Founding Engineer

Job Description

#### About the job Founding Engineer

**Location:** San Francisco, CA --- in-person, 5 days a week

**Type:** Full-time

**Experience:** 0--4 years (new grads welcome)

**Visa sponsorship:** Not available
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The Opportunity
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We're recruiting on behalf of a seed-stage, venture-backed software company building an AI-native platform in a large B2B category. The team is small, dense, and design-obsessed. They went from zero to real revenue within months of launching, count dozens of venture-backed startups and post-Series A companies as paying customers, and have raised over $5M from well-known institutional investors.

The bar here is taste. If you've ever opened Linear, Raycast, or Vercel and thought *"why doesn't every B2B tool feel like this?"* --- that's the standard you'd be hired to hold.

This is a founding engineering hire. You'd work directly with the founders, ship to production every week, and have outsized influence on what the product becomes.

What You'll Own
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* **Core product surfaces.** The workflows customers live in every day --- configuration, orchestration, and the multi-step systems that run their operations.
* **The embedded AI agent layer.** Agents that research, draft, and take action on the user's behalf, inside the product rather than bolted on.
* **Eval and observability tooling.** The instrumentation that makes customers trust an AI to run something business-critical.
* **70 100.** Taking features another engineer has built to 70% and finishing them to production-grade quality.
* **Direct customer contact.** You'll sit in shared Slack channels with users, read their signals, and convert them into product decisions --- no spec will be handed to you.
* **Product direction.** Pairing with founders on what to build next. You're expected to contribute as much product intuition as engineering output.

What We're Looking For
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**Must-have**

* 0--4 years of engineering experience; new grads welcome
* Strong full-stack ability across Next.js, React, Python, FastAPI, and Supabase
* Degree or background in Computer Science, Data Science, or Industrial Engineering / Operations
* Exceptional product intuition --- you can articulate *why* a UI feels right or wrong and reason from first principles about user workflows
* Ability to go from rough idea to shipped production feature without hand-holding
* Comfortable owning customer calls and translating technical issues clearly in both directions
* A portfolio, GitHub, or shipped side projects that demonstrate the taste bar above
* Based in SF or able to relocate immediately; in-office 5 days a week
* US citizen or existing valid work authorization

**Nice-to-have**

* Prior founder, founding engineer, or early-stage startup experience
* Experience with real-time collaborative interfaces, agent UIs, or eval/observability tooling
* A public body of work: side projects, technical writing, or a GitHub history that shows fast iteration

Benefits
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* Free lunch and dinner
* Transportation to and from the office covered
* Health insurance
* Laptop and equipment provided