Software Engineer, Applied AI

This position is core to our product. Mantle is an AI agent, so the quality, reliability and trustworthiness of that agent is the product. As a Software Engineer on our Applied AI team, you'll design and build the agent systems that take real work off of families' plates: understanding their situation, taking action on their behalf, and knowing when a human needs to step in.

You'll work directly with founders and the engineering team to take agent capabilities from prototype to production. It's not just about clever prompts; it's about the unglamorous work of building evals, chasing down failure cases, and making the agent dependable enough that families can rely on it every day.