Staff Backend Engineer - Capacity & Scale Architect

Affirm; United States; Remote; USD 180,000 - 250,000; Full time

Job summary

Affirm is reinventing credit to make it more honest and friendly, offering buy now, pay later with no hidden fees or compounding interest. The Capacity Modeling team translates demand forecasts into capacity plans and recommends resource settings across regions and environments, including Compute and services like ElasticCache, DynamoDB, and AuroraDB.

You will lead technical strategy, collaborate across product, design and analytics, and own operations and reliability for scalable backend

Qualifications

• 8+ years designing backend systems at scale.
• Experience with AWS, MySQL, Spark and Kubernetes.
• Experience delivering scale for large sales events like Prime Day / Black Friday.
• Strong code quality and architecture delivery.

Responsibilities

• Set technical strategy for the team on a year-long horizon.
• Collaborate with product management, design & analytics on sustainability and risks.
• Act as a force-multiplier by defining technical solutions and processes.
• Own operations and availability with monitoring, triage, playbooks and on-call best practices.
• Set code review and design standards and advocate them beyond the team.
• Develop talent by mentoring and leading by example.

Skills

Python

Kotlin

Backend design

Distributed systems

Education

Bachelor's degree in a related field

Tools

AWS

MySQL

Spark

Kubernetes

Job description

Affirm is reinventing credit to make it more honest and friendly, offering buy now, pay later with no hidden fees or compounding interest. The Capacity Modeling team translates demand forecasts into capacity plans and recommends resource settings across regions and environments, including Compute and services like ElasticCache, DynamoDB, and AuroraDB.

You will lead technical strategy, collaborate across product, design and analytics, and own operations and reliability for scalable backend