Affirm
Senior Software Engineer, Backend (Reliability Platform)
$173K–$255K
Remote US +1 · Remote · Senior · Full-time · Posted Aug 4, 2026
- Location
- Remote US
Remote Canada - Experience
- 4+ years as a software engineer.
- Education
- Bachelor’s degree in a related field or equivalent practical experience.
About the job
Designs and builds a reliability platform to help teams understand, debug, and improve production service health, combining distributed systems engineering with AI-assisted development.
What you'll do
- Own quarterly team goals, guide engineers through ambiguous problems, and support delivery.
- Collaborate with product, design, and analytics on product decisions, technical constraints, and trade-offs.
- Support service operations and availability through metrics, escalation, on-call work, and quality standards.
What they ask for
- 4+ years of experience as a software engineer.
- Experience designing, developing, and launching backend systems at scale using technologies such as Python, Kotlin, AWS, MySQL, and Kubernetes.
- Experience shipping web apps with declarative UI frameworks such as React or Vue.
- Practical use of LLMs or AI frameworks for automation and guidance with guardrails and citations.
Pay
$195,000 - $255,000 USD per year (base salary); $173,000 - $233,000 USD per year (base salary)
Tools
Python, Kotlin, AWS, MySQL, Kubernetes, React, Vue
AI focus
Use LLMs or AI frameworks to enhance automation and guidance with guardrails and citations; apply AI-assisted development to the reliability platform.
Model-written summary · the original posting is authoritative