Sr. Machine Learning Engineer, Ads

Xai · Palo Alto, CA · Engineering

Posted 2026-11-07

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SR. MACHINE LEARNING ENGINEER, ADS

We’re looking for exceptional engineers who want to join us on a new project to integrate Grok into all parts of our Ads Platform. We’re looking for individuals who have built exceptional advertising products and systems at a massive scale across bidding, auction, marketplace, ranking, prediction, and product. We’re bringing SpaceXSI's technology stack to Ads Platform and using it to transform our advertising stack.

RESPONSIBILITIES:

Leverage the latest Grok models to power all stages of our advertising stack, from candidate selection to ranking, auction, campaign optimization, creative generation, and advertiser experience

Own and operate systems and products, driving the majority of revenue

BASIC QUALIFICATIONS:

5+ years of industry experience working on large-scale, high-throughput AI-powered advertising products

PREFERRED SKILLS AND EXPERIENCE:

Experience in writing CUDA kernels

Skilled in one or more DL software frameworks such as JAX or PyTorch

Knowledge of data infrastructure like Kafka, Clickhouse, and Spark

COMPENSATION AND BENEFITS:

$180,000 - $330,000 USD

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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