
Founding Engineer
Job Description
Hi, my name is Gabriel and I'm the founder of Y/n.
Y/n is an app where you can create, share, and play interactive stories. Today, 100K+ teenagers spend 3+ hours a day in the app playing characters in text stories of their own making.
A few facts about why you should join Y/n:
- We launched 8 months ago and are already one of the top books apps in the world (reached #4 app in the App Store this month).
- We serve ~2T tokens (~200M user messages, growing 40% MoM) per month with a team of 3.
- We raised $14M from top VCs.
- My co-founder Eric is a technical genius. He trained the first-ever image editing AI in the world. Before Y/n, I was the founding designer at Substack.
We're looking for a founding full-stack engineer to own most of the app surface and our personalized recommendations infrastructure. This is a role with a lot of ownership across the product!
What we expect from you:
- You’ve built actual infrastructure (not just pushed to Vercel).
- You’ve worked at a startup or built meaningful side projects.
- You’re into fandom, reading, and fanfiction!
- You're based in (or willing to relocate to) San Francisco.
Hollywood authored the dominant stories of the last century. Our mission at Y/n is to create the most entertaining stories of the next one. If creating this entertainment machine sounds interesting, do reach out.
Interview Process
- Send us your Github
- 30 min interview with Eric (CTO)
- Live coding session with Eng team
- 30 min call with Gabriel (CEO)
- Offer
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Job Details
- Category
- Aerospace Engineering
- Employment Type
- Full Time
- Location
- San Francisco, CA, US
- Posted
- May 14, 2026, 01:41 PM
- Compensation
- $120,000 - $300,000 per year
About Y/n
Part of the growing frontier tech ecosystem pushing the edges of what's possible.
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