Senior Backend Engineer - Remote API Platform & Scale

Affirm; Seattle (WA); Remote; USD 195,000 - 255,000; Full time

Benefits offered by this job

100% employer health coverage

Monthly tech stipends

Generous holiday schedule

Employee stock purchase plan

Job summary

Affirm is a remote-first company making pay-over-time simple and transparent. The Partner Merchant Interfaces - Integration team builds APIs for Partners and Merchants and powers top partners like Amazon and Stripe.

You will design and ship backend services at scale using Python or Kotlin, with AWS, MySQL and Kubernetes, delivering well-tested, extensible code and owning your growth within a global engineering team.

Qualifications

• Experience designing, developing and launching backend systems at scale.
• Proficient in Python or Kotlin and modern backend tools.
• Able to own components and review code with stakeholders.

Responsibilities

• Develop and maintain APIs used by Partners and Merchants.
• Collaborate with teams to ensure reliable, scalable services.
• Balance speed and quality while protecting systems from downtime.

Skills

Backend design

Python/Kotlin

Distributed systems

Code reviews

Ownership & growth

Education

Bachelor's degree or equivalent

Tools

AWS

MySQL

Kubernetes

Job description

Affirm is a remote-first company making pay-over-time simple and transparent. The Partner Merchant Interfaces - Integration team builds APIs for Partners and Merchants and powers top partners like Amazon and Stripe.

You will design and ship backend services at scale using Python or Kotlin, with AWS, MySQL and Kubernetes, delivering well-tested, extensible code and owning your growth within a global engineering team.