Senior Backend Infra Engineer for AI Evaluation Platform

Arena Intelligence is building the core infrastructure for its online evaluation platforms that route traffic from frontier models and manage bursts with reliability. You will shape the gateways, runtimes, and serving layers that enable scalable, fair model evaluation.

As an early infrastructure engineer, you will collaborate with researchers, engineers, and product leadership to ship high-throughput APIs and enterprise-grade features, from observability to SOC 2 readiness, across a fast-moving