About the role
Sekai is building the TikTok for mini apps — an AI-driven consumer platform where people create, remix, share, and play interactive content instantly.
We are a Series A company backed by Khosla, a16z, Mayfield, and A*, with $30M raised to date. We are remote-first across all positions and are looking for ambitious, AI-native builders who want to help shape the next generation of consumer social products.
Here are Sekai’s download links:
- Android: https://play.google.com/store/apps/details?id=chat.sekai.app&hl=en_US
- iOS: https://apps.apple.com/us/app/sekai-create-remix-play/id6504506653
About the Role
We are looking for a Senior Machine Learning Engineer to own search and recommendation systems for Sekai’s consumer product.
This role sits at the center of content discovery, user engagement, and content distribution. You will build the models and systems that decide what users see, what they search for, what they continue playing, and how high-quality content reaches the right audience.
This is a senior IC role for someone who has built real recommendation, search, ranking, or discovery systems in production for consumer apps, especially in entertainment-driven products.
What You Will Own
- Build and improve recommendation and search systems across feed, discovery, search, and content continuation surfaces.
- Own retrieval and ranking systems, including candidate generation, embedding-based retrieval, two-tower models, ranking features, and online serving quality.
- Design, launch, and analyze recommendation/search experiments end-to-end, then use the data to iterate quickly.
- Improve recommendation quality for new users, new content, and fast-changing content pools.
