Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) 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 Engineering team builds systems that power our mission. We build reliable, performant, and scalable solutions that touch every part of the business, enabling new ways to pay, scaling our platforms to the most demanding levels in the industry, and developing seamless servicing experiences.

About the Team The Growth Platform Engineering team builds the core systems and tools that drive user acquisition, engagement, and lifecycle growth. Our platform enables personalized communications, intelligent experimentation, and scalable services that help customers discover and adopt Affirms products. We collaborate closely with Product, Data Science, and Experience teams to design APIs, event‑driven services, and experimentation frameworks that reach mil...