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Active2d ago

Senior Software Engineer, Backend (International)

Affirm·📍 United Kingdom

Employment

Full-Time

Work mode

Remote

Experience

4+ years

Salary

£120K – £168K/yr

Role overview

Job description

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

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About this listing

  • Source: Affirm's official careers site (via Greenhouse) · last confirmed on the source 31 Oct 2026
  • Posted 30 Oct 2026

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Role market pulse

How Senior Software Engineer demand looks in United Kingdom

76/100 · rising

Live jobs

66

Posted 30d

48

30d movement

+182.4%

Remote share

30.3%

Salary listed

34.8%

Salary trend 1Y

Not enough history

What they are looking for

Skills & requirements

Qualification

What we look for You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin; For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law

Department · Financial Platforms - Engineering

Hiring company

Affirm

Technology

At Affirm, we believe that the financial industry works better for everyone when it’s fair, honest, and inclusive. We help people pay over time for almost anything—with no late fees or surprises. Through advanced technology and analytics that look beyond FICO, we’re able to serve a much broader population than other lenders.

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