Senior Accounts Assistant (part time)

Part Time, approx.

20 hours per week
£30,000 - £32,000 FTE (pro rata, part-time) + Flexibility + Supportive Environment

Are you an experienced and detail-driven Bookkeeper or Accounts Assistant who enjoys bringing structure, accuracy and calm to busy finance operations?

A growing, design-led architecture and residential build business in South East London is looking to appoint a Part-Time Bookkeeper or Senior Accounts Assistant to take ownership of the day-to-day transactional finance.

This is an in-house role, working closely with the Director, where you'll be trusted to keep the numbers accurate, the systems tidy and suppliers paid on time.

This opportunity would suit someone who genuinely enjoys running the fundamentals properly.

Processing, reconciling, tracking and maintaining clean, reliable financial records in a high-volume payment environment

Key Responsibilities

• Processing purchase invoices, bank transactions and completing bank reconciliations


• Managing accounts payable and receivable, invoicing and payment processing


• Maintaining accurate and up-to-date records in Xero, with supporting tracking in Google Sheets


• Supporting with VAT and CIS administration, including subcontractor set-up, verification and assisting with submissions


• Assisting with month-end and year-end close processes


• Liaising with suppliers, subcontractors and external accountants when required


• Providing ad hoc finance and administrative support as needed

Skills & Experience

• 2-3+ years' experience in a bookkeeping or accounts assistant role


• Strong working knowledge of Xero and confidence handling high-volume processing


• Ideally some exposure to construction, subcontractor payments and CIS


• Highly organised, detail-focused and discreet, with a strong sense of integrity


• Comfortable working independently and taking ownership of core finance tasks

This is a great opportunity for someone seeking a trusted, part-time finance role within a growing, creative business, where doing the basics well is genuinely valued.

With a flexible working pattern available (for example, three full days or shorter days spread across the week) to suit your existing responsibilities, this role allows you to create a successful work/life balance from day one.

Apply now!