Interim Senior Finance Officer - #2185939

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.