xAI

This role involves integrating Grok models into a large-scale Ads Platform, covering aspects like candidate selection, ranking, auction, optimization, and creative generation. The engineer will own and operate these revenue-driving systems.

Seeking exceptional Applied engineers to work on a high-priority project with ~600 million monthly users, focusing on recommendation systems, ranking algorithms, and search technologies. Responsibilities include designing and architecting recommendation algorithms, leveraging AI stacks, writing data pipelines and training jobs, iterating through user feedback and experimentation, and ensuring scalability and efficiency of ML systems. Requires knowledge of data infrastructure (Kafka, Clickhouse, Spark), experience implementing recommender systems/deep learning at industrial scale, and proficiency in DL frameworks (JAX, PyTorch). CUDA kernel experience is a plus.

This role is on the Grok Main Product team, responsible for the user-facing chat portal at grok.com and related experiences. The team builds highly scalable frontends, APIs, and features that handle tens of thousands of queries per second, aiming to make Grok an essential 'everything app' that amplifies human productivity. The role involves owning end-to-end features, collaborating with model and research teams, and shipping breakthroughs at pace.