Founding Full Stack AI Engineer

Posted 7 Hours Ago
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San Francisco, CA, USA
In-Office
150K-250K Annually
Senior level
Agency • Events • Professional Services • Sales
The Role
Founding Full-Stack AI Engineer to architect, build, and scale an enterprise digital account manager. Own end-to-end features, build integrations and data ontology mapping, develop intuitive UIs, and design agentic LLM solutions (memory, RL). Work directly with founders and customers to iterate rapidly and deliver enterprise-grade, scalable AI products onsite in San Francisco.
Summary Generated by Built In
About Us:

Sylvan Labs is tackling a critical gap in enterprise software — an underpenetrated space with billions in unrealized revenue potential. We are building a digital account manager agent that autonomously analyzes data, surfaces revenue insights, and automates follow-through. In the long run, we aim to multiply the output of every customer-facing team, transforming how businesses scale revenue from the ground up.

We are looking for a Founding Full-Stack AI Engineer who wants to redefine how enterprise companies drive revenue. We will only hire A-players and are highly willing to go above-market in ownership, equity, and cash compensation. We want world-class builders who are excited by the opportunity to be part of a category-defining company at the earliest stage. It won’t be easy. We’re going to move fast. But it’ll be fun.

The Role

As a Founding Engineer, you’ll work directly with the founders to architect, build, and scale the platform from 0 to 1. You’ll take full ownership of core features, shape the product roadmap, and drive technical execution in an environment that values speed, iteration, and excellence.

  • Own and ship features end-to-end, from architecture to deployment.

  • Build robust integrations + data ontology mapping tooling to streamline ingest and normalization of 3rd-party data, delivering enterprise-grade durability, scalability, and rapid customer deployments.

  • Develop and maintain intuitive, functional UIs — pushing the envelope on AI product patterns and moving beyond simple chatbots to create more immersive, assistive experiences.

  • Architect & build agentic solutions that automate complex workflows while advancing applied AI — from long-term agent memory to enhancing LLMs with reinforcement learning.

  • Work closely with customers, iterating rapidly to refine and improve the product.

In this role, you will be responsible for building and scaling a high-impact platform that will shape the future of revenue operations.

Who You Are
  • Been the top code contributor on your prior teams, not phased by the prospect of long hours when needed to ship and scale.

  • A world-class software engineer who thrives in a fast-paced, high-ownership environment.

  • Passionate about building high-quality products with speed and precision.

  • Strong customer empathy — you understand user needs and build with them in mind.

  • Proven track record building real-world ML/AI products with solid grasp of AI/ML fundamentals.

Plus factors:

  • Prior experience as a founder / early-stage engineer.

  • Experience with React, TypeScript, and Python.

This role is a rare opportunity to build foundational technology in a massive, underpenetrated market. If you're excited to own, build, and scale a category-defining platform, we’d love to talk.

Values
  • In-Person Only. We are onsite in San Francisco — no remote or hybrid.

  • A-Players Only. We hire exceptional talent and pay above-market rather than compromise. A-players attract A-players.

  • Relentless Drive. You have a chip on your shoulder, thrive under pressure, and have extremely high urgency.

  • Bias for Action. We don’t debate for weeks — we build, test, and iterate. Speed of execution is our advantage, and we expect everyone to push velocity.

  • Craft Matters. You take pride in doing great work, not just getting things done. Thoughtful, intentional execution matters as much as speed.

  • Fast Decisions, Fast Corrections. If someone isn’t the right fit, we move on quickly. Paid trials help us hire with conviction.

  • Customer-First, Always. Internal speed should never slow down external results. If a customer feels stuck, we failed.

  • Merit Over Politics. Titles reflect impact, not tenure. No ladder-climbing, no bureaucracy. Flat hierarchy.

  • Attention to Detail. Excellence is in the details. Pixel-perfect UI and thoughtful execution separates great products from mediocre ones.

Most importantly: No Assholes, High Mutual Respect. We operate at high intensity, but with deep respect. Direct, honest, and no egos — just a shared obsession to win.

Skills Required

  • Top code contributor on prior teams
  • World-class software engineering ability and high ownership
  • Proven track record building real-world ML/AI products and strong grasp of AI/ML fundamentals
  • Ability to own and ship features end-to-end (architecture to deployment)
  • Experience building robust integrations and data ontology mapping/normalization tooling
  • Experience developing and maintaining production-quality UIs
  • Ability to architect and build agentic solutions (LLM enhancement, long-term memory, automation of workflows)
  • Strong customer empathy and experience iterating with customers
  • Willingness to work long hours when needed and thrive in a fast-paced startup
  • Onsite work in San Francisco (in-person only)
  • Prior founder or early-stage engineer experience
  • Experience with React, TypeScript, and Python
  • Experience with LLMs and reinforcement learning
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The Company
182 Employees
Year Founded: 2010

What We Do

Talent Tree Agency is a national experiential marketing agency that delivers sales-driven programs designed to move products in-market. The company partners with brands to create experiential marketing events that root brands nationwide, providing personalized, white-glove service. They focus on driving growth and sales for their partners by utilizing a web-based platform for data-backed reporting and transparency from brief to execution.

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