Senior Software Engineer, Backend (merchant Advocacy)

Affirm Affirm · Fintech · Canada, United States · Remote · Checkout

Senior Backend Software Engineer for Affirm's Merchant & Partner Lifecycle team, focusing on building a new lifecycle-orchestrator service to improve availability and modernize the platform. Requires strong backend experience, distributed systems knowledge, and proficiency in API design and event-driven architecture.

What you'd actually do

  1. Design & expand the backbone of our platform to scale to hundreds of thousands of merchants from all around the world
  2. Design and align the scope of work with other teams to deliver cross-team projects
  3. Mentor other engineers to ensure their development & growth
  4. Partner with Engineering Manager and Team Lead to drive and execute the long-term vision of the team
  5. Execute technical strategy for broad or complex requirements with insightful and forward-looking approaches that go beyond the direct team and solve large open-ended problems

Skills

Required

  • backend software engineer
  • Domain-Driven Design
  • distributed systems
  • API design
  • event-driven architecture
  • database design
  • AWS
  • gRPC
  • Snowflake
  • Kotlin
  • Python
  • MySQL
  • Kubernetes

Nice to have

  • Java
  • monitoring and alerting systems
  • sentry.io
  • rollbar
  • chronosphere
  • kibana

What the JD emphasized

  • 5+ years of experience as a backend software engineer
  • A strong understanding of Domain-Driven Design, distributed systems, and how architectural decisions affect performance and maintainability
  • Proficiency with data models, API design (http and RPC), state machines, event-driven architecture, and database design
  • Experience designing, developing, and launching backend systems