Interim Assistant Accountant

We are looking for a proactive and detail-oriented Assistant Accountant to join a busy, high-performing finance team in London on a fixed-term (maternity cover) basis. You will manage key transactional processes across accounts payable and receivable, support reconciliations, month-end and year-end activities, and ensure accuracy while meeting tight deadlines.

What you’ll do

• Administer the accounting system, maintaining user hierarchies, setting up new users, and assigning processing, reporting, and workflow rights.

• Attend promptly to general finance queries and provide support across the team.

• Reconcile fortnightly travel invoices and monthly credit card statements, obtaining approvals and uploading transactions to the accounts system.

• Raise sales invoices across all group companies and support credit control activities, keeping detailed records of all debtor communications.

• Provide cover for the other assistant accountant, including purchase ledger processing, payment runs, and bank transaction postings.

• Perform ad hoc analysis and support month-end and year-end activities.

What you’ll need

• Proven experience in accounts payable and accounts receivable within a structured, high-volume finance environment.

• Experience using a finance system, preferably Sage 200, and familiarity with payment systems and Microsoft applications.

• Hands-on experience working in nominal, sales and purchase ledgers, and cashbook.

• Ability to multi-task, work under pressure, and meet tight deadlines.

• High level of accuracy, attention to detail, and strong organisational skills.

• Effective communication skills and a collaborative, team-oriented approach.

• Qualifications such as AAT are an advantage but not essential – personality, motivation, and a strong work ethic are highly valued.

Why join?

• Fixed-term role with career progression opportunities.

• Exposure to multiple areas of finance in a professional, collaborative environment.

• Opportunity to develop skills in AP, AR, reconciliations, and reporting using modern finance systems.

• Supportive team with hybrid working options and flexible arrangements.

Don’t miss out – apply early to be considered for this exciting opportunity.