Finance Administrator (Part-Time)
Job Type: Part-time – 3 days a week. (flexible hours)
Location: Caterham, Surrey – Hybrid after first 8 weeks.
Salary: FTE £35k = £21k Part time plus benefits.
We are delighted and excited to offer this opportunity to join an award winning and rapidly expanding tech business in the telecommunication billing sector.
As they scale up, they are seeking a part-time Finance Administrator to support day-to-day financial operations and light admin tasks across HR and ISO.
Reporting to the MD, he needs someone reliable who can take ownership of the routine finance workload - invoicing, reconciliation, VAT support, purchase ledger, credit control, payroll inputs, and general filing/admin. This is an administrative role, not a finance manager or operations role, and would be suited to an AAT Level 2–3 finance professional.
Responsibilities:
Finance Operations
* Raise monthly and ad-hoc customer invoices (through Xero).
* Carry out credit control and debtor chasing.
* Perform daily/weekly/monthly bank reconciliation in Xero.
* Process receipts, payments, direct debits and purchase invoices.
* Manage staff expenses, petty cash and credit card receipts.
* Prepare payroll inputs (starters/leavers, monthly changes, timesheets).
* Assist with quarterly VAT return preparation.
* Support month-end journals and basic management accounts tasks.
* Maintain accurate financial records for audit and compliance.
ISO 27001 Administrative Support (Light Duty)
* No prior ISO experience required — this is basic admin only.
* Upload documents, evidence and screenshots into structured ISO folders.
* Keep logs, registers and documentation organised and up to date.
* Chase internal teams for simple evidence items when needed.
* Assist with document collation for annual ISO audits.
HR Administration Support (BreatheHR)
* Straightforward admin tasks only — not HR advisory.
* Upload employee contracts, ID and right-to-work documents.
* Maintain accurate employee files in BreatheHR.
* Prepare draft employment contracts using approved templates.
* Support on-boarding admin and probation reminders.
Key Qualifications and Skills
* Experience in a finance or accounting support role.
* AAT Level 2 or Level 3 (or equivalent experience).
* Proficient with Xero.
* Strong attention to detail and well-organised.
* Comfortable owning recurring tasks within flexible working hours.
* Good Excel skills.
* (Nice to have) Experience with BreatheHR or ISO admin