Senior Software Engineer, Card Loan Platform

About the Role

Join Affirm's Card Loan Platform team to build the high-throughput decision engine powering our flagship card products, solving complex, high-stakes distributed systems challenges at massive scale.

Responsibilities

• Own and deliver quarterly goals for the team, leading engineers through ambiguity to solve open-ended problems.
• Partner closely with product management, design, and analytics to articulate technical constraints and define elegant, extensible designs.
• Proactively identify, advocate for, and lead the resolution of project, process, technology, or business issues.
• Support the operations and availability of team artifacts by creating and monitoring metrics, participating in on-call efforts, and ensuring system health.
• Foster a culture of quality by setting and improving code review and design standards, and mentor team members through guidance and leading by example.

Requirements

• 4+ years of experience designing, developing, and launching backend systems at scale using languages like Python or Kotlin.
• Proven track record developing highly available distributed systems utilizing technologies such as AWS, MySQL, and Kubernetes.
• Experience defining technical plans for significant feature delivery, resulting in simple, high-quality, and easily understood code.
• Proficiency in making safe, significant changes within large, existing codebases, supported by developed tools and practices.
• Strong verbal and written communication skills for effective collaboration across a global engineering team.
• Equivalent practical experience or a Bachelor’s degree in a related technical field.

Role Impact

This role is central to Affirm's growth, as you will be building the "financial brain" for our card products, directly impacting the real-time approval and origination of every transaction.