Senior Software Engineer, Backend (Partner Merchant Interface) at Affirm

Department: Checkout

Compensation

$173,000 – $255,000/yr

Setup: Remote
Location: Oregon
Type: Full-time
Level: not_specified
Posted: Sep 9, 2026

Description

Affirm is hiring a Software Engineer for its Partner Merchant Interfaces - Integration team within Decisions Foundations. The role focuses on APIs used by partners and merchants, including Amazon and Stripe, and involves backend systems, distributed systems, AWS, MySQL, Kubernetes, debugging, code reviews, and collaboration with stakeholders. The position is remote-first, offers a USA base pay range of $173,000 to $255,000 depending on location, and includes health, dental, vision, equity, stipends, and other benefits.

Required Skills

Python
Kotlin
Distributed systems
AWS
MySQL
Kubernetes
Code reviews

Additional Information

Minimum Education: Equivalent practical experience or a Bachelor’s degree in a related field
Required Previous Experiences: Previous work or internship experience designing, developing, and launching backend systems at scale
Experience using Python or Kotlin
Familiarity with distributed systems
Experience debugging code
Experience providing feedback through code reviews
Translation Company Name: Affirm

About Affirm

Affirm

financial products

Buy now pay later without the fees. Flexible payment options with longer plans, lower payments, and no fees. Pay in 4 interest-free or get more time and see your total cost upfront.

View full company profile