86K–122K EUR / year
Senior Software Engineer, Fullstack (Repayments UX)
FullstackRemote — Spain
Published on 2026-10-27
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About this role
Build and operate customer repayment experiences that help Affirm users repay loans reliably and transparently. The role includes technical leadership, full-stack delivery, and operational ownership in a distributed European team.
About the company
Affirm offers buy now, pay later financing that lets consumers split purchases into transparent installment payments at checkout. It partners with merchants to provide flexible credit options without late fees.
The team
Repayment UX Engineering team
Stack
React NativeReactVuePythonKotlin
What you'll do
- Own and deliver quarterly team goals, guiding engineers through ambiguous problems.
- Collaborate with product, design, and analytics on ideas, technical constraints, risks, and trade-offs.
- Identify and lead solutions to project, process, technology, and business issues.
- Monitor metrics and support availability, on-call, and keep-the-lights-on work.
- Improve code review and design standards; share practices through writing and tech talks.
- Provide feedback and guidance to develop teammates.
What we're looking for
- 4+ years developing and architecting mobile applications.
- Experience shipping web applications using React, Vue, or similar declarative UI frameworks.
- Experience designing, developing, and launching backend systems; proficiency in Python or Kotlin.
- Can define technical plans for significant features or system components and produce clear, extensible designs.
- Can safely make significant changes in a large codebase.
- Strong written and verbal communication skills for global collaboration.
Nice to have
- React Native experience.
- Experience with declarative mobile UI frameworks.
Benefits
- 100% subsidized medical, dental, and vision coverage for employees and dependents.
- Monthly stipends for technology, food, lifestyle, health, and wellness.
- Flexible time off and generous holiday calendars.
- Wellness days to recharge.
- Learning and development programs.
- Parental benefits.
- Employee stock purchase plan with a discount.
- Equity rewards may be available.