Senior Quantitative UX Researcher

Trustpilot, Inc.; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Flexible hours

Bonus

25 days holiday

Volunteer days

Learning & development

Pension & life insurance

Parental leave

Cycle to work

Job summary

Trustpilot is seeking a Senior UX Researcher to lead the quantitative research agenda across product areas, shaping decisions with rigorous analysis and robust measurement, from attitudinal surveys to behavioural analytics. You will partner with Data Science to ensure scalable, auditable pipelines and champion AI-assisted techniques with a critical eye on bias.

You will work with PMs, designers and engineers to translate complex statistics into clear narratives, mentor colleagues in quantitative

Qualifications

• 4+ years of UX research experience with quantitative focus.
• Strong survey methodology and psychometric validation.
• Proficiency in Python, R or SQL with experience on large behavioural datasets.
• Track record of quantitative research shaping product or business decisions, including A/B testing.
• Experience evaluating AI-powered research tooling with attention to validity and bias.

Responsibilities

• Design and own the quantitative research roadmap for product areas.
• Lead large-scale surveys and log-data/behavioural analytics.
• Build measurement frameworks for reading, purchase and subscription journeys and track over time.
• Conduct advanced quantitative analyses and predictive modelling with rigorous methods.
• Pioneer AI-assisted techniques in research workflows while assessing validity and bias.
• Collaborate with Data Science to align data pipelines and statistical standards.
• Translate outputs into clear, decision-forcing narratives for PMs, designers and engineers.
• Coach teammates to raise statistical literacy through paired work.

Skills

UX research

Quantitative methods

Survey methodology

Statistical analysis

Python

R

SQL

A/B testing

AI tools in research

Communication skills

Tools

Amplitude

Looker

BigQuery

Job description

At Trustpilot, we're on an incredible journey. We're a profitable, high-growth FTSE-250 company with a big vision: to become the universal symbol of trust. We run the world's largest open customer review platform, and while we've come a long way, there's still so much exciting work to do. Come join us at the heart of trust! We're a leading online reviews platform, free and open to all. Our mission is to be a universal symbol of trust. We are well on our way - but there's still an exciting journey ahead of us. Do you want to join us at the heart of trust? We're currently looking for a Senior UX researcher to join our team at Trustpilot. Our goal is simple: to become the most trusted reviews platform in the world. We will achieve this by being ready and willing to disrupt ourselves through innovation, data and insight and adding product professionals with ambitions that match our own. As Senior UX Researcher, you'll be the go-to expert on measuring how people and businesses experience trust on Trustpilot, from reading a review to deciding our platform is worth paying for. You'll own the quantitative research agenda for your product areas, set the bar for statistical rigour across the team, and partner with Data Science to build a shared measurement culture.

What you'll be doing:

• Research strategy & execution: Design and own the quantitative research roadmap for your product areas, e.g. attitudinal measurement, behavioural analysis, and longitudinal tracking.
• Lead large-scale surveys (validated scales, NPS derivatives, trust-perception metrics) and log-data/behavioural analytics (funnels, A/B tests, cohort and retention modelling).
• Build measurement frameworks that define what 'good' looks like for review-reading, purchase-decision, and business-subscription journeys and track them over time.
• Quantitative methods: Lead advanced quantitative research - surveys, behavioural analytics, experimentation, predictive modelling using statistical rigor as the throughline, from validated instrument design through to automated, auditable analysis pipelines (Python/R/SQL).
• Pioneer AI-assisted techniques (e.g. LLM-assisted open-text analysis) where they genuinely sharpen the work, evaluating any AI tooling with a critical eye on validity and bias.
• Standards, influence and coaching: Partner with Data Science and Analytics on shared definitions and data pipelines; hold the bar on study design and statistical rigour 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.

What we're looking for:

• 4+ years of UX research experience with a strong specialisation 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 behavioural datasets (e.g. Amplitude, Looker, BigQuery).
• A 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 a research workflow e.g. LLM-assisted analysis, AI-assisted quant coding, or evaluating AI-powered research tooling with a critical eye on validity and bias.
• AI-curious practitioner who can speak critically about AI's limits as well as its power; collaborates fluently with qual, data science, and product analysts.
• Excellent communication and interpersonal skills, with the ability to work closely with diverse teams and present data-driven findings in an engaging and accessible way.

What’s in it for you:

• A range of flexible working options to dedicate time to what matters to you
• Competitive compensation package + bonus
• 25 days holiday per year, increasing to 28 days after 2 years of employment
• Two (paid) volunteering days a year to spend your time giving back to the causes that matter to you and your community
• Rich learning and development opportunities are supported through the Trustpilot Academy and Blinkist
• Pension and life insurance Health cash plan, online GP, 24/7, Employee Assistance Plan Full access to Headspace, a popular mindfulness app to promote positive mental health
• Paid parental leave
• Season ticket loan and a cycle-to-work scheme
• Central office location complete with table tennis, a gaming corner, coffee bars and all the snacks and refreshments you can ask for
• Regular opportunities to connect and get to know your fellow Trusties, including company-wide celebrations and events, ERG activities, and team socials.
• Access to over 4,000 deals and discounts on things like travel, electronics, fashion, fitness, cinema discounts, and more.
• Independent financial advice and free standard professional mortgage broker advice
• Talent acceleration programs: