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Posted 11 mo agoFirst seen 24 d ago
Machine Learning Engineer, Ads
Posted by xAI on 3 December 2025, 335 days ago. Still on their Greenhouse board when we checked 1 h ago. Half of xAI's roles come down within 75 days.
What the posting is about
Join xAI to integrate Grok models into our Ads Platform. Own and operate systems driving majority of revenue. Requires 3+ years in large-scale AI-powered advertising products.
Read out of the posting
LevelNot stated
Experience asked3+ years
EmploymentFull time
LocationPalo Alto, CA
RemoteNot stated
Visa sponsorshipNot stated
SalaryNot published, and most postings do not
Posted2025-12-03
Found viagreenhouse, direct from their system
We saw it 10 months after it went up.
The posting, as the company wrote it
SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.
SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.
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:
3+ years of industry experience working on large-scale, high-throughput AI-powered advertising products
COMPENSATION AND BENEFITS:
$180,000 - $440,000 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.
SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice .
Copied from xAI’s own board, not rewritten.
Also open at xAI
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