Senior Marketing Data Scientist — Growth & Attribution

Harnham; Miami (FL); Hybrid; USD 95,000 - 145,000; Full time

Job summary

Harnham, a fintech-focused analytics partner, is seeking a Senior Marketing Data Scientist in a hybrid Miami role to scale marketing analytics and smarter customer acquisition decisions. You will connect paid media performance to acquisition, funded deals, credit performance, and profitability, partnering across marketing and leadership.

The role offers ownership and impact in a fast-growing environment, with cross-functional collaboration across marketing, credit, product, and analytics to

Qualifications

• 4–7+ years in Marketing Analytics or related fields.
• Strong SQL and Python skills.
• Deep understanding of paid media analytics (Google Ads & Meta).
• Experience with acquisition funnels, attribution, and experimentation.
• Strong analytical and statistical communication to stakeholders.

Responsibilities

• Analyze paid acquisition performance across channels, particularly Google Ads and Meta, to optimize marketing spend and ROI.
• Own full-funnel analytics, connecting campaign performance and lead generation to funded customers, acquisition quality, and downstream business outcomes.
• Develop and enhance marketing attribution, measurement frameworks, and customer acquisition models.
• Design and evaluate A/B tests and experiments to measure marketing effectiveness and identify growth opportunities.
• Leverage SQL, Python, and statistical techniques to uncover insights, build scalable reporting, and support commercial decision-making.
• Partner with marketing, credit, product, and analytics stakeholders to translate data into actionable recommendations.

Skills

SQL

Python

Paid media analytics

Attribution modeling

Tools

GA4

Google Ads

Meta (Facebook)

Job description

Harnham, a fintech-focused analytics partner, is seeking a Senior Marketing Data Scientist in a hybrid Miami role to scale marketing analytics and smarter customer acquisition decisions. You will connect paid media performance to acquisition, funded deals, credit performance, and profitability, partnering across marketing and leadership.

The role offers ownership and impact in a fast-growing environment, with cross-functional collaboration across marketing, credit, product, and analytics to