Mozilla

Senior Staff Quantitative User Researcher

Mozilla

full-time

Posted on:

Location Type: Remote

Location: United States

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Job Level

Senior

Tech Stack

SQL

About the role

  • Own strategic quantitative research initiatives from scoping business needs and designing surveys to synthesizing data and communicating actionable recommendations to influence product decisions.
  • Utilize a variety of research methods to embed quantitative insights into the end-to-end product development lifecycle (e.g., discovery opportunity sizing, prioritization, concept testing, tracking and measurement after launch).
  • Partner cross-functionally at a strategic level with product, design, engineering, data science, and marketing to develop and own a research roadmap, identify high-impact research opportunities, and align insights to business priorities.
  • Analyze and translate complex data sources (e.g., surveys, behavioral data, and market intelligence) to build cohesive, evidence-based perspectives that guide product decisions.
  • Champion user-centered decision-making by embedding research into product strategy, advocating for user needs, and influencing leaders across functions.
  • Elevate the quantitative practice by mentoring peers, refining methods and tools, and scaling approaches that increase the visibility and impact of user insights across Firefox.

Requirements

  • 8+ years of experience in user research, product research, or an applied research setting or similar, with a strong focus on quantitative research.
  • Extensive experience leading survey research across multiple phases of the product development lifecycle, using quantitative insights to influence product decisions.
  • Deep expertise in empirical survey methods (e.g., planning, sampling, weighting, statistical analysis) and applications (e.g., discovery, product needs, prioritization, concept testing, panel surveys, intercept surveys, write-in analysis, post-release measurement).
  • Highly proficient in R for statistical programming and analyzing survey data.
  • Extensive hands-on experience manipulating behavioral data using SQL and integrating into survey methods to tell a cohesive user-focused story.
  • Demonstrated ability to craft compelling narratives using quantitative data and visualizations.
  • Demonstrated success operating in fast-paced, agile environments, adapting to shifting priorities while maintaining research impact.
  • Strong judgment in balancing research depth and speed, delivering insights that are both actionable and impactful for product and business decisions.
  • Hands-on experience with mixed methods and qualitative research, able to collaborate with qualitative researchers to enable mixed methods research designs and roadmaps.
  • Collaborative and influential communicator, skilled at building partnerships with cross-functional teams and driving alignment through evidence-based insights.
  • Experienced in supporting iterative, user-centered product development, ensuring research continuously informs design and strategy.
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)
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
quantitative researchsurvey researchempirical survey methodsstatistical analysisRSQLdata visualizationmixed methods researchuser-centered designproduct development lifecycle
Soft Skills
collaborative communicationinfluential communicationstrategic thinkingmentoringadaptabilityjudgmentstorytellingpartnership buildingalignment drivinguser advocacy