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Active3mo ago

Senior Software Engineer, Back-end (Fraud)

Affirm·📍 Poland

Employment

FULL TIME

Work mode

Remote

Experience

5+ years

Salary

$384K – $576K/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. The Fraud Engineering organization builds the foundational and tactical software that enables Affirm to respond strategically to fraud - both in real time and after the transaction. Our mission is to support business growth while protecting Affirm, our buyers, and our merchants. We evaluate risk at critical decision points in the user journey, rapidly adapt to evolving fraud patterns, and equip operations teams with the tools needed to investigate and mitigate fraud at scale. We’re looking for a Senior Software Engineer to join our fully remote team based in Europe. You’ll collaborate closely with stakeholders across North America - including teams in Product, Compliance, Machine Learning, Fraud Operations, Frau

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About this listing

  • Source: Affirm's official careers site (via Greenhouse) · last confirmed on the source 2 Nov 2026
  • Posted 20 Jul 2026

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What they are looking for

Skills & requirements

pythonsqlpostgresqlmysqlawskubernetesmachine learningaikotlin

Qualification

What We Look For 5+ years of experience building backend systems at scale using 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 · Checkout

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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