Interim Financial Accountant

Mackie Myers; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A professional membership organization in Greater London seeks a Senior Accounts Assistant for a 6-month temporary role with potential for permanency. The role focuses on managing Accounts Receivable processes and assisting during a finance system transformation. Ideal candidates will have experience with Microsoft Dynamics and possess strong interpersonal skills, thriving in a high-volume environment. The position offers a day rate of around £225 with hybrid working options.

Benefits

Day rate of around £225

Potential for permanent position

Hybrid working

Qualifications

• Strong background in Accounts Receivable and reconciliations.
• Proven experience handling high transaction volumes.
• Confident and adaptable with the ability to work independently.

Responsibilities

• Manage Accounts Receivable processes, including invoicing and debt chasing.
• Handle high volumes of transactions across various platforms.
• Support reconciliations for bank accounts and payment providers.

Skills

Accounts Receivable

Finance systems experience

Microsoft Dynamics

Reconciliations

Education

AAT qualification or working towards it

Tools

Microsoft Dynamics

Job description

Overview

Senior Accounts Assistant (Temporary, with potential permanent opportunity).

A hands-on Senior Accounts Assistant role with a focus on Accounts Receivable and reconciliations. Ideal for someone with strong systems experience (Microsoft Dynamics / Business Central) who thrives in a busy, high-volume environment. Applicants should be confident, personable, and able to hit the ground running with minimal handholding.

Our Client: A professional membership body with over 300 employees, offering qualifications, training, and examinations to its members. They operate with a collaborative culture and are currently undergoing finance system transformation.

The Role

This is a 6-month temporary role (starting 20 October) to support the finance team during a busy transition period, with potential for a permanent role.

• Managing Accounts Receivable processes, including invoicing, debt chasing and reconciliations
• Handling high volumes of transactions across multiple payment platforms
• Supporting reconciliations for bank accounts and payment providers
• Assisting with refunds and allocations, ensuring accuracy and compliance
• Working with Microsoft Dynamics (F&SCM / Business Central) during a system implementation phase

The Successful Candidate

• Strong background in AR and reconciliations with proven experience handling volume
• Skilled in using finance systems, ideally Microsoft Dynamics or similar
• AAT qualified or working towards qualification preferred
• Confident, adaptable, and able to work with minimal supervision
• Personable, collaborative, and able to fit quickly into an established team

What’s on offer?

• Day rate of around £225 umbrella (range available depending on experience)
• Immediate start with a two-week handover before parental leave cover begins
• 6-month contract with potential for a permanent role (perm salary c.£35k + excellent benefits)
• Hybrid working (c.1-2 days per week in the London office)
• Opportunity to join a respected membership organisation during a period of finance transformation

Short description (for MM website): Temporary Senior Accounts Assistant (6 months) joined a professional membership body to support AR, reconciliations, and finance operations during a system transformation.