Founding Product Engineer
About the Role
This is a founding 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 operable by LLM agents. On a small team, your technical and product judgment will directly define what gets built and how.
What You'll Do
Scope, design, build, and iterate on whole product modules, from versioned API to React UI, in direct collaboration with customers.
Design and evolve architecture for agentic AI systems across conversational interfaces, web, and vendor integrations.
Ensure features are drivable by LLM agents via MCP/FastMCP servers and conversational interfaces.
Move pricing and business logic off the client into backend services to preserve financial fidelity.
Extend and maintain a typed pricing ontology using Pydantic models covering SKUs, propositions, personas, pricing, and more.
Lead architectural reviews and technical discussions to keep systems robust, extensible, and secure.
Establish
