Software Engineer

About the role

Hi, my name is Gabriel and I'm the co-founder of Y/n . Y/n is an app where you play the main character in a story written for you. Be the new kid at a boarding school and get everyone to fall for you, or plan a jailbreak with Sherlock Holmes. Every text you send changes the plot and how characters feel about you, so no two playthroughs are the same. Our mission at Y/n is to create the most entertaining storyteller in the world, and give it to everyone. Why you should join us People love Y/n: Users spend on average 3+ hours playing Y/n everyday We are top #10 books apps in the world (reached #4 app in the App Store last month), even though we just launched We raised $14M from top VCs We work on interesting technical problems: We serve ~3T tokens (~300M user messages, growing 40% MoM) per month with a team of 4 We manage a LOT of compute! Training an AI to be fun and creative is incredibly interesting The founders + team are fun to work with: My co-founder Eric trained the first-ever image editing AI in the world Before Y/n, I was the founding designer and one of the first employees at Substack, where I learned a lot about product and media Together, we previously co-founded Can of Soup, a hit AI image sharing app, which you can read about in the New York Times Some examples of what you would do You'd be one of our first engineers, with real ownership across the product and the infrastructure. In practice that could mean: Building our personalized recommendation system infrastructure Building features in our mobile and web application The role will adapt and grow as we do, so don't worry if you haven't worked on recommender systems or ML yet! What we're looking for You've built actual infrastructure (not just pushed to Vercel) You've worked at a startup or built meaningful side projects Optional: you're into fandom, reading, games, or fanfiction! You're willing to relocate to San Francisco. If you do not have US work authorization, we can help with that

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