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Staff Data Scientist, Ads

Mozilla· Core Services
Apply on company site
Remotefull-timePosted 11mo ago

About the role

Senior data science role focusing on Mozilla's Ads business; partner across Product, Engineering, Sales, Finance, and leadership to identify high-impact opportunities, build measurement frameworks, and guide data-driven decisions while protecting user privacy.

Responsibilities

  • Serve as a lead Data Science partner for Mozilla’s Ads business, working across Product, Engineering, Sales, Finance, and senior leadership to identify and prioritize high-impact opportunities
  • Own complex analytical problems end-to-end, from framing the business question and determining the right approach to validating results, communicating recommendations, and driving follow-through
  • Develop measurement frameworks for new and evolving advertising products, including success metrics, experimentation, instrumentation, and reporting
  • Analyze advertising revenue and performance to identify key drivers, evaluate opportunities and trade-offs, and inform product and business decisions
  • Translate complex findings, assumptions, and uncertainty into clear recommendations for audiences ranging from technical partners to senior executives

Qualifications

  • 8+ years of experience in data science, analytics, or applied quantitative roles, with demonstrated ownership of complex, business-critical analytical work
  • Experience with digital advertising or a related monetization business, with an understanding of how product, user, advertiser, and revenue outcomes interact
  • Strong technical foundation in Python and SQL, with experience applying statistical, experimental, forecasting, and analytical methods to real-world business problems
  • Demonstrated ability to independently frame ambiguous problems, identify what matters, and drive work from an open-ended question through a clear recommendation
  • Excellent analytical judgment—balancing rigor with pragmatism, pressure-testing important results, setting realistic expectations, and communicating uncertainty appropriately
  • Proven ability to build trusted relationships and communicate complex or challenging findings to audiences ranging from technical partners to senior executives
  • Commitment to Mozilla values: Welcoming differences; Being relationship-minded; Practicing responsible participation; Having grit

Skills

Required:Data sciencePythonSQLStatistics / ExperimentationCommunication

Benefits

  • Generous performance-based bonus plans to all eligible employees - we share in our success as one team
  • Rich medical, dental, and vision coverage
  • Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute)
  • Quarterly all-company wellness days where everyone takes a pause together
  • Country specific holidays plus a day off for your birthday
  • One-time home office stipend
  • Annual professional development budget
  • Quarterly well-being stipend
  • Considerable paid parental leave
  • Employee referral bonus program
  • Other benefits (life/AD&D, disability, EAP, etc. - varies by country)
Last updated Sep 16, 2026. Interested? Apply on the company site.

About Mozilla

Internet for people, not profit

Mozilla is the not-for-profit behind the lightning fast Firefox browser. We put people over profit to give everyone more power online.

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