Senior Data Scientist - Toronto - Mozilla

Description

Senior Data Scientist, Revenue and Business

Team: Strategy, Operations, Data & Ads Locations: Remote US

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Why Mozilla?

Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we're shaping the next 25 years of technology and helping to reclaim an internet built people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we're doing this while never losing our focus on our core mission – to make the internet better for people.

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren't beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms.

About this team and role:

The Revenue Data Science team partners with Business Development and Finance to evaluate revenue growth opportunities and translate usage data into business-relevant insights. The team's work informs prioritization, investment decisions, and long-term growth strategy across Firefox.

This Senior Data Scientist role is highly business-facing position focused on shaping ambiguous questions, guiding data-driven decisions, and ensuring analytical outputs are accurate and actionable. The role emphasizes judgment, communication, and influence, supported by strong technical execution.

What you'll do:

• Evaluate and compare multiple revenue growth opportunities to inform Business Development prioritization, investment decisions, and negotiation strategy
• Develop clear analytical frameworks to assess trade-offs, risks, and expected impact across competing options
• Produce executive-ready reporting and dashboards that translate complex analyses into concise, decision-oriented narratives
• Design measurement plans to evaluate new growth initiatives and validate assumptions over time
• Ensure high standards of data validation and accuracy for analyses surfaced to senior leadership

What you'll bring:

• 6+ years of experience in data science, analytics, or applied quantitative roles, with a track record of influencing business decisions through data
• Advanced proficiency in SQL and Python for analysis, modeling, and validation
• Strong business judgment and stakeholder management skills, including comfort assessing trade-offs and pushing back on assumptions when needed
• Practical experience with statistical analysis and experiment design, applied to real-world business problems
• Ability to operate effectively in fast-paced environments with multiple viable options, delivering directional insights with clear rationale
• High standards for data accuracy, validation, and reproducibility, particularly for executive-facing work
• 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)

About Mozilla

Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online.

Commitment to diversity, equity, inclusion, and belonging

Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company's core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions.

We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at to request accommodation.

We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose.