About Sourcerer

Sourcerer builds AI agents that autonomously source and negotiate across B2B marketplaces — navigating platforms via browser automation, conducting multi-turn negotiations, and extracting structured quotes. Our mission is to transform how businesses procure goods by automating complex sourcing workflows end-to-end.

Role Overview

The Head of AI will own the intelligence layer of our platform and build the team that scales it. This role is strategic and hands-on, focused on designing robust AI systems that operate autonomously in real-world environments.

Key Responsibilities

● AI Orchestration: Design and optimize across multiple LLM providers, each serving different roles (conversation, reasoning, media processing)

● Negotiation Engine: Own the AI pipeline driving autonomous supplier conversations, including message generation, conversation assessment, and response routing

● Prompt Engineering: Design structured prompt systems across platforms for negotiation, supplier evaluation, and contact enrichment

● Platform Expansion: Extend AI capabilities to new B2B marketplaces and messaging channels

● Reliability & Evaluation: Build testing frameworks and evaluation practices for non-deterministic AI outputs

● Team Leadership: Hire, mentor, and manage a high-performing engineering team as the company scales

Minimum Qualifications

● 4+ years in software engineering, with 2+ years building production LLM applications (autonomous systems, not prototypes)

● Hands-on experience with multiple LLM APIs (structured outputs, tool use, cost optimization)

● Strong Python skills, including FastAPI, async programming, and Pydantic

● Experience with browser automation (Playwright or Puppeteer) at scale

● Background in early-stage startups or high-ownership environments

● Proven experience hiring and managing engineers

● Strong communication skills with the ability to translate AI capabilities into product decisions

Preferred Qualifications

● Experience with multi-turn conversation systems or dialogue state machines

● Familiarity with multi-agent architectures or autonomous task orchestration

● Background in B2B sourcing, supply chain, or marketplace platforms

● Experience with media/document processing via LLMs (vision models, PDF extraction)

● Experience with AWS infrastructure (EC2, RDS, Terraform)

● Familiarity with cross-platform messaging integrations (e.g., WhatsApp, WeChat)

Why Join Sourcerer

● Build cutting-edge AI systems that operate autonomously in real-world environments

● Work directly with leadership on core product and technical decisions

● High ownership and ability to shape the future of the company

● Opportunity to build and lead a world-class AI engineering team

Location

San Francisco Bay Area (role is in-person)