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Affirm
Affirm

Senior Software Engineer, Backend (Merchant Advocacy)

engineeringfull-timeRemote US
SALARY
$169k – $240k/yr
WORK TYPE
remote
JOB TYPE
full-time
INDUSTRY
fintech
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About the role

What You'll Do

  • Design & expand the backbone of our platform to scale to hundreds of thousands of merchants from all around the world
  • Design and align the scope of work with other teams to deliver cross-team projects
  • Mentor other engineers to ensure their development & growth
  • Partner with Engineering Manager and Team Lead to drive and execute the long-term vision of the team
  • 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
  • Utilize agentic development tools like Claude Code to automate parts of the development process
  • Improve engineering standards, tooling, and processes throughout the organization

What We Look For

  • 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
  • Excellent communication skills, both written and verbal. Must be proficient in asynchronous communication–written tech specs, ADRs, project plans, etc.
  • Experience designing, developing, and launching backend systems (our stack: AWS, gRPC, Snowflake, Kotlin, Python, MySQL, Kubernetes). Java and Kotlin experience are especially helpful.
  • Prior experience with monitoring and alerting systems (rollbar, chronosphere, kibana)

Pay and Benefits

  • USA base pay range (CA, WA, NY, NJ, CT) per year: $190,000 - 240,000
  • USA base pay range (all other U.S. states) per year: $169,000-219,000
  • Equity rewards, monthly stipends for health, wellness and tech spending
  • Benefits include 100% subsidized medical coverage, dental and vision for you and your dependents
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Senior Software Engineer, Backend (Merchant Advocacy) at Affirm — Remote