Founding Engineer

About Hobbes

A company's most valuable asset is the conversation it has with a buyer. Most B2B websites lose that conversation at the "request a demo" form. Hobbes is a self-improving, autonomous product expert that runs real, conversational product demos 24/7. That's Phase 1. The real bet is a self-improving agentic layer that runs the revenue side of a business.

Every conversation a prospect has with the agent is logged, measured, and fed back into the product. Five prospects tell Hobbes they want to buy but need Hubspot integrated as a non-starter? Hobbes creates the PR autonomously and updates those prospects that it's ready to go-live.

We have secured $6M in funding and have tripled since February, mostly on inbound. One customer 2x'd their revenue within 8 weeks of deploying Hobbes. Another closed a deal within 2-hours of Hobbes going live on their site.

Demos are where we start. Our vision is the future of autonomous sales and self-improving products, with agent-to-agent sales, world models, and self-improving product feedback loops all in the works.

About the Role

You’ll join Hobbes as our third engineer on a team of five, working directly with co-founders Arjun (CTO) and Chirag (CEO). Together, you’ll build the systems that take our autonomous product expert from product demos to full sales conversations. That means real-time voice, UI that adapts to each buyer, custom LLM orchestration, and evaluation loops that make the agent better over time. The roadmap is still taking shape, and you’ll help write it.

What you'll build

• The agent. LLM orchestration, conversation flow, tool use, voice.

• Generative UI that adapts in real time to what the prospect cares about.

• The eval loop. Demos get smarter without manual intervention.

• The platform customers use to configure, review, and tune their agent.

• And yes: CSS, migration scripts, customer debugging. Early-stage means all of it.
  

What we're looking for

• You've shipped LLM systems to production and can talk about what broke and what you did about it.

• You move fast without creating hidden problems. You've also killed features that weren't working.

• You take ownership without being asked.

• You communicate clearly and listen closely. You’re excited to dig in with customers to understand what’s working and what could be better.
  

What We Offer

• Base: $180-230K

• Equity: Founding-caliber

• Location: In-person, San Francisco (5 days/week)

• Benefits:

  • Medical, dental, and vision coverage, plus unlimited PTO.

  • Fully covered gym membership and longevity assessments

  • Daily lunches and dinners, snacks, and espresso at our San Francisco office in Levi Plaza.
    

Our Hiring Process

Our process is designed for us to get to know each other. We’ll start with an introductory call to share more about Hobbes and learn about your experience and what you’re looking for. From there, you’ll have two 30-minute conversations, one with each founder, followed by a one-hour technical interview. We’ll wrap up with a half-day onsite at our San Francisco office, where you’ll spend time with the team and get a feel for how we work together.