You will invent new design paradigms for human-agent supervision at scale. As a founding engineer, you'll own the entire user experience from greenfield design systems to mission-critical browser agent interfaces. This role is for a product-obsessed builder with elite taste who wants to define how the world interacts with the next generation of AGI.
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San Francisco, USA$130K-$160K + 0.20%-0.40% Equity
Featured roleSan Francisco, USA$130K-$160K + 0.20%-0.40% Equity
Founding Product Engineer at Asteroid — YC-backed AI Agent Startup
Join Asteroid as a Founding Product Engineer to build the interfaces that will define the age of AGI. Backed by Y Combinator and leaders from OpenAI, Asteroid is pioneering computer-use agents that automate mission-critical workflows in healthcare. We are looking for a product-obsessed builder with elite taste to own our entire UX end-to-end, from our core design system to novel human-in-the-loop supervision tools. If you want to move beyond chat windows and create the next generation of AI interaction paradigms in San Francisco, this is your greenfield opportunity.
Overview
Why this role stands out
Company
Software5
Asteroid - YC-backed startup building browser-based AI agents
Responsibilities
What you will do
- Build and own the end-to-end platform UX, including a unified design system and core frontend features using TypeScript and Go.
- Drive user adoption by conducting interviews, reviewing PostHog sessions, and iterating on onboarding to make complex agent executions intuitive.
- Function as a full-stack owner, building features from backend infrastructure to polished landing pages and customer-facing tools.
Candidate profile
Who this is a fit for
- Has 3+ years of experience shipping B2B products used by thousands of users with a strong portfolio of high-quality frontend work.
- Possesses incredible visual taste and Figma fluency, balancing perfectionism with the pragmatic need to ship rapidly in a startup environment.
- Demonstrates an AI-native mindset with the ability to manage customer accounts directly and translate feedback into high-impact platform improvements.
What makes it remarkable
Why this role is remarkable
- Shape the interface of the future by designing how humans supervise agent workforces across complex, exception-heavy healthcare and enterprise workflows.
- Join a world-class founding team backed by Y Combinator (W25) and top angels from OpenAI and Hugging Face in a high-growth environment.
- Enjoy complete greenfield ownership over the platform's UX and design system, moving far beyond simple chat windows into novel AI-native interactions.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack