Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest.

The Upfunnel Messaging team at Affirm builds and maintains the platform for serving promotional messaging on partner merchant sites and affirm.js, our javascript library for merchant site integration. Our consumer artifacts are heavily used and represent the highest trafficked systems at Affirm; O(10k) merchants use it daily, with O(100M) requests every day.

The goal of the team is two-fold:

We aim to turn Upfunnel Messaging into a turnkey service, and to empower merchants to optimize and custom...