Founding Engineer

Y/n is an app where you play a character in your story. Be a boarding school student and get the boys to fall in love with you, or plan a jailbreak with Sherlock Holmes.

Stories are made for you. Your texts change the plot and how characters feel about you, so no two playthroughs are the same (but you can rewind).

There's a Y/n story for every mood: romance, fanfiction, fluff, mystery, and more. Discover 10M+ stories created by the community.

Can't find the one you want? Write and publish your own.

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!

Our mission to solve one of the hardest challenges in computing: to train an AI to write the most creative stories in the world. It brings its own fun sub-challenges: we run our own datacenter, collect data in-house, and serve trillions of inference tokens each month.

1. Send us your Github
2. 30 min interview with Eric (CTO)
3. Live coding session with Eng team
4. 30 min call with Gabriel (CEO)
5. Offer