Senior Accounts Assistant needed ASAP

  • Reed
  • Newbury, Berkshire
  • Jul 27, 2026
Seasonal Accounting

Job Description

Reed Accountancy are working with a growing SME in Newbury looking for a proactive and hands-on Senior Accounts Assistant to join them on a 3-month contract. The organisation is currently undergoing a significant finance systems project, implementing Sage 200 with a planned go-live date in October.

Please note this role is full-time, 5 days in the office and you will need to be a driver to get to this location in Newbury.

Working closely with the Finance Manager, you will play a key role in supporting the finance function through this transition, helping to ensure a smooth and successful migration from existing systems.

Key Responsibilities

  • Processing and entering supplier invoices into current ERP
  • Supporting the Accounts Payable function during the Sage 200 go-live period.
  • Consolidating and preparing financial data using Excel
  • Assisting with the preparation of opening balances for the new system
  • Producing job and project analysis reports.
  • Performing balance sheet and other account reconciliations.
  • Assisting with system testing and process improvements.
  • Preparing and documenting finance processes and procedures for Sage 200.
  • Providing general support to the Finance Manager throughout the implementation project.

About You

  • Previous experience within an Assistant Accountant, Senior Accounts Assistant or similar finance role.
  • Strong Excel skills, including data manipulation and analysis. (VLOOKUPs and Pivot Tables)
  • Experience with reconciliations and transactional finance processes.
  • Comfortable working with large volumes of data and maintaining high levels of accuracy.
  • Experience supporting finance system implementations or migrations would be highly advantageous.
  • Sage 50 or 200 experience would be beneficial but is not essential.
  • Available to start at short notice ideally on first week of August

Apply ASAP if you are immediately available or on short-notice and this role aligns with your interests/experience!