Senior Software Engineer, Backend (International Payments)

Affirm·Remote UK·Remote·Posted 30 October 2026

Apply with a tailored CV View on Affirm's site

About the role

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Payments International Engineering team builds and operates the systems that enable bank and card payments across Affirm’s international markets. Based in Europe, with teammates across the UK, Spain and Poland, we give customers familiar, local ways to pay, while building shared capabilities that make expansion into each new country easier. Our work spans improving existing payment experiences and building the foundations for launches in new countries. We solve challenges across currencies and local customer needs, creating reusable solutions that support Affirm’s international ambitions. We work closely with product and engineering teams across Affirm, connecting the customer experience with the financial systems behind it. We own our work from design through to production, combining the pace of international expansion with…

This is a summary of the advert. The full description and the application are on Affirm's careers site.

Apply faster with Prepper

A version of your CV tailored to this Senior Software Engineer, Backend (International Payments) role.
A cover letter written from your CV and this advert.
Prepper can fill in Affirm's application form and send it once you approve.
The application saved in your tracker, with reminders to follow up.

Start free

More roles at Affirm

Prepper is independent and not affiliated with Affirm. Roles are listed from the employer's public careers system and removed when they close.