Accounts Payable Specialist (Interim)

Our Company
At Quantum, we connect global brands with high-intent consumers. We turn intent into action and complexity into clarity.

Our Mission is clear, to help smarter, faster buying decisions. Our vision, to be the world’s most used digital comparison service, delivering value and simplicity to millions.

We drive growth through data-driven affiliate marketing built for performance from day one. Every campaign is measurable, optimised in real time, and designed to scale.

With in-house tech, full-stack analytics, and a compliance-first mindset, we give our partners an edge. We drive confident decisions and growth in regulated and high-growth sectors. We’ve helped ambitious brands grow faster, smarter, and globally.

The Role

Our Finance team is growing! We’re looking for an Accounts Payable Specialist to join our team in London.

In this role you will own AP and the AP-related month-end close across DA, TMS and WZD. Keep payments accurate, on time and approved, and use AI to cut manual work.

Key Responsibilities

- Run the weekly supplier payment run: prepare the file, check for duplicates, verify bank details against Xero, and follow the approval timetable
- Process and code invoices by entity, department and activity, check VAT, and get budget-holder approval
- Maintain supplier records and handle supplier queries
- Handle employee expenses and Moss, Amex and Lloyds card transactions
- Do the AP side of month-end:

bank and Moss reconciliations
- intercompany reconciliations
- network and marketing cost reconciliations
- capex and depreciation journals
- the aged payables report and AP days

- Support audit, write SOPs, and automate repetitive tasks

Problems they will solve

- Payment accuracy: no duplicates or wrong bank details
- Reliable month-end: tasks closed on time, not corrected afterwards
- Undocumented processes: they will write the missing SOPs
- Manual workload: AI and automation reduce repetitive work

About You

Essential

- Comprehensive, hands-on multi-entity AP experience, covering the full cycle from invoice to payment run
- Xero, strong Excel, and VAT and multi-currency payments
- Reconciliations and month-end deadlines
- Strong attention to detail, and raises issues early
- Confident using AI tools (Claude or similar) day to day: drafting supplier emails, checking invoices, building spreadsheet formulas and documenting processes
- Willing to spot repetitive tasks and automate them, for example with Google Sheets, Apps Script or Moss
- You thrive when working as part of a team
- Comfortable in a fast-paced environment
- Last but not least, you’ll have no ego!

Desirable

- Experience with Moss, Tableau, Lloyds online banking
- Industry experience Digital, marketing or affiliate sector experience
- Experience with an audit

What You’ll Get

- Private Health Care (Vitality)
- Hybrid Working (3 days in office)
- Travel Insurance
- Competitive Base Salary
- Company Bonus Scheme
- Paid for AI Subscription (Claude / ChatGPT / Gemini)
- Market-Leading Training Programme
- Recognition & Reward Scheme
- Annual Company Conference
- Regular Happy Hours & Team Lunches
- Free Coffee, Drinks & Snacks

What’s the next step?

Our hiring process ensures we're recruiting the right people for the role. We ensure that people are as suitable for us as we are for them.

If you like the sound of what we're all about at Quantum and want to join a team where you can make an impact, please apply or contact us at [email protected].