Senior AI Engineer

About the role

This is a backend-heavy, full-stack-in-practice role at a seed-stage startup building the AI operating system for the CFO office. The role involves owning a finance domain end-to-end, from context engineering and prompt design through tool use, evaluations, guardrails, and the UX around them.

Responsibilities

• Own a finance domain end-to-end, building the agent system that automates it across context, prompts, tools, evaluations, guardrails, and UX.
• Design and implement durable, replay-safe orchestration for long-running AI workflows across flaky, stateful enterprise systems.
• Build the trust layer for non-deterministic systems: evaluations, verification, guardrails, and observability that catch agent mistakes before a human does.
• Ship full-stack when the work calls for it, owning decisions across the LLM pipeline, infrastructure, backend, and UX within your pod.
• Build idempotent, audit-ready write-back systems for ERPs and financial systems with full traceability.

Requirements

• 2+ years building and shipping production AI agents
• 4+ years backend or infrastructure engineering
• Research background in ML, NLP, or AI agents
• Early-stage startup experience (pre-seed to Series B)
• NYC in-person, startup hours, 6 days a week, 9am to 7pm or 8pm