Location
Thames21’s main office at the Guildhall, City of London; hybrid working options available.

Hours
Part Time - 21 hours per week (0.6 FTE)

Salary
£24,000 to £27,000 per annum (pro rata from £40,000 to £45,000 full time equivalent)

About the Role
Thames21 is an environmental charity working with communities to restore and care for rivers, water, and nature across London and the Thames Basin. We are seeking a results-driven and ambitious Individual Giving Manager to lead and grow our individual giving programme from the ground up. This role will deliver inspiring campaigns that boost engagement and drive unrestricted income, helping Thames21 achieve its mission. You will join a successful and ambitious fundraising team supporting the charity’s growth.

The role involves planning, establishing, and delivering individual giving campaigns to maximise unrestricted income, including major campaigns such as Christmas/end-of-year giving and Earth Raise. You will develop digital marketing campaigns across social media and e-newsletters to acquire, retain, and upgrade donors, producing high-impact, supporter-focused copy for appeals, landing pages, forms, and stewardship content. Collaboration across teams to identify opportunities and create engaging stories backed by impact data is essential.

Additional responsibilities include configuring Donorfy to support individual giving, designing personalised supporter journeys via digital channels, improving retention and upgrade rates through targeted communications, and providing stewardship for community and sports fundraising. You will also collaborate on donor and supporter stewardship events and initiatives.

Data analysis, audience research, compliance with GDPR/PECR and fundraising best practice, and liaison with Finance on acknowledgements, reporting, and Gift Aid are key components of this role. You will stay ahead of sector trends and apply new ideas to improve performance, working closely with the CRM Manager to ensure data integrity and effective segmentation.

This is a permanent role requiring occasional evening and weekend work. Thames21 offers 25 days paid annual leave pro rata plus public holidays, a flexitime system, hybrid working options, an 8% employer pension contribution, 24/7 employee assistance programme, and company laptop and mobile phone.

Experience
- Proven experience in the charity sector, ideally in a hands-on role within a small to medium organisation.
- Track record of individual giving fundraising, including developing and managing fundraising systems and processes.
- Strong knowledge of Donorfy for segmentation, stewardship, and reporting.
- Proficiency in digital fundraising platforms (e.g. JustGiving, Mailchimp), analytics tools (e.g. Google Analytics), and social media (LinkedIn, X, Instagram).
- Familiarity with direct debit and regular giving.
- Demonstrable success delivering multichannel fundraising or digital marketing campaigns and managing major appeals (e.g. Big Give).
- Familiarity with and openness to using AI to maximise impact.
- Solid understanding of GDPR, Fundraising Regulator guidance, supporter consent, and Gift Aid.
- Competent with Microsoft Office and online marketing tools.

About you
- Excellent fundraising copywriting and editing skills.
- Confident in analysing and interpreting data to inform decisions.
- Highly organised with the ability to manage multiple projects and competing deadlines.
- Proactive problem-solver, able to work independently and collaboratively.
- Comfortable working in a fast-paced, mission-driven environment.
- Able to work confidently across departments.
- Empathy and understanding of supporter motivations and behaviour.
- Understanding of and commitment to Thames21’s values and goals.

Qualifications
Not explicitly stated, but relevant experience and skills as outlined above are essential.

Desirable
- Experience negotiating and managing external suppliers (e.g. designers).
- Experience targeting diverse audiences and stakeholders.