Senior Development Manager
Salary £ 40-50k
Westminster, London
Vacancy listed 21/09/2026
Application deadline 09/10/2026
Details
 The CSJ is seeking a highly strategic, proactive and ambitious individual to join our busy Westminster office. As part of a small, high-performing team, you will play a key role in engaging high-net-worth donors, securing income against targets, raising the profile of our work, and helping to steward and grow our exceptional supporter base.

While previous fundraising experience would be an advantage, it is not essential. More important is that you are someone who can quickly grasp our organisation and funding model, produce compelling, high-quality written proposals, and communicate with confidence and credibility to senior and influential stakeholders.

KEY RESPONSIBILITIES

 The successful candidate will work within the Development team & take a leading role in delivering the CSJ’s fundraising strategy. Responsibilities include:

·       Increasing the number and range of donors through prospecting, donation solicitation and the securing of new relationships, with a focus on high-net-worth individuals

·       Developing and implementing strategies to secure donations from new and existing donors on a multi-year basis

·       Maintaining meticulous records of all fundraising activities in a timely manner on the CSJ’s CRM database (Salesforce)

·       Engaging on a regular basis with the CSJ’s policy and communications teams to remain informed of all ongoing and upcoming policy projects

·       Drafting high-quality fundraising proposals, impact reports and related donor facing correspondence

·       Ensuring that exceptional relationship management characterises all fundraising work and impact reporting is communicated to relevant donors

·       Representing the CSJ externally and being an ambassador for its vision, mission, and values

·       Supporting our Events team in delivering exceptional fundraising events from guest list formation to execution of events

·       Producing financial updates and analysis for the CSJ senior team

THE PERSON 

·       Proven experience in high value fundraising (working with Philanthropists, Corporates and/or Trusts and Foundations), preferably in the political and/or charitable sectors

·       Experience of engaging and influencing high-profile and/or high-net-worth individuals and organisations

·       Strong analytical skills, with the ability to understand and summarise complex public policy ideas

·       High level verbal communication and presentation skills, including experience developing high-quality pitches and proposals

·       A commitment to the CSJ’s vision, mission, and values

·       An interest in current affairs, politics and the social justice agenda

·       Meticulous attention to detail, highly organised, calm under pressure and with a high degree of personal integrity

·       A collaborative team player with initiative and a positive “can do” attitude



Notes

Please submit your CV and one-page cover letter in a pdf format by 23.59 on the 9th October 2026