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Software Engineer II, Backend (Card)

Affirm - Remote - Remote - posted 2026-10-16

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Salary: EUR 73,000 - 109,000 / annual

Affirm is seeking a Software Engineer II, Backend to join the Card team within the Direct to Consumer organization. The Card team develops high-quality, scalable, and flexible platforms that enable transparent financing for users purchasing with Affirm's card products. In this role, you will play a critical part in developing complex backend systems that power a seamless checkout experience. You'll work on the in-app experience of Affirm Card products as part of a full-stack team of backend and mobile engineers, collaborating closely with product, design, and analytics teams. Key responsibilities include: - Breaking down larger projects into individual tasks and delivering them in multiple phases with support from your tech lead and manager - Collaborating with product management, design, and analytics during ideation, articulating technical constraints, and partnering on decisions that balance risks and trade-offs - Supporting operations and availability of team artifacts by creating and monitoring metrics, escalating issues as needed, and participating in on-call rotations - Contributing to team community through growth and development activities, including participation in the interview process - On-call rotation is a requirement for this role Requirements: - 2+ years of experience as a software engineer - Experience designing, developing, and launching backend systems; proficiency in Python or Kotlin - Familiarity with distributed systems building blocks and technologies such as AWS, MySQL, and Kubernetes - Ability to write high-quality, easily understood code - Comfortable navigating large codebases, debugging others' code, and providing constructive code review feedback - Demonstrated ability to translate business scenarios into solutions that interact with multiple software components, executing with clear, well-tested, and extensible code - Proactive approach to personal growth, seeking feedback from team, manager, and stakeholders - Strong verbal and written communication skills supporting effective collaboration with global engineering teams Note: Visa sponsorship is available, but candidates must be based in Spain for this role.

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