Backend Engineer II — Checkout Platform (Remote)

Affirm; Sioux Falls (SD); Remote; USD 146,000 - 206,000; Full time

Benefits offered by this job

Health coverage

Monthly stipends for tech setup

Flexible time off

Employee stock purchase plan (ESPP)

Job summary

Affim is building a next‑generation Checkout Platform to deliver a world‑class buying experience. We seek a Backend Software Engineer to design and implement API’s and microservices, managing every user’s transaction with Affim.

You will work in a fast‑paced team, own components, and improve performance and reliability. This role emphasizes ownership, collaboration, and delivering customer‑centric software at scale.

Qualifications

• Position requires equivalent practical experience or a Bachelor's in a related field.
• Own components of checkout systems and design for long-term health.
• Collaborate across teams to build the next generation of the checkout platform.
• Learn and improve engineering standards, tooling, and processes.

Responsibilities

• Design and implement API and microservice interfaces for user transactions.
• Own and improve checkout system components and their health.
• Collaborate with engineers across the organization to advance the checkout platform.
• Enhance engineering standards, tooling, and processes across the checkout platform.

Skills

Backend development

Distributed systems

API design

Team collaboration

Tools

Python

Kotlin

RPC

Redis

MySQL

AWS

Github

Job description

Affim is building a next‑generation Checkout Platform to deliver a world‑class buying experience. We seek a Backend Software Engineer to design and implement API’s and microservices, managing every user’s transaction with Affim.

You will work in a fast‑paced team, own components, and improve performance and reliability. This role emphasizes ownership, collaboration, and delivering customer‑centric software at scale.