Prompt Engineer

This is Arrowhead's Prompt Engineer seat, though the work is closer to agent engineering than prompt writing. The company is already servicing a live book of customers across edtech, fintech, and healthcare — each with distinct call flows, edge cases, and outcome expectations. Every call can go sideways in a dozen different ways. Your job is to make sure it doesn't. You'll sit at the intersection of what customers need and what the AI actually delivers on every call. That means deep customer conversations, prompt architecture, live call evals, and tight iteration cycles until the agent behaves exactly the way the business requires. The longer arc of this role is to build the rubric: a framework of use-case templates the entire team can pull from. You'll be working directly with the founding team, which means the bar on rigor, autonomy, and communication is founder-level from week one.