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Staff Data Scientist, Firefox

1 month, 3 weeks ago
United States
Full-time
Lead
Data Scientist
Data Science and Analytics
Python SQL
Apply Now
Mozilla

Mozilla

Mozilla, the maker of Firefox, is a non-profit organization ensuring an open, safe, and accessible internet for all users worldwide.

Internet Software & Services
251-1K
Founded 2005
$2M raised
View All Jobs 45

Description

  • Own the analytical strategy for a major product area, including identifying high-leverage questions and defining the measurement framework.
  • Partner with product and engineering leadership to translate ambiguous business problems into analytical approaches and actionable recommendations.
  • Define north-star metrics and measurement strategies to set goals, evaluate progress, and inform trade-offs.
  • Design and oversee experiments and causal analyses to ensure methodological rigor and influence product decisions.
  • Develop and maintain deep understanding of user growth dynamics across acquisition, activation, and retention.
  • Own and contribute to forecasting and growth modeling efforts and translate model outputs into growth strategies.
  • Mentor and elevate other data scientists through code review, methodology guidance, and reusable analytical frameworks.
  • Represent data science in cross-functional forums and advocate for findings that may challenge prevailing assumptions.
  • Drive alignment across data science, data engineering, and product on data quality, metric definitions, and instrumentation.

Requirements

  • 8+ years of experience in data science, analytics, or applied quantitative analysis, with a track record of shaping product strategy through data.
  • Demonstrated ability to lead complex, cross-functional analytical initiatives from problem framing through stakeholder alignment to decision.
  • Deep expertise in experimentation (A/B testing) and causal inference, with strong judgment on when each method applies.
  • Advanced proficiency in SQL and Python for analysis, modeling, and validation.
  • Experience defining and owning product metrics that teams use to make decisions.
  • Strong ability to advocate for a position on what the data shows and revise conclusions when evidence changes.
  • Track record of mentoring or technically leading other data scientists.
  • Commitment to Mozilla’s values, including welcoming differences, being relationship-minded, practicing responsible participation, and having grit.
  • Experience in forecasting or growth modeling is preferred.
  • Remote work location indicated by #LI-REMOTE.

Benefits

  • Generous performance-based bonus plans for eligible employees.
  • Rich medical, dental, and vision coverage.
  • Generous retirement contributions with 100% immediate vesting.
  • Quarterly all-company wellness days.
  • 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.
  • Additional benefits such as life/AD&D, disability, and EAP coverage vary by country.
  • US salary range of $163,000-$218,000 for Tier 1 locations, $150,000-$200,000 for Tier 2 locations, and $138,000-$185,000 for Tier 3 locations.

Interested in this position?

Apply directly on the company website

Apply Now

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