Founding Product Engineer
About the Role
This is a founding-level product engineering role at an early-stage B2B SaaS startup building an AI-driven pricing and monetization platform. You will own entire product modules end-to-end, working directly with customers and leadership to shape architecture, ship production-quality systems, and ensure every feature is drivable by LLM agents. On a small team, your technical judgment and customer-facing scope will have an outsized impact.
What You'll Do
Scope, design, build, and iterate on whole product modules, from versioned APIs to React UI, in close collaboration with customers.
Design and evolve architecture for agentic AI systems across Slack bots, terminal interfaces, web, and vendor integrations.
Ensure features are drivable by LLM agents via MCP/FastMCP servers and conversational interfaces.
Move pricing and business logic from the client into backend services to preserve financial fidelity.
Extend and maintain a typed pricing ontology using Pydantic models covering entities such as SKU, Proposition, Persona, Pricing, Customer, Contract, and Quote.
Lead architectural reviews and technical discussions to keep systems robust, extensible, and secure.
