Senior Backend Ai Platform Engineer

Build AI Platform services remotely from Canada using Python or Kotlin, distributed systems expertise, and production LLM experience. Support affirm’s global infrastructure.As a Senior Software Engineer, Backend, you will design and launch governed AI systems for affirm engineers and production workloads. You will work with AWS, MySQL, Kubernetes, LLM gateways, agents, evaluation services, and observability. The team is moving AI workloads from pilots toward production inference and agents.Key Responsibilities:
Own AI Platform projects from design through launch and on-callBuild gateway, runtime, and evaluation services for AI workloadsDevelop identity, quota, routing, caching, and failover controlsPartner on security guardrails and tool-access identity modelsMonitor systems through metrics, alerting, runbooks, and on-callRequirements:
4+ years designing and launching scalable backend systemsExperience with Python or Kotlin, AWS, MySQL, and KubernetesProduction experience with LLMs, agents, or AI frameworksAbility to design significant, elegant, simple, extensible systemsBachelor’s degree or equivalent practical experienceBring backend engineering, AI infrastructure, and distributed systems experience to affirm’s remote Canada AI Platform team.
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