Senior Backend AI Platform Engineer
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Build AI platform infrastructure with Python or Kotlin as a remote Senior Backend Engineer at Affirm, serving teams and production workloads.
This senior-level role owns technical decisions and projects across design, launch, and on-call. You will build highly available distributed systems using AWS, MySQL, and Kubernetes. Your work supports LLM gateways, agent runtimes, evaluation services, identity, routing, caching, and failover controls.
Key Responsibilities:
- Design gateway, runtime, and evaluation services for production AI workloads
- Plan projects and own decisions from design through launch
- Build identity, quota, routing, caching, and failover controls
- Monitor systems through metrics, alerts, runbooks, and on-call
- Mentor engineers and improve design, coding, and testing practices
Requirements:
- Four or more years designing backend systems at scale
- Experience with Python or Kotlin, AWS, MySQL, and Kubernetes
- Production experience with LLMs, agents, or AI frameworks
- Equivalent practical experience or a related Bachelor’s degree
- Strong written and verbal communication for global collaboration
Bring distributed systems expertise and production AI experience to Affirm’s remote AI Platform team across Canada.
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