We are seeking an experienced and strategic senior tax professional to join our global, purpose-driven organisation on a part-time basis (2–3 days per week). This is a high-impact role acting as a trusted advisor to senior leadership, ensuring that business decisions align with the organisation’s global tax strategy while maintaining compliance across multiple jurisdictions.

You will play a critical role in shaping and overseeing tax governance, strategy, and compliance in a complex international environment. The organisation operates with a non-profit ethos, making tax efficiency and responsible structuring central to maximising its global impact.

Key Responsibilities

Tax Strategy

• Develop, refine, and maintain the organisation’s global tax strategy in line with growth ambitions
• Advise senior leadership and key stakeholders to ensure decisions align with tax strategy and minimise risk
• Monitor developments in the global tax landscape and assess implications for the organisation
• Provide strategic input on acquisitions, including structuring and integration to ensure tax efficiency and compliance

Tax Governance

• Ensure governance frameworks reflect and support the tax strategy
• Contribute to subsidiary board processes, including oversight of documentation and delegated authorities
• Design and implement frameworks for identifying, reporting, and escalating tax risks
• Advise on organisational design from a tax perspective

Tax Compliance

• Oversee multinational tax compliance, including cross-border considerations and transfer pricing
• Manage the global tax compliance calendar to ensure timely filings and payments
• Review international tax returns and ensure accuracy across all entities
• Maintain oversight of tax balance sheet reconciliations and alignment with local accounting
• Provide guidance and training to finance teams on local tax requirements
• Manage relationships with external advisors across jurisdictions
• Lead responses to tax authority enquiries and audits, mitigating associated risks

About You

This role is suited to a highly capable, intellectually curious tax professional who thrives in a strategic, autonomous position. You will be comfortable operating at senior levels, translating complex tax matters into clear, practical guidance.

Essential experience and skills:

• Extensive corporate tax experience with a strong international focus
• Deep understanding of global tax principles, including permanent establishment risk and withholding taxes
• Proven ability to operate independently and manage competing priorities
• Strong analytical, research, and organisational skills
• Excellent communication skills, with the ability to simplify complex topics

Personal attributes:

• Highly organised with strong attention to detail
• Proactive and solutions-oriented mindset
• Strong stakeholder management and customer service approach
• Confident working both independently and collaboratively
• Natural leadership ability, with experience supporting and guiding colleagues
• Proficiency in MS Office (Word, Excel, Outlook)

The Opportunity

This is a unique opportunity to shape the global tax strategy of a mission-driven international organisation while working in a flexible, part-time capacity. You will collaborate with teams across multiple regions and play a key role in enabling sustainable, compliant growth.

If you are a strategic tax professional seeking a flexible, high-impact role within a global environment, we would welcome your application.