Master's or PhD in Data Science, Statistics, Computer Science, or related field
2+ years of quantitative analysis experience, preferably in an internet or consumer-focused organization
Experience with applied statistical modeling on large data sets
Proficient in SQL for data extraction and management
Skilled in creating forecasting, causal inference, and time series models
Proficient in Python or similar programming languages
Strong communication skills for stakeholder engagement
Commitment to diversity and a global perspective in research.
Responsibilities
Design and scale revenue forecasting models to drive growth strategies
Build and maintain comprehensive data sets and forecasting pipelines
Develop dashboards in Looker for data exploration and performance tracking
Collaborate with teams to create ROI frameworks for data-driven insights
Conduct deep analyses into user engagement and monetization
Translate complex business questions into clear analytical frameworks
Promote data quality and standardize key metrics across functions.
Encourage a data-driven culture through best practices and experimentation.
Benefits
Performance-based bonus plans for all eligible employees
Comprehensive medical, dental, and vision coverage
Generous retirement contributions with immediate 100% vesting
Quarterly wellness days for staff to take a collective pause
Country-specific holidays plus an additional day off for your birthday
Home office stipend for remote work setup
Annual professional development budget
Quarterly well-being stipend
Paid parental leave for new parents
Referral bonus program for employee recommendations
Full Job Description
About this team and role:
The Monetization Data Science team partners closely with Product, Engineering, Sales, Finance, and senior leadership to understand and grow Mozilla's advertising business while protecting the user privacy experience that makes Firefox unique.
Mozilla's Ads business is growing quickly, with new products, markets, and sales offerings creating significant opportunities for Data Science to shape how the business evolves. We're looking for a Staff Data Scientist who can serve as a trusted data partner to the Ads organization-identifying the questions that matter, building the measurement and analytical approaches needed to answer them, and helping teams make sound decisions in a fast-moving and ambiguous environment.
This is a highly visible role that requires strong technical and business judgment, excellent communication, and the ability to move comfortably between deep analytical work and executive-level decision-making.
What you'll do:
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
What you'll bring:
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 our values:
Welcoming differences
Being relationship-minded
Practicing responsible participation
Having grit
What you'll get:
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)
Hiring Ranges:
US Tier 1 Locations
$163,000-$218,000 USD
US Tier 2 Locations
$150,000-$200,000 USD
US Tier 3 Locations
$139,000-$185,000 USD
About Mozilla
Mozilla is a global community of technologists, thinkers, and builders working together to keep the internet open and accessible to all. The company is best known for its flagship product, the Firefox web browser, which is used by millions of people around the world. In addition to its browser, Mozilla also develops a range of other products and services, including a mobile operating system, a password manager, and a virtual private network (VPN) service.
