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Trustpilot is a profitable, high-growth FTSE-250 company and the world's largest open customer review platform with 350+ million reviews and 60 million monthly active users. The company is headquartered in Copenhagen with operations across Amsterdam, Denver, Edinburgh, Hamburg, London, Melbourne, Milan, and New York.
As Senior Quantitative UX Researcher, you will be the expert on measuring how people and businesses experience trust on Trustpilot—from reading reviews to deciding the platform is worth paying for. You will own the quantitative research agenda for your product areas, set the bar for statistical rigor across the team, and partner with Data Science to build a shared measurement culture.
Key responsibilities include:
**Research Strategy & Execution**
- Design and own the quantitative research roadmap for product areas, including attitudinal measurement, behavioral analysis, and longitudinal tracking
- Lead large-scale surveys (validated scales, NPS derivatives, trust-perception metrics) and log-data/behavioral analytics (funnels, A/B tests, cohort and retention modeling)
- Build measurement frameworks defining what 'good' looks like for review-reading, purchase-decision, and business-subscription journeys, tracking them over time
**Quantitative Methods**
- Lead advanced quantitative research—surveys, behavioral analytics, experimentation, predictive modeling—using statistical rigor from validated instrument design through automated, auditable analysis pipelines (Python/R/SQL)
- Pioneer AI-assisted techniques (e.g., LLM-assisted open-text analysis) where they genuinely sharpen work, evaluating AI tooling critically for validity and bias
**Standards, Influence & Coaching**
- Partner with Data Science and Analytics on shared definitions and data pipelines; hold the bar on study design and statistical rigor across the team
- Translate statistical output into clear, decision-forcing narratives that PMs, designers, and engineers act on
- Coach other researchers in quantitative methods, raising the team's statistical literacy through pairing and structured feedback
Trustpilot offers flexible working options, competitive compensation plus bonus, 25 days holiday (30 after 1 year), two paid volunteering days annually, learning and development through Trustpilot Academy and Blinkist, comprehensive health package, pension, Headspace access, paid parental leave, and a central Copenhagen office with coffee bar, canteen, and social activities.
**Requirements**
- 4+ years of UX research experience with strong specialization in quantitative methods and complex, broad-scope work
- Strong survey methodology (instrument design, sampling, psychometric validation) and statistical grounding (regression, factor/cluster analysis, significance testing)
- Hands-on proficiency in Python, R, or SQL, and direct experience with large behavioral datasets (e.g., Amplitude, Looker, BigQuery)
- Track record of quant research that measurably shaped product or business decisions, including A/B testing methodology
- Hands-on experience experimenting with AI tools in research workflows (e.g., LLM-assisted analysis, AI-assisted qual coding, or evaluating AI-powered research tooling) with critical eye on validity and bias
- AI-curious practitioner who can speak critically about AI's limits and power; collaborates fluently with qual, data science, and product analysts
- Excellent communication and interpersonal skills; ability to work closely with diverse teams and present data-driven findings in engaging, accessible ways
