Staff Software Engineer, Backend (Capacity Modeling)

You write and ship real features alongside a team, bugs, interfaces, working product.

📋About the Role

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Capacity Modeling team ensures Affirm can safely handle forecasted traffic—especially during peak sales events—by translating demand forecasts into concrete, testable capacity plans. They build and maintain statistica…