Accounts and Supply Chain Assistant

Infinitesima; Abingdon; On-site; GBP 26,000 - 36,000; Full time

Job summary

Infinitesima is seeking an Accounts & Supply Chain Administrator in Abingdon. You will own supplier invoicing, support purchasing, inventory and business systems, and work at the heart of Finance and Supply Chain.

The role blends accounts payable with procurement activities in a growing high-technology environment. You’ll gain exposure to purchasing, invoicing and finance processes while ensuring accuracy and timely payments.

Qualifications

• Experience in accounts payable, purchasing administration or finance support.
• Strong numerical and administrative skills in a structured environment.
• Familiarity with ERP systems and purchase-to-pay processes.
• Ability to follow processes consistently and accurately.
• Ability to work independently and manage workload.
• Excellent communication and organisational skills.
• Comfort with Excel or spreadsheets and data entry.

Responsibilities

• Match supplier invoices to purchase orders and goods receipts.
• Verify invoice accuracy before payment.
• Prepare and maintain verified payment lists for Finance.
• Post and code invoices in Xero and other ERP systems.
• Investigate discrepancies with internal stakeholders.
• Maintain accurate records of invoices processed.
• Serve as a link between Finance and Supply Chain teams.
• Support process improvements as the business scales.

Skills

Excel skills

Numerical accuracy

Process driven

Independent worker

Organizational skills

Purchasing & invoicing

Accounts payable

ERP familiarity

Purchase orders

Tools

Xero

WinMan

SAP

Job description

Looking for a role where finance meets operations?

AtInfinitesima,we're rebuilding advanced metrology systems used by the world's leading semiconductor manufacturers to produce next-generation computer chips. Our technology helps enable the devices peoplerelyon every day, from smartphones to AI infrastructure.

As we continue to grow,we'relooking for an Accounts & Supply Chain Administrator to join our team in Abingdon. This is more than a typical accounts support role.You'llsit at the heart of our Finance and Supply Chain teams, ensuring supplier invoices are processed accurately while gaining exposure topurchasing, inventory management and business systems.

What you'll be doing

You'lltake ownership of a key business process that keeps our suppliers paid accurately and on time:

• Match supplier invoices against approved purchase orders and goods receipts
• Verify invoice accuracy before payment
• Prepare andmaintainverified payment lists for Finance
• Post and code invoices within Xero
• Investigate and resolve discrepancies with internal stakeholders
• Maintainaccuraterecords of invoices processed
• Act as a key link between the Finance and Supply Chain teams
• Support process improvements as the business continues to scale

What we're looking for

You might already have experience within accounts payable,purchasingadministration or finance support. Equally, you could be someone with strong numerical and administrative skills who enjoys working in a structured, process-driven environment.

• Strong Microsoft Excel or spreadsheet skills
• Excellent numerical accuracy and attention to detail
• Able to follow processes consistently and accurately
• Comfortable managing your workload independently
• Strong organisational and communication skills
• Keen to learn aboutpurchasing, invoicing and finance processes
• Previousexperience within accounts payable, finance administration or purchasing
• Familiarity with accounting or ERP systems such as Xero,WinManor SAP
• Understanding of purchase orders, goods receipting or invoice processing

This is an exciting time to join.We'recurrently reviewing and modernising our ERP systems, giving you the opportunity to play a part in a significant business transformation and gain experience that goes far beyond a traditional Accounts Assistant role.

You'llbenefitfrom:

• Exposure to both Finance and Supply Chain functions
• The opportunity to help shape future processes
• Hands-on involvement in business systems transformation
• A collaborative and supportive team environment
• The chance to work within a growing high-technology business at the forefront of semiconductor innovation

Interested?

Ifyou'reorganised, detail-focused and enjoy bringing order to complex processes,we'dlove to hear from you.

A bit about us:

Infinitesimais a privately owned company founded in 2001, as a spin-out of the University of Bristol, by CTO Professor Andrew Humphris. Our dynamic team of scientists and engineers is focussed on enabling the next generation of semiconductor devices through delivery of innovative products to customers around the world.

Our strength lies in the varied perspectives that come fromdifferent cultures, experiences, and identities. We believe that true innovation is fuelled by collaboration, locally and globally. We strive to foster an environment where everyone can contribute meaningfully and thrive. If you require adjustments to take part in the recruitment process, please let us know,we’ll do our best to support you.

Note to recruitment agencies:InfinitesimaLtd only works with approved agencies and does not accept unsolicited agency CVs. Please do notsubmitcandidate details in response to this advert, or to anyInfinitesimaLtd employees.InfinitesimaLtd is not responsible for any fees related to unsolicited CVs.

A note on how we run interviews:

We use AI only to transcribe our interviews so we can focus fully on you instead of scribbling notes. The AI does not take part in any decision making at any stage. All hiring decisions are made by real humans based on the conversation we have with you.

Location and work pattern:

All ofour new UK team members are asked to work on site here at Abingdon during their first three months with us. We offer flexible, hybrid working where possible upon completion of probation.

This vacancy is not eligible for VISA sponsorship.

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Do you have a UK passport? * Select...

Description: We welcome applicants from all backgrounds and aim to create a fair, supportive recruitment process.
To keep things clear, this role needs someone who already has the permanent right to work in the UK.
If a role calls for unique expertise that’s hard to find locally, we may explore sponsorship options — though this is uncommon.

If you do not have a UK passport, please tell us about your SPECIFIC right to work details including the type of VISA you have, SHAREPOINT code and expiry date: *

Regretfully, we very rarely sponsor VISA's due to the length of time and cost of sponsorship per application.

Your salary expectation? *

The information that you provide will be used to negotiate your offer if successful.

Are you in commuting distance for our site in Abingdon, Oxfordshire (OX14 1RG)?If not, are you considering relocating for the role? *