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Percival are excited to be working with FILE Foundation to help them recruit for a new Head of Marketing and Communications to join their vibrant team.


The Foundation for International Law for the Environment (FILE) is a not-for-profit philanthropic organisation working to accelerate legal action on climate change. Through grant-making and in-house legal expertise, we empower our partners to deliver strategic, innovative legal interventions and we support lawyers in their own countries to bring their own cases.


Legal action can unlock the systemic changes in finance, policy and social systems needed to

protect all of us from climate change. The power of the law is both direct (changing policy and

practice) and indirect (signalling the wider shifts taking place across these systems).


Job Title: Lead Strategist

Contract: Fixed Term Maternity Cover

Salary: £70,000 - £80,000

Working Pattern: Full-time, or Pro Rata

Location: London or the Netherlands


This is a senior, strategy-led maternity cover role focused on accelerating legal action to reduce global methane emissions. You will shape and influence innovative funding strategies, convene key stakeholders across the legal and climate ecosystem, and help direct philanthropic investment toward high-impact systemic change initiatives. Acting as a connector between legal experts, civil society, and funders, you will strengthen collaboration and build momentum around practical, scalable solutions. In doing so, you will play a visible and influential role in advancing meaningful progress within a fast-moving global climate agenda.


To be successful in this role, you will:

  • Experience developing strategies that support legal action on methane mitigation.
  • Strong analytical skills to identify high-impact opportunities in complex systems.
  • Proven ability to coordinate networks, workshops, or multi-stakeholder convenings.
  • Ability to produce clear research insights and strategic recommendations.
  • Experience engaging senior stakeholders and philanthropic partners effectively.


Application deadline: As soon as possible

Interview date: As soon as possible


We value diversity and know how important it is for charities to fairly represent their beneficiaries, therefore we encourage applicants from all backgrounds to apply.


The team at Percival are committed to your journey as a candidate and will provide any necessary support throughout the application process. If you need any assistance or require any reasonable adjustments throughout the process, please don’t hesitate to contact Sam at samuel.hall@percival.org


To apply, simply submit your CV. Should you meet the requirements, we will provide you with the full job description and arrange a call or meeting to provide further information about the next steps. Please note you may be required to complete a cover letter in order to submit a full application. To fully understand what we will do with your data, please review our policy https://www.percival.org/privacy


We are looking forward to connecting with you soon.