Staff Software Engineer, Backend (Growth Platform)

Overview

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 Growth Platform team builds shared backend platforms that power incentives, experimentation, personalization, and data-driven decisioning across Affirm’s consumer and merchant experiences, directly influencing customer acquisition, engagement, and retention.

Responsibilities

• You will be responsible for setting technical strategy for your team on a year-long time scale, owning backend platforms that power incentives and growth initiatives across Affirm.
• You will collaborate with product management, analytics, and partner teams to shape technical direction for incentive systems, ensuring long-term sustainability, correctness, and clear trade-offs that inform roadmap decisions.
• You will act as a force-multiplier by defining platform abstractions, ...