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Location: Hybrid working - Part London (E14) office-based and part home working. The post holder will work a minimum of one day a week in the office. 

Salary: £36,100 per annum 

Hours:35 hours per week 

Closing date:Monday 23 November 2026 at midnight 

Interview date:Tuesday 1 December 2026 over video on Teams 

This is a permanent role. 

Who we are looking for 

Breakthrough T1D is the UK’s leading type 1 diabetes charity, dedicated to funding research, advocating for change, and supporting the T1D community. We’re looking for a Senior Donor Stewardship Officer. 

We are looking for a passionate, highly organised and relationship-focused Senior Donor Stewardship Officer to join our growing Philanthropy team. This is a fantastic opportunity for someone who thrives on delivering exceptional donor experiences and wants to build a career in major donor fundraising. 

This is an exciting opportunity for an individual who enjoys building relationships, delivering exceptional donor stewardship and helping to develop a pipeline of future major donors in support of Breakthrough T1D's mission to cure, treat and prevent T1D. 

Experience required 

You’ll have previous experience of: 

• Donor stewardship, supporter care, events or fundraising administration. 

• Donor or customer relationship or account management. 

• Coordinating events, from planning through to on-the-day delivery. 

• Maintaining accurate records on a CRM system.

• Working with fundraising regulation, Gift Aid, data compliance and ethical fundraising principles.

• Applying GDPR with an understanding of data protection and due diligence in a fundraising context. 

About Breakthrough T1D 

Breakthrough T1D is the world’s leading charitable research funder into type 1 diabetes, improving lives until we find the cure. We are dedicated to our 400,000 strong type 1 community in the UK and work closely with our international affiliates across the world, including the US, Canada and Australia. 

You will find a vibrant atmosphere and spirited team at Breakthrough T1D, always striving to make a difference to people living with type 1. 

Employee benefits 

As an employer we offer: 

• Hybrid working arrangements 

• Flexible working and will consider compressed hours 

• Generous annual leave entitlement – 25 days per year plus bank holidays for full-time staff with leave increasing after three and five years’ service 

• Health cash plan that allows you to claim for some treatments such as dental, optical and physiotherapy treatment 

• Season ticket and cycle loan 

• Pension scheme 

• Family-friendly policies – maternity, paternity, adoption and shared parental leave at enhanced rates 

• Personalised training to suit your career aspirations and professional development 

Breakthrough T1D is an equal opportunity employer, we welcome applications from all individuals regardless of race, gender, disability, religious belief, sexual orientation or age.