Senior Marketing Data Engineer - Performance Growth Analytics

Cursor; San Francisco (CA); On-site; USD 140,000 - 220,000; Full time

Job summary

SpaceXSI is building a dedicated Data Marketing Analytics function in San Francisco to own measurement and analysis of performance marketing for Grok, Grok Bot, and AI products. You will partner with Marketing leadership to scale paid acquisition across 10+ channels, while establishing rigorous measurement foundations and attribution.

You will design experiments, maintain the media-mix model, and ensure the LTV signal used by networks is accurate and drift-free.

Qualifications

• 7+ years of experience in marketing analytics, marketing science, or data science supporting paid acquisition.
• Strong SQL and Python skills and ability to build data pipelines and predictive models.
• Experience running hold-out or incrementality tests and working with MMM and attribution models in production.
• Understanding of how ad platforms report, optimize, and ingest conversion signals; do not take platform numbers at face value.
• Excellent communication with channel managers, Finance, and leadership; honest about what data shows.
• Self-directed and comfortable owning ambiguous problems end to end.

Responsibilities

• Build and own the measurement layer for performance marketing: economics and performance by channel, campaign, audience, geo, and creative, across PLG and Sales-Led revenue.
• Design incrementality tests with channel owners and use results to move budget and calibrate attribution.
• Stand up and maintain the media-mix model, guiding allocation decisions on channels to scale or cut.
• Own the quality of the predictive LTV signal sent to Meta, Google, and other networks; validate against realized revenue.
• Keep pipeline source and campaign attribution separate and clean, avoiding double counting of revenue.

Skills

Marketing analytics

SQL

Python

Incrementality testing

MMM & attribution

Data storytelling

Job description

SpaceXSI is building a dedicated Data Marketing Analytics function in San Francisco to own measurement and analysis of performance marketing for Grok, Grok Bot, and AI products. You will partner with Marketing leadership to scale paid acquisition across 10+ channels, while establishing rigorous measurement foundations and attribution.

You will design experiments, maintain the media-mix model, and ensure the LTV signal used by networks is accurate and drift-free.