Staff Quantitative User Researcher

📍 Job Overview

Job Title: Staff Quantitative User Researcher

Company: Mozilla

Location: Remote US

Job Type: Full-Time

Category: User Research / Product Analytics

Date Posted: April 28, 2026

Experience Level: 7+ Years

Remote Status: Fully Remote

🚀 Role Summary

• Lead end-to-end quantitative research initiatives from business needs definition to actionable insight delivery, directly influencing product strategy and roadmaps.

• Partner cross-functionally with product management, design, engineering, data science, and marketing to embed user-centered decision-making into product development.

• Analyze and synthesize complex data from surveys, behavioral metrics, and market intelligence to build comprehensive user perspectives.

• Elevate the quantitative research practice at Mozilla by mentoring peers, refining methods, and scaling impact across the Firefox product suite.

• Drive strategic product decisions by translating quantitative findings into compelling narratives and visualizations for diverse stakeholders.

📝 Enhancement Note: This role is positioned as a "Staff" level, indicating a senior individual contributor with significant autonomy and influence. The focus on "strategic, end-to-end quantitative research initiatives" and "partnering cross-functionally at a strategic level" suggests a need for strong leadership, strategic thinking, and the ability to influence without direct authority, common in senior operations and analytics roles.

📈 Primary Responsibilities

• Design, execute, and analyze large-scale quantitative research studies, including surveys, segmentation, and tracking studies, to understand user needs, behaviors, and motivations.

• Develop and refine research methodologies, including sampling strategies, questionnaire design, statistical analysis techniques, and data interpretation frameworks.

• Collaborate with data science and engineering teams to integrate survey data with behavioral analytics, creating a holistic view of user engagement and product performance.

• Translate complex statistical findings into clear, concise, and actionable recommendations for product, design, and business stakeholders, supported by compelling data visualizations.

• Proactively identify high-impact research opportunities by staying abreast of industry trends, competitive landscape, and evolving user needs within the open-source and web browser market.

• Mentor junior researchers and contribute to the development of best practices and standardized processes for quantitative research within the Firefox organization.

• Advocate for user-centered design and data-driven decision-making by presenting research findings and insights to senior leadership and cross-functional teams.

• Support the development of a robust research roadmap that aligns with product strategy, business objectives, and emerging user insights.

• Contribute to the refinement and adoption of research tools and technologies to enhance efficiency and impact of quantitative studies.

• Facilitate mixed-methods research by collaborating effectively with qualitative researchers to triangulate findings and provide richer insights.

📝 Enhancement Note: The emphasis on "end-to-end quantitative research initiatives" and "driving decision-making" highlights the need for a candidate who can manage projects autonomously and deliver direct business impact, a crucial aspect of senior operations roles. The responsibility to "elevate the quantitative research practice" points towards a leadership or mentorship component within the role.

🎓 Skills & Qualifications

Education: A Bachelor's or advanced degree in a quantitative field such as Psychology, Statistics, Computer Science, Human-Computer Interaction, Economics, Sociology, or a related discipline is typically expected. While not explicitly stated, a Master's or Ph.D. is often preferred for advanced research roles.

Experience: 7+ years of progressive experience in user research, product research, market research, or a closely related field, with a demonstrated specialization in quantitative methodologies.

Required Skills:

• Extensive experience in designing, executing, and analyzing large-scale survey research across the entire product development lifecycle.

• Deep expertise in empirical survey methodologies, including survey design, sampling techniques, weighting strategies, and statistical analysis.

• Proven proficiency in applying quantitative survey applications such as product needs assessment, audience segmentation, tracking studies, concept testing, and panel/intercept surveys.

• Highly proficient in R for statistical programming, data manipulation, and advanced survey data analysis.

• Demonstrated experience using SQL to query and integrate behavioral data with survey responses for comprehensive user insights.

• Ability to craft compelling narratives and data visualizations that clearly communicate complex quantitative findings to diverse audiences.

• Proven success operating effectively in fast-paced, agile environments with the ability to adapt to shifting priorities while maintaining research rigor and impact.

• Strong judgment in balancing research depth with speed to deliver timely and actionable insights.

• Excellent communication and collaboration skills, with a proven ability to build strong partnerships with cross-functional teams and drive alignment.

Preferred Skills:

• Hands-on experience conducting qualitative research.

• Familiarity with other statistical software or programming languages relevant to data analysis.

• Experience working within the open-source software ecosystem or with consumer-facing technology products.

• Knowledge of product analytics platforms and tools.

