Staff Data Scientist, Ads

About this role

Lead data science work supporting Mozilla’s advertising business, balancing revenue growth with its privacy-focused user experience. Frame and solve high-impact analytical problems, develop measurement approaches for advertising products, and guide business decisions through clear recommendations.

About the company

Mozilla builds open-source products and technologies, including Firefox, that prioritize privacy, security, and an open internet.

The team

Monetization Data Science team

Stack

What you'll do

• Partner with Product, Engineering, Sales, Finance, and senior leadership to identify and prioritize opportunities
• Own complex analytical work from problem framing through recommendations and follow-through
• Develop measurement frameworks, metrics, experimentation, instrumentation, and reporting for advertising products
• Analyze advertising revenue and performance to identify drivers, opportunities, and trade-offs
• Communicate findings, assumptions, and uncertainty to technical and executive audiences

What we're looking for

• 8+ years of experience in data science, analytics, or applied quantitative roles
• Experience with digital advertising or a related monetization business
• Strong Python and SQL skills
• Experience with statistical, experimental, forecasting, and analytical methods
• Ability to independently frame ambiguous problems and deliver actionable recommendations
• Strong analytical judgment and communication skills
• Ability to build trusted relationships across teams

Benefits

• Performance-based bonus plan
• Medical, dental, and vision coverage
• Retirement contributions with immediate vesting
• Quarterly company-wide wellness days
• Country-specific holidays and birthday day off
• One-time home office stipend
• Annual professional development budget
• Quarterly well-being stipend