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RELX

Senior Data Analyst

RELX

Senior Data Analyst leading analytics for search and retrieval systems at Elsevier. Analyzing performance metrics and ensuring data-driven decisions for an innovative healthcare platform.

Posted 5/12/2026full-timeAmsterdam • 🇳🇱 NetherlandsSeniorWebsite

Tech Stack

Tools & technologies
PythonSparkSQLTableau

About the role

Key responsibilities & impact
  • Perform a leading role in analysis of search and retrieval system performance, including ranking quality and relevance.
  • Help define and standardize search evaluation metrics (e.g., NDCG, MAP, recall, precision, CTR).
  • Analyze query behavior, user interaction signals, and content performance to identify optimization opportunities.
  • Conduct deep-dive analyses on ranking performance, query intent, and retrieval gaps.
  • Support evaluation of downstream applications (including GenAI-powered features) where they depend on retrieval quality.
  • Help design and lead A/B testing and experimentation frameworks for search and ranking improvements.
  • Partner with product and data science to define success metrics and experiment strategies.
  • Ensure statistical rigor in experiment design, analysis, and interpretation.
  • Build reusable experimentation templates and scalable analysis workflows.
  • Own and evolve dashboards and reporting systems tracking search performance and user engagement.
  • Develop clear, actionable data storytelling to communicate insights to technical and business stakeholders.
  • Enable self-service analytics for partners through well-designed reporting tools.
  • Work with large-scale datasets using modern platforms (e.g., Databricks, Spark, SQL-based systems).
  • Ensure high standards for data quality, metric consistency, and instrumentation reliability.
  • Collaborate with engineering to improve logging, tracking, and observability of search systems.
  • Act as a key analytics partner to search data scientists, engineers