Senior Philanthropy Manager

Senior Philanthropy Manager
Permanent
Full time (34.5 hours), we are open to a conversation about how you work these hours 
Location: Split between home and our London Office with a minimum of one day in the office per week
Salary Range: £54,000 - £59,000

About us:
At Macmillan, we’re here to do whatever it takes to support people living with cancer. Philanthropy is central to that mission. We are now seeking an exceptional Senior Philanthropy Manager to steward and grow some of the most significant philanthropic relationships in the UK—unlocking transformational 6- and 7‑figure gifts that will change lives.

This is a rare opportunity to work at the highest levels of philanthropic partnership, collaborating closely with Macmillan’s senior leadership, Trustees, influential supporters and external networks to drive a step-change in income and impact.

You will:

• Manage and grow a targeted portfolio of high‑value prospects and donors, cultivating long‑term, strategic relationships.

• Secure new business through proactive research, networking and cross‑team collaboration.

• Develop bespoke cultivation plans and donor communications, using insight to shape your approach.

• Lead senior‑level stakeholder engagement, leveraging internal and external networks to deepen relationships and secure introductions.

• Identify influential advocates to support peer‑to‑peer fundraising and champion Macmillan’s work.

• Deliver exceptional stewardship experiences that create meaningful ‘magic moments’ for top supporters.

• Mentor colleagues and contribute to innovative major gift approaches.

• Work with teams across Macmillan to identify and shape transformational funding opportunities.

• Support leadership in engaging donors with 7‑ and 8‑figure capacity.

• Coordinate complex philanthropic projects and maintain accurate donor records.

You'll bring:

• Strong experience managing high‑value philanthropic relationships and securing 6‑ or 7‑figure gifts (or equivalent).

• Outstanding interpersonal skills, gravitas and confidence engaging senior stakeholders.

• Excellent written communication and the ability to craft compelling donor narratives.

• A track record of achieving ambitious KPIs in a fast‑paced environment.

• An entrepreneurial, solutions‑focused mindset and strong influencing skills.

• Experience working with senior leadership and navigating complex stakeholder environments.

• Strong project management skills and the ability to juggle competing priorities.

• Curiosity about the philanthropic landscape and confidence using CRM systems (ideally Raiser’s Edge).

• A collaborative, team‑oriented approach and a desire to grow within Macmillan.

What You’ll Achieve:

• Growth and development of a diverse portfolio of high‑value donors and prospects.

• A strong internal and external network that accelerates philanthropic opportunities.

• Unique, high‑impact engagement moments for philanthropists.

• A meaningful contribution to a step‑change in Macmillan’s philanthropy income.

Recruitment Process 
Application deadline: Sun 25th Jan 2026
First interview dates: Early Feb (TBC)

To ensure fairness and consistency to select the best candidate for this role, all our applications are anonymised up until an interview has been confirmed. 

We are an organisation that is committed to setting candidates up for success, so we can support you to be at your best during the application or selection process, please contact Macmillan TA Team TATeam@macmillan.org.uk for advice, or a conversation on reasonable adjustments.  

We welcome applications from everyone who meet the criteria and strongly encourage individuals to apply who have a disability, impairment or health condition or individuals who identify as Black, Asian or from another minority ethnic background, as these groups are currently under-represented at Macmillan. Our Equity, Diversity and Inclusion Strategy here along with our internal employee representation body, ‘Our Voice’ and 8 Employee Network groups help us promote fairness and belonging, becoming an engaged and inclusive organisation for all our people.