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443

Office support jobs in Westminster, greater london

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Top job
Mission Without Borders, London (Hybrid)
£28,000 - £31,000 per year
Provide excellent customer service, process all income promptly, accurately and efficiently, and provide admin support to the UK team.
Posted 1 day ago Apply Now
Top job
Operation Smile UK, Battersea (Hybrid)
£41,500 per year
Seeking an experienced and enthusiastic individual to join Operation Smile UK as Senior Supporter Care Manager on a full-time basis
Posted 1 day ago Apply Now

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Institute of Race Relations, London (Hybrid)
£38,825 - £40,744 per year
The Institute of Race Relations (IRR), a small educational charity, is seeking a Finance and Organisational Support Officer, 3 days a week.
Posted today
Welcare, Bromley (Hybrid)
36,363
Do you have a passion for working with children and families? We are looking for an experienced family support worker.
Posted 1 day ago Apply Now
Closing in 7 days
Changing Markets, London (Hybrid)
£30,000 - £34,000 per year plus benefits
We're seeking someone organised, proactive & detail-oriented to support us across our projects, finances, fundraising & office operations.
Posted 1 day ago Apply Now
Closing in 4 days
Spinal Research, London (Hybrid)
£30,000 per year
Operations Coordinator at Spinal Research: support governance, HR, finance and operations in a small team working to cure paralysis.
Posted 1 week ago Apply Now
Rainbow Trust Children's Charity, England (Hybrid)
£24,000 pa + Company Car (with an approx. retail value of £23,000-26,000, taxable benefit in kind of £6-£8K) and other excellent benefits
Posted 2 days ago
Christian Aid, London (Hybrid)
£48,576 per year (plus London allowance if applicable)
Posted 3 days ago
Closing in 4 days
Inter Mediate, Westminster (Hybrid)
circa £28,000 pro rata
Seeking a part time Finance Officer for London-based peace-making charity working in some of the world’s most challenging conflicts
Posted 1 week ago Apply Now
Closing in 6 days
Link UP London, Wandsworth (Hybrid)
£28,000 per year pro rata for number of days agreed (3 or 4 per week)
Posted 2 weeks ago Apply Now
Closing in 3 days
Bardet-Biedl Syndrome UK (BBS UK), London (Hybrid)
£40,000 - £45,000 per year (Full-Time Equivalent)
Lead BBS UK’s integrated support service, helping individuals and families living with BBS access compassionate, person-centred support.
Posted 6 days ago
Sight for Surrey, Ashtead, Surrey (On-site)
£30,000 - £32,000 per year
Posted 2 days ago Apply Now
Page 1 of 30
London, Greater London (Hybrid) 3.52 miles
£28,000 - £31,000 per year
Full-time
Permanent

Actively Interviewing

This organisation is scheduling interviews as applications come in. They're ready to hire as soon as they find the right person. Don't miss your opportunity, apply now!

Job description

At Mission Without Borders UK, we are committed to delivering exceptional supporter experiences. We’re looking for a Supporter Services Administrator to play a key role in making every supporter feel valued, appreciated, and connected to our mission.

In this role, you’ll ensure the smooth and accurate processing of donations, maintain clear and friendly communication, and resolve queries promptly and effectively. Your work will help build lasting relationships with our supporters and ensure they feel connected to our mission.

You’ll be the person who makes sure every donation, whether it comes through a form, an online platform, or other channels, is processed with care and precision. You’ll also help us stay fully compliant with HMRC Gift Aid regulations and BACS Direct Debit standards, so supporters can give with confidence.

You will also serve our London based team by equipping team members to work effectively and helping build a fun, collaborative and productive culture.

We are seeking someone who brings:

· Hands-on experience processing offline and online donations across multiple channels

· Strong knowledge of Gift Aid regulations and Direct Debit compliance

· Exceptional attention to detail and problem-solving skills to keep things running smoothly

· Great communication skills and the ability to work effectively with colleagues across the organisation

· Experience using Salesforce or supporter databases to manage and track supporter interactions

· Exceptional customer service skills and experience


You’ll thrive in this role if you’re a natural collaborator who enjoys working as part of a team, loves solving challenges, and is driven by a desire to make a difference.

Mission Without Borders (MWB) is an international Christian charity working in Eastern Europe.  We operate in eighteen countries across the world with fundraising offices in twelve and field offices in Albania, Bosnia- Herzegovina, Bulgaria, Moldova, Romania, and the Ukraine. We seek to bring practical and spiritual support, enabling and encouraging people to lift themselves out of poverty, and always sharing the hope that is found in Jesus Christ.

Application resources
Organisation
Mission Without Borders View profile Organisation type Registered Charity Company size 1 - 5
Posted on: 03 June 2026
Closing date: 03 July 2026 at 16:12
Tags: Administration, Christian, Fundraising, International Development, Customer Service, Compliance / Quality, CRM, Customer support, Data Entry, Database Management, Faith-Based, Office Management

The client requests no contact from agencies or media sales.