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Founding Engineer

Cardinal· Engineering
Apply on company site
San Francisco, CA$150k - $230kFull-timePosted 6mo ago

About the role

Founding Engineer to architect and build the core AI agents and infrastructure powering precision outbound at Cardinal, with direct customer interaction, shaping product direction, and ownership of revenue-driving systems for YC customers.

Responsibilities

  • Architect and build core AI agents and infrastructure for precision outbound at scale.
  • Make systems accessible through intuitive interfaces.
  • Work directly with customers and shape product direction.
  • Own critical systems that drive revenue for 40+ YC companies.

Qualifications

  • 1–6 years of experience building production systems and user-facing features.

Skills

Required:TypeScriptReactNext.jsPython

Benefits

  • Significant equity in a fast-growing YC-backed company.
  • Direct customer impact — your code powers outbound for dozens of high-growth startups.
  • Competitive compensation — $150k–$230k base salary plus equity.
  • Full benefits — health, dental, vision, unlimited PTO.
  • San Francisco office for in-person collaboration.
Last updated Oct 22, 2026. Interested? Apply on the company site.
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About Cardinal

The AI Platform for Precision Outbound

We work with fast-growing teams who want outbound to function like a real engine—not a collection of disconnected tools and experiments

AIOutboundSalesAutomationSequence

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