Full Stack AI Engineer (Founding)

Company: PetsApp
Location: San Francisco
Posted on: May 20, 2025

Job Description:

About SellScaleSellScale is an Agentic AI company. In 10 years, we believe the most efficient orgs will rely on a collaborative, agentic AI to grow their businesses.Right now, we are in a massive AI gold rush. The agents we're building leverage PhD-level thinking paired with state-of-the-art GTM tools (prospecting, web intent, sequencing, etc) - to fundamentally change how companies approach their growth.RoleWe're growing - and we're expanding the eng firepower here. We are looking for a Founding Full Stack AI Engineer. Extensive previous AI experience is not required - but it is a bonus. Interest in AI, solid CS fundamentals, and full-stack capabilities are a must.You are a good fit if---

• You attend hackathons and love building.
• You want to play with all the new releases - from OpenAI O3 to Agentic Infrastructure.
• You build apps in your free time - Product Hunt launches to playing with the newest LLM release.
• You are ready to go all-in on an Agentic AI startup and be an owner, in the heart of SF, as part of a founding team.Reasons to not apply---
• You are looking for "senior leadership" guidance - the buck stops at you to solve problems!
• You don't enjoy in-office culture - we work 5 days a week.
• You're looking for larger companies - this is a founding team!Positives
• You will make decisions that will take you 10 years at Google to do.
• There are few other places where you will learn more about building in an agentic / AI than here.
• You will have a driver's seat in building a unique product with a growing customer base.Application process
• Intro call - get to know Selix & the SellScale team.
• Technical - Build a full stack app, then pair-program on it live.
• Product & pace - Walk through the non-tech side of SellScale - filled with prototyping, WOZing, prompting, and more.The stackFront-end: React/TypescriptBack-end: Python (Flask)Database: PostgreSQLMore about SellScaleWant to learn more? Check out our resources below.Reference 1: NewtonX Case Study: Reference 2: I'm AI BDR, and I'm SelixI'm a Mac, I'm a PC: Reference 3: SellScale values:
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Keywords: PetsApp, Richmond , Full Stack AI Engineer (Founding), Engineering , San Francisco, California