Staff Software Engineer, Fullstack (Card Experiences)

About this role

Lead full-stack development of customer-facing Affirm Card experiences and the backend services that support them. Set technical direction, deliver high-impact features end to end, and improve reliability and operational health.

About the company

Affirm offers buy now, pay later financing that lets consumers split purchases into transparent installment payments at checkout. It partners with merchants to provide flexible credit options without late fees.

The team

Card Experiences team

Stack

What you'll do

• Set the team’s technical strategy and guide business-impacting projects.
• Partner with product, design, and analytics to plan and deliver sustainable solutions.
• Own team operations, monitoring, on-call processes, and service availability.
• Set code review and design standards, and share technical guidance across teams.
• Mentor teammates through feedback and technical leadership.

What we're looking for

• 8+ years of software engineering experience, including designing and launching backend systems at scale.
• Experience building highly available distributed systems.
• Proficiency with declarative UI frameworks such as React Native, React, or Vue.
• Track record of planning and delivering major features or system changes.
• Strong written and verbal communication skills.
• Bachelor’s degree in a related field or equivalent practical experience.

Nice to have

• Experience with Python or Kotlin and technologies such as AWS, MySQL, Spark, and Kubernetes.
• Interest in adopting AI and emerging technologies safely.

Benefits

• 100% employer-paid health coverage for employees and dependents.
• Monthly technology, health, and wellness stipends.
• Flexible time off and generous holidays.
• Employee stock purchase plan with a discount.
• Equity rewards may be available.