Senior Software Engineer, Back-end (Fraud)

Affirm · IT

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Full Time308,000 zł - 428,000 zł per yearPosted Aug 18, 2026

Source: Affirm

AT A GLANCE
Eligibility
Not available
Category
IT
Salary
308,000 zł - 428,000 zł per year
Employment
Full Time
Experience
Senior
Posted
Aug 18, 2026

This role’s source listing does not include Hungary as an eligible location.

Affirm is seeking a Senior Software Engineer for their Fraud Engineering team to work fully remotely within Poland.

You will design real-time fraud decisioning services and APIs in Python or Kotlin to support Affirm's international expansion. The role involves close collaboration with North American stakeholders, integrating regional risk vendors, and evolving internal platform tooling to enable rapid market launches.

Why You’ll Love This Role

Remote Poland
308,000 Zł - 428,000 zł annual salary
Senior level role
Fintech and fraud prevention focus
Comprehensive healthcare and wellness benefits

What You’ll Bring

5+ Years of experience building backend systems at scale using Python or Kotlin
Experience with distributed systems and infrastructure using AWS, MySQL/PostgreSQL, and Kubernetes
Strong system design skills and track record of delivering maintainable services
Proficiency in SQL and working with data-rich environments
Strong written and verbal communication skills for distributed teams
Ability to direct and orchestrate AI-driven engineering tools

What You’ll Get

Competitive paid time off and public holidays
Comprehensive private healthcare through Lux Med Platinum
MultiSport card
Learning and development programs
Mental well-being support through Lyra
Financial well-being support through Northstar
Monthly tech and wellbeing stipend up to 1390 zł

About the Company

Affirm is a financial technology company focused on providing transparent credit products, including buy now, pay later solutions, without hidden fees. The company operates globally to support merchants and consumers through advanced fraud detection and risk management systems.

Listing checked for remote eligibility · Posted Aug 18, 2026 · AffirmApply →
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