AI Engineer and Researcher - Ads

xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. The team is small, highly motivated, and focused on engineering excellence with a flat organizational structure. Employees are expected to be hands-on, contribute directly to the company’s mission, and have strong communication skills. The role involves integrating Grok into all parts of the Ads Platform, working on large-scale advertising products and systems including bidding, auction, marketplace, ranking, prediction, and product. Responsibilities include leveraging Grok models to power all stages of the advertising stack, owning and operating systems and products that drive the majority of revenue. Candidates should have 3+ years of industry experience with AI-powered advertising products. The tech stack includes Python, Jax, and Rust. The team works primarily from the office in Palo Alto 5 days a week but allows work-from-home days when required. The interview process includes a phone interview, two technical interviews, a project deep-dive interview, and a meet and greet with the team. Final interviews are conducted in person.