Founding Software Engineer

Avallon•New York, NY

8h•Onsite

About The Position

Insurance is one of the largest industries in the world, and it still runs on manual work nobody wants to do. Claims is the clearest case: high-volume, repetitive workflows handled over the phone, by email, and across 200-page PDFs, most of it sitting in systems built in the early 2000s. Software has circled this problem for decades without touching the core of it, because nothing could make the calls or read the documents. AI finally can. Avallon builds agents that run the full claims lifecycle, from intake to settlement, so teams can move faster, eliminate busywork, and get more right. Out of YC we went from zero to seven figures of ARR in twelve months, and are now growing 3X quarter over quarter while working with some of the largest carriers in the world. Avallon is backed by top investors, and our founding team includes builders from MIT, Harvard, and CornelI. We aim to become the automation layer for the entire insurance industry, and we intend to get there with a talent-dense team where everyone is enabled to do best work of their careers.

Requirements

Comfortable in a founding role as you shape the platform and the product direction.
High agency, full ownership. You’re the driver, not a contributor.
TypeScript, SQL, 4+ years building production software.
Built reliability infrastructure with retries, circuit breakers, graceful degradation and observability.
Regulated or security-sensitive environment experience. Every action needs a trail.
Based in NYC or willing to re-locate.

Responsibilities

Own the agent execution platform, the core harness powering every agent at Avallon: turn handling, tool orchestration, session lifecycle.
Own provider routing, multi-provider failover, cost optimization, latency-aware model selection.
Build the eval platform that catches regressions before customers do: per-run evals, canary deployments, automated regression detection.
Own the developer platform that unlocks team velocity with coding agent workflows, internal tooling and CI/CD.