Senior Backend Engineer — Auth & Fraud (Remote)

Affirm is seeking an experienced backend engineer to design, develop and launch scalable backend systems in Python or Kotlin. The role emphasizes ownership, high availability, and low latency across web and mobile surfaces.

You’ll work closely with product, design, and analytics to balance constraints while driving quality and reliability. The position is remote within Canada, offering equity, monthly stipends for health and tech, and a comprehensive benefits package as part of total