Founding Engineer

  • San Francisco, California, United States
  • Full-Time
  • On-Site
  • 160,000-200,000 USD / Year

Job Description:

San Francisco, CA · On-site · Full-time
Compensation: $160,000–$200,000 + founding equity

About the Company

We're an early-stage, accelerator-backed startup building the AI SEO platform that helps retail and e-commerce brands win at AI-driven shopping. As AI replaces traditional search, we give brands the tools to track how their products appear across AI engines, optimize product data and on-site content for AI recommendations, and enable instant checkout directly inside AI assistants. Strong early traction with live brand customers and a fast-growing pipeline.

Founded 2025 · 1–10 people · Industry: AI Tools

The Role

Founding Engineer — engineer number one. You're not joining a team; you're helping build one. This is a high-ownership role: you help decide what gets built, how it gets built, and what gets prioritized as a fast-moving market evolves. Nobody has fully figured this market out yet, and that ambiguity is the opportunity.

What you'll be doing

  • Build incrementality and attribution systems tied to revenue outcomes for e-commerce brands
  • Scale browser orchestration and retrieval infrastructure across AI commerce surfaces
  • Make core workflows reliable with better queues, retries, and observability
  • Adapt the product to emerging agentic commerce protocols and new platform launches
  • Build AI agents, MCP servers, and new product surfaces across emerging verticals
  • Own the full stack frontend to backend, work in tight feedback loops with customers, and shape engineering culture and architecture from day one

Tech stack: TypeScript, Node.js, Express, React, Next.js; Postgres, Redis, queues / async jobs; browser automation & retrieval infrastructure; LLM APIs, AI agents, MCP servers

Requirements

  • 3 to 7 years software engineering at a high-signal company
  • TypeScript and Node.js proficiency
  • AI agent and LLM API experience in production
  • Full-stack product development capability
  • Founding engineer mindset, high agency and high ownership
  • In-person San Francisco

Green Flags

  • Background at a high-signal YC Series A to B company
  • Has worked at Scale AI, a top YC company, or a fast-moving early-stage startup where they had real ownership and shipped meaningful product
  • Has built AI agents or LLM-powered workflows in production, not just experimented locally
  • Has the profile of someone who would be or has been a founder, takes ownership of outcomes not just tasks
  • Top school or exceptional engineering pedigree that signals deep technical ability even with fewer years of experience
  • Active user of AI-native development tools, moves faster because of the tools, not dependent on them

Red Flags

  • Big tech background only with no evidence of operating at startup speed or owning a full product end-to-end
  • Job hopper, multiple short stints without clear progression or shipped product
  • Has been unemployed for six or more months without a clear reason
  • Wants a defined scope and structured environment, this role requires someone who creates structure, not someone who needs it
  • No real AI agent or LLM experience, the product is deeply AI-driven and this is a hard requirement

Why Join

  • Genuine founding seat: shape architecture, culture, and product direction from day one
  • A market at an inflection point, with real runway behind it
  • Direct daily collaboration with the founder and meaningful founding equity

Details

  • Location: San Francisco, CA
  • Work policy: In-person
  • Compensation: $160,000–$200,000 + founding equity
  • Visa sponsorship: None available
  • Employment type: Full-time