets, including the Science Based Targets initiative
Proven ability to lead through influence, bringing together stakeholders across functions, navigating ambiguity, and maintaining momentum on complex initiatives without direct authority
Excellent communication skills, including experience engaging executive audiences and translating technical concepts into clear, actionable narratives
A strong service and collaboration mindset, with enthusiasm for employee engagement, internal education, and building shared ownership of sustainability goals
Nice to have:
Experience in the technology sector or similarly complex, global organizations
What we offer:
Flexible work environment (majority of Mozillians work remotely)
Industry-leading paid parental leave (up to 26 weeks of fully paid leave for childbearing parents and up to 12 weeks for non-childbearing parents)
Reimbursement for professional development (up to $3,000/year)
A work setup including the latest hardware and software of your choice