Founder‑Level Role for Ex‑YC Entrepreneurs

About the role

Sauna.ai, backed by Spark Capital, Felicis, and Y Combinator, is looking for a former YC founder to join its 20‑person team in San Francisco. This full‑time, on‑site position is designed for a founder‑level operator who can shape product, engineering, or growth initiatives based on their strongest expertise.

Key responsibilities

• Define and execute strategy for Sauna, the first multiplayer AI brain.
• Lead cross‑functional initiatives in engineering, product, or growth as needed.
• Collaborate closely with the team to iterate on AI agent capabilities.
• Help build the company’s next phase of growth while maintaining high standards of quality.

Required profile

• Previously founded or co‑founded a YC‑backed company.
• Deep understanding of what works and what doesn’t in early‑stage startups.
• Desire to build something massive rather than settle into a comfortable role.
• Comfort wearing multiple hats across product, engineering, and growth.
• Genuine excitement about AI agents, not just a résumé boost.

Required skills

What we offer

• Opportunity to shape a brand‑new AI product category.
• Fast hiring process – offer within two weeks for exceptional candidates.
• Work in a high‑energy San Francisco office with a talented, mission‑driven team.