Affirm
Senior Software Engineer, Backend (Loan Origination and Reporting)
$173K–$255K
Remote US · Remote · Senior · Full-time · Posted Sep 11, 2026
- Experience
- 4+ years.
- Education
- Bachelor’s degree in a related field or equivalent practical experience.
About the job
Build and scale real-time loan-origination services, backend data platforms, and reporting systems for Affirm and its financial partners.
What you'll do
- Own quarterly team goals, guide engineers through ambiguous problems, and support delivery.
- Collaborate with product, design, and analytics on technical decisions, risks, and trade-offs.
- Support service operations and availability, improve engineering quality standards, and develop team talent.
What they ask for
- 4+ years designing, developing, and launching backend systems at scale using languages such as Python or Kotlin.
- Track record developing highly available distributed systems using technologies such as AWS, MySQL, and Kubernetes.
- Deep expertise in scalable backend data pipelines and batch processing using Spark, Airflow, or similar distributed frameworks.
- Experience planning and delivering significant features or system components with extensible design; strong coding, communication, and large-codebase skills.
Pay
$195,000 - $255,000 USD per year (base salary; CA, WA, NY, NJ, CT); $173,000 - $233,000 USD per year (base salary; all other U.S. states)
Tools
Python, Kotlin, AWS, MySQL, Kubernetes, Spark, Airflow
Model-written summary · the original posting is authoritative