• Experience in mentoring or leading junior researchers.

📝 Enhancement Note: The explicit requirement for R and SQL, coupled with the need for deep expertise in survey methodologies, indicates a highly technical research role. The "7+ years" experience level suggests that candidates should possess a strong portfolio demonstrating end-to-end project ownership and significant impact.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate a portfolio showcasing at least 3-5 significant quantitative research projects from inception to impact.

• For each project, clearly articulate the business problem or user need, the research objectives, the methodologies employed (survey design, sampling, analysis), and the key findings.

• Quantify the impact of your research on product decisions, user experience improvements, or business outcomes, using metrics and data where possible (e.g., "led to a 15% increase in feature adoption," "informed a product pivot that reduced churn by X%").

• Highlight your proficiency in using R for statistical analysis and SQL for data integration within your project examples.

Process Documentation:

• Showcase examples of research plans, survey instruments, analysis scripts (e.g., R code snippets), and final reports or presentations.

• Detail your process for defining research questions, selecting appropriate methodologies, and managing research timelines in agile environments.

• Illustrate your approach to collaborating with cross-functional teams (product managers, designers, engineers, data scientists) throughout the research process.

• Provide evidence of your ability to adapt research methods and timelines based on project constraints and evolving business needs.

📝 Enhancement Note: For a quantitative researcher, the portfolio is paramount. It needs to clearly demonstrate not just technical skills in R and SQL, but also strategic thinking, problem-solving abilities, and the capacity to translate data into actionable business insights. The emphasis on "end-to-end" ownership and "impact" is key.

💵 Compensation & Benefits

Salary Range: Based on the provided hiring ranges, the estimated salary for a Staff Quantitative User Researcher in the US will vary by location tier.

• US Tier 1 Locations: $149,000 - $199,000 USD per year

• US Tier 2 Locations: $137,000 - $183,000 USD per year

• US Tier 3 Locations: $127,000 - $169,000 USD per year

📝 Enhancement Note: The salary ranges provided by Mozilla are broken down into three tiers, likely reflecting cost of living and market rates across different US regions. Tier 1 typically includes major tech hubs, Tier 2 encompasses other significant metropolitan areas, and Tier 3 covers lower cost-of-living regions. Candidates should research which tier their location falls into.

Benefits:

• Generous performance-based bonus plans, fostering a team-oriented approach to success.

• Comprehensive medical, dental, and vision coverage for employees and their dependents.

• Substantial retirement contributions with immediate 100% vesting, providing strong long-term financial security.

• Quarterly all-company wellness days, promoting work-life balance and employee well-being.

• Country-specific holidays and an additional day off for employee birthdays.

• One-time home office stipend to equip a productive remote workspace.

• Annual professional development budget to support continuous learning and skill enhancement.

• Quarterly well-being stipend for personal wellness activities and resources.

• Considerable paid parental leave, supporting new parents.

• Employee referral bonus program, encouraging team growth.

• Additional benefits including life/AD&D insurance, disability insurance, and Employee Assistance Program (EAP), which may vary by country.

Working Hours: The role is typically based on a standard 40-hour work week, common for full-time positions. However, remote work often allows for flexibility in scheduling, provided that core collaboration hours and project deadlines are met.

📝 Enhancement Note: Mozilla offers a robust benefits package with a strong emphasis on employee well-being, professional development, and financial security, including immediate vesting on retirement contributions and a performance-based bonus structure. The inclusion of wellness days and stipends highlights a commitment to work-life balance.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, specifically focused on open-source software, internet services, and digital privacy. Mozilla is known for its commitment to an open internet and user-centric technology development, distinguishing it from many profit-driven tech companies.

Company Size: Mozilla Corporation is a significant organization, with the description mentioning "more than 225 million people around the world using our products each month." While exact employee numbers aren't provided in the raw data, the scale of their products and global reach suggests a mid-to-large sized tech company with a distributed workforce.

Founded: The company's history spans over 25 years, with Mozilla Corporation being a wholly owned subsidiary of the non-profit Mozilla Foundation. This structure influences its mission-driven approach, prioritizing impact over shareholder profit.

Team Structure:

• The Firefox User Research team operates within the broader Firefox product organization, likely comprising both quantitative and qualitative researchers.

• Researchers collaborate closely with product managers, designers, engineers, data scientists, and product marketers, forming agile, cross-functional product teams.

• The "Staff" designation implies a senior individual contributor role, potentially with informal leadership or mentorship responsibilities within the research team.

Methodology:

• The team employs a human-centered approach, leveraging both quantitative and qualitative research to understand user needs and inform product strategy.

• Emphasis is placed on evidence, data, and insights derived from rigorous research methods to drive decision-making.

• Quantitative research methods are central to this role, focusing on understanding user behaviors and needs at scale through surveys, behavioral data analysis, and market intelligence.

• Collaboration with data science is key for integrating diverse data sources and building cohesive perspectives.

Company Website: https://www.mozilla.org/

📝 Enhancement Note: Mozilla's unique non-profit backing and mission-driven culture are significant differentiators. For operations and research professionals, this means a focus on user impact and open-source principles, potentially leading to different prioritization and decision-making frameworks compared to purely commercial entities.

📈 Career & Growth Analysis

Operations Career Level: This role is at the "Staff" level, signifying a senior individual contributor with deep expertise and significant autonomy. It is a key position within the user research function, expected to drive strategic initiatives and mentor others. This level typically involves influencing product roadmaps, tackling complex research problems, and contributing to the overall research strategy and practice development.

Reporting Structure: The Staff Quantitative User Researcher will report to a lead or manager within the User Research team. They will work closely with a variety of cross-functional teams, including Product Management, Design, Engineering, Data Science, and Product Marketing, forming strong collaborative relationships to drive research insights into product development.

Operations Impact: The primary impact of this role is to ensure that product decisions are informed by robust, data-driven user insights. By understanding user needs, motivations, and behaviors at scale, this role directly influences product strategy, design choices, feature prioritization, and overall user experience, ultimately contributing to the success and mission of Firefox and Mozilla.

Growth Opportunities:

• Skill Specialization: Deepen expertise in advanced quantitative methods, statistical modeling, and specific research areas relevant to web technologies and user behavior.

• Leadership & Mentorship: Grow into a formal leadership role (e.g., Research Lead, Manager) or become a recognized subject matter expert and mentor within the quantitative research community at Mozilla.

• Strategic Influence: Take on more complex and strategic research initiatives, influencing long-term product vision and business strategy.

• Cross-Functional Development: Gain broader experience by working across different product areas and collaborating with diverse teams, enhancing understanding of the entire product development lifecycle.

• Industry Contribution: Contribute to the advancement of user research practices through internal knowledge sharing, presentations, or participation in industry forums.

📝 Enhancement Note: The "Staff" title suggests a clear career path beyond this role, potentially into management or principal researcher positions, emphasizing significant impact and strategic contribution. Growth opportunities are geared towards deepening technical expertise and expanding influence within the organization.

🌐 Work Environment

Office Type: This is a fully remote position, allowing employees to work from their home office. Mozilla fosters a distributed work environment, emphasizing flexibility and autonomy.

Office Location(s): Remote within the United States. While specific office locations are not detailed, the company operates globally and has a significant presence in the US. The remote nature allows for talent acquisition across various regions within the country.

Workspace Context:

• Collaborative Environment: While remote, the role emphasizes strong cross-functional collaboration. This is facilitated through various digital communication and collaboration tools (e.g., Slack, video conferencing, shared documents).

• Tools & Technology: Access to necessary research tools, statistical software (R, SQL), and collaboration platforms is expected. The role will involve working with data science tools and potentially product analytics platforms.

• Team Interaction: Opportunities for team interaction will occur through virtual meetings, team syncs, and collaborative working sessions, fostering a sense of community despite the remote setup.

Work Schedule: The role is full-time, typically around 40 hours per week. While remote work offers flexibility, candidates are expected to manage their schedules to meet project deadlines and participate in core team meetings, which may require accommodating various US time zones.

📝 Enhancement Note: The fully remote nature of this role is a key aspect of the work environment. Candidates should be comfortable with asynchronous communication and self-directed work, while also being adept at building relationships and collaborating effectively through digital channels.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or hiring manager will review applications and resumes, looking for alignment with the core requirements, particularly the 7+ years of experience and quantitative research expertise.

• Hiring Manager Interview: A conversation with the hiring manager to delve deeper into your experience, research philosophy, and understanding of the role's strategic impact. Expect questions about past projects and how you approach complex research problems.

• Portfolio Review: A dedicated session where you will present your portfolio, showcasing 2-3 key quantitative research projects. Be prepared to discuss your process, findings, and the impact of your work. This is a critical stage to demonstrate your technical skills (R, SQL) and strategic thinking.

• Cross-Functional Interviews: Interviews with peers and stakeholders from product management, design, and data science. These will assess your collaboration style, ability to translate insights for different audiences, and your fit within agile team dynamics.

• Staff-Level Interview: An interview focusing on strategic thinking, leadership potential, mentorship capabilities, and your ability to influence at a senior level. Questions about your vision for quantitative research at Mozilla may be asked.

• Final Interview/Debrief: A concluding discussion with senior leadership or the hiring manager to finalize the decision.

Portfolio Review Tips:

• Curate your portfolio to highlight your strongest quantitative research projects, emphasizing end-to-end ownership and measurable impact.

• For each project, clearly define the problem, your approach (methodology, tools like R and SQL), key findings, and the resulting actions or business outcomes.

• Be prepared to walk through your R code or SQL queries if asked, demonstrating your technical proficiency.

• Use compelling visualizations to present your data and findings effectively.

• Practice explaining complex technical concepts in a way that is accessible to non-researchers.

Challenge Preparation:

• While not explicitly mentioned, be prepared for a potential take-home assignment or a live case study focused on a research problem. This might involve designing a survey, analyzing a dataset, or outlining a research plan.

• Practice articulating your thought process for problem-solving and decision-making under time constraints.

• Familiarize yourself with Mozilla's products, particularly Firefox, and understand its competitive landscape and mission.

• Prepare to discuss how you would approach a hypothetical research challenge relevant to browser usage, user privacy, or feature adoption.

📝 Enhancement Note: The interview process emphasizes a deep dive into quantitative skills and strategic impact. The portfolio review is a critical component, requiring candidates to demonstrate not just technical ability but also the capacity to drive business outcomes through research.

🛠 Tools & Technology Stack

Primary Tools:

• Statistical Programming: R (highly proficient) is a core requirement for statistical analysis of survey data.

• Data Querying: SQL is essential for integrating behavioral data with survey responses.

• Survey Platforms: Experience with various survey design and deployment tools (e.g., Qualtrics, SurveyMonkey, or internal tools) is expected.

• Data Visualization Tools: Proficiency in creating compelling visualizations using libraries within R (e.g., ggplot2), or dedicated tools (e.g., Tableau, Looker) for communicating insights.

Analytics & Reporting:

• Behavioral Data Analysis: Experience integrating and analyzing behavioral data, likely from product analytics platforms.

• Market Intelligence Tools: Familiarity with tools or methods for gathering and analyzing market data.

• Reporting Dashboards: Ability to contribute to or leverage dashboards for tracking key metrics and research insights.

CRM & Automation:

• While not directly a CRM role, understanding how user research integrates with CRM data or product usage data is beneficial.

• Familiarity with workflow automation concepts might be relevant for research operations or scaling research processes.

• Integration Tools: Experience with how different data sources (survey, behavioral, market) are integrated for analysis.

📝 Enhancement Note: The explicit mention of R and SQL as required skills makes them central to this role's technical stack. Proficiency in these tools, along with survey platforms and data visualization, is non-negotiable.

👥 Team Culture & Values

Operations Values:

• Welcoming Differences: Embracing diverse perspectives and backgrounds, fostering an inclusive environment for research and collaboration.

• Being Relationship-Minded: Building strong, collaborative relationships with cross-functional teams, understanding their needs, and working together towards shared goals.

• Practicing Responsible Participation: Engaging in research ethically and responsibly, ensuring user privacy and data integrity, and contributing thoughtfully to team discussions and projects.

• Having Grit: Demonstrating perseverance, resilience, and a proactive approach to tackling complex research challenges and driving initiatives to completion.

• User-Centricity: A fundamental commitment to understanding and advocating for the user, ensuring their needs and experiences are at the forefront of product development.

• Data-Driven Decision Making: A strong reliance on empirical evidence and quantitative insights to inform strategy and product choices.

Collaboration Style:

• Cross-Functional Integration: Actively partnering with product, design, engineering, and marketing teams to ensure research is integrated seamlessly into the product development lifecycle.

• Evidence-Based Communication: Presenting findings and recommendations with clear, compelling data to influence stakeholders and drive consensus.

• Mentorship & Knowledge Sharing: Willingness to share expertise, mentor peers, and contribute to the collective growth of the research function.

• Agile Adaptability: Working effectively in dynamic, fast-paced environments, adapting research plans and methodologies as needed while maintaining research rigor.

📝 Enhancement Note: Mozilla's specific values ("Welcoming differences," "Being relationship-minded," "Practicing responsible participation," "Having grit") are integrated into the team culture. Candidates should demonstrate how their work ethic and collaborative approach align with these principles.

⚡ Challenges & Growth Opportunities

Challenges:

• Scaling Research Impact: Ensuring that quantitative insights reach and influence decision-makers across a large organization, especially in a fully remote setting.

• Balancing Depth and Speed: Effectively managing research projects to deliver timely, actionable insights in a fast-paced agile environment without compromising methodological rigor.

• Integrating Diverse Data: Synthesizing findings from surveys, behavioral data, and market intelligence into cohesive and impactful narratives that drive strategic decisions.

• Advocating for User Needs: Continuously championing user-centered perspectives and data-driven approaches within product teams that may have competing priorities.

• Navigating Open-Source Dynamics: Understanding the unique challenges and opportunities of conducting research within an open-source development environment.

Learning & Development Opportunities:

• Advanced Analytics: Opportunity to deepen expertise in statistical modeling, machine learning applications in research, and advanced causal inference techniques.

• Methodological Innovation: Contribute to refining and developing new quantitative research methodologies and best practices within Mozilla.

• Cross-Functional Leadership: Develop skills in strategic influencing, stakeholder management, and leading research initiatives that span multiple product areas.

• Mentorship Programs: Participate in or lead mentorship initiatives, developing leadership and coaching capabilities.

• Industry Engagement: Potential to attend conferences, present research findings, or contribute to industry discussions on quantitative user research.

📝 Enhancement Note: The challenges are framed around the complexities of senior-level research in a large tech organization, particularly in a remote, mission-driven, and open-source context. Growth opportunities are geared towards leadership, advanced technical skills, and strategic influence.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you led a complex, end-to-end quantitative research initiative from business problem to actionable recommendation. What was the outcome?" (Focus on your process, use of R/SQL, and impact.)

• "How do you approach integrating behavioral data with survey responses to create a holistic understanding of user needs?" (Prepare an example showcasing this skill.)

• "Imagine we're considering a major product change in Firefox. How would you design a quantitative research plan to assess user appetite and potential impact?" (Demonstrate your strategic thinking and methodological approach.)

• "How do you balance the need for research depth with the demands of an agile development cycle?" (Highlight your judgment and prioritization skills.)

Company & Culture Questions:

• "What excites you about Mozilla's mission and our commitment to an open internet?" (Research Mozilla's values and recent initiatives.)

• "How do your personal values align with Mozilla's values: Welcoming differences, Being relationship-minded, Practicing responsible participation, and Having grit?" (Provide specific examples.)

Portfolio Presentation Strategy:

• Structure: Organize your presentation logically, starting with the business context, research objectives, methodology, key findings, and ending with impact and learnings.

• Data Storytelling: Weave a narrative that clearly communicates the "why," "what," and "so what" of your research. Use data visualizations effectively to support your story.

• Technical Depth: Be prepared to briefly explain your R code or SQL queries if asked, demonstrating your technical proficiency without getting lost in jargon.

• Impact Focus: Quantify the impact of your research whenever possible. Highlight how your work influenced product decisions, user experience, or business metrics.

• Collaboration: Discuss how you partnered with product managers, designers, and engineers throughout the research process.

• Conciseness: Respect time limits and focus on the most critical aspects of your projects.

📝 Enhancement Note: Interview preparation should focus on demonstrating not only technical acumen in quantitative research (R, SQL) but also strategic thinking, collaboration, and the ability to drive tangible business impact, aligning with the senior "Staff" level expectations.

📌 Application Steps

To apply for this operations position:

• Submit your application through the provided link on the Mozilla job board.

• Curate Your Portfolio: Select 2-3 of your most impactful quantitative research projects. Ensure each project clearly demonstrates your end-to-end process, your proficiency with R and SQL, and the measurable outcomes or influence your research had on product decisions. Prepare concise visual aids for each case study.

• Tailor Your Resume: Highlight experience directly relevant to quantitative research, survey design, statistical analysis, R, and SQL. Quantify achievements and responsibilities using metrics where possible, focusing on impact and influence.

• Prepare Your Presentation: Practice presenting your portfolio projects. Focus on clear storytelling, data visualization, and articulating the business impact of your work. Be ready to discuss your methodology and decision-making process.

• Research Mozilla and Firefox: Understand Mozilla's mission, its products (especially Firefox), its unique culture, and its commitment to an open internet. Prepare to articulate why you are a good cultural fit and how your skills can contribute to their goals.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.