Staff Data Scientist, Ads

Mozilla is a mission-driven technology company dedicated to keeping the internet open and accessible to all. We are seeking a Staff Data Scientist to join our Monetization Data Science team and help shape the future of our advertising business while upholding our commitment to user privacy.

Key responsibilities

• Serve as a lead Data Science partner for Mozilla’s Ads business, collaborating with Product, Engineering, Sales, and Finance to identify high-impact opportunities.
• Own complex analytical problems end-to-end, from framing business questions to driving actionable recommendations.
• Develop measurement frameworks for new advertising products, including success metrics, experimentation, and reporting.
• Analyze revenue and performance drivers to inform product and business strategy.
• Translate complex findings into clear insights for stakeholders ranging from technical teams to senior executives.

Requirements

• 8+ years of experience in data science, analytics, or applied quantitative roles with a track record of business-critical work.
• Experience in digital advertising or monetization, with an understanding of how product and revenue outcomes interact.
• Strong technical foundation in Python and SQL, with expertise in statistical, experimental, and analytical methods.
• Proven ability to independently frame ambiguous problems and drive work toward clear, pragmatic recommendations.
• Excellent communication skills and the ability to build trusted relationships across diverse teams.

What we offer

• Generous performance-based bonus plans and retirement contributions.
• Comprehensive medical, dental, and vision coverage.
• Annual professional development budget and quarterly well-being stipends.
• Flexible time off, including quarterly wellness days and birthday leave.
• Considerable paid parental leave and home office support.