Affirm is seeking a Senior Software Engineer (Backend) to own quarterly goals for the Repayment Scheduling team and lead engineers through ambiguity to deliver scalable backend systems. The role focuses on high-impact payments infrastructure used by millions of users in Europe, with a remote-first policy and Spain-based base. You will collaborate across product, design and analytics, own operational health, and drive quality through code reviews and design standards while growing your technical #J-18808-Ljbffr