Interim Senior Finance Officer

Our Client

Mackie Myers is partnering with a leading international. As the organisation continues to grow its global reach and impact, they are seeking a Senior Finance Officer to join their finance team and take ownership of day-to-day financial operations.

The Role

This is an hands-on interim Senior Finance Officer position focused primarily on transactional finance, payroll and month-end processes. Working closely with the wider finance team, you will play a key role in ensuring the smooth running of the organisation's financial operations across accounts payable, accounts receivable, reconciliations and payroll. Key responsibilities include:
  • Managing the end-to-end accounts payable process, including supplier invoices, payment runs and expense claims.
  • Processing accounts receivable transactions and ensuring income is accurately recorded.
  • Completing monthly bank reconciliations and maintaining accurate cash records.
  • Maintaining and reconciling key balance sheet control accounts.
  • Processing journals and supporting month-end close activities.
  • Administering and processing the monthly payroll.
  • Maintaining accurate financial records and ledger integrity.
  • Supporting the management of restricted and unrestricted funds.
  • Responding to finance queries from colleagues and external stakeholders.
  • Contributing to process improvements and ensuring strong financial controls are maintained.
The Successful Candidate
  • Previous experience in a Finance Officer, Senior Finance Officer, Assistant Accountant or Bookkeeper role.
  • Strong accounts payable and accounts receivable experience.
  • Experience processing payroll and payroll journals.
  • Proven experience completing bank reconciliations and maintaining ledgers.
  • A sound understanding of double-entry bookkeeping and core accounting principles.
  • Experience supporting month-end processes and posting journals.
  • Confident working independently and able to identify when to seek guidance.
  • Previous charity sector experience is essential.
  • Desirable: experience using NetSuite.
What's on Offer?
  • Circa. £300 per day
  • Part-time options are available
  • Opportunity to join a highly respected international charity making a genuine global impact.
  • Broad, hands-on finance role with exposure to all aspects of transactional finance.
  • Supportive team environment with a structured handover from the current postholder.
  • Hybrid working with 1-2 days per week in the London office.
  • Flexible working arrangements and the opportunity to contribute to a mission-driven organisation.
Our Commitment to Equality, Diversity & Inclusion We believe diverse perspectives strengthen organisations and the communities they serve. Applications are welcomed from all backgrounds and lived experiences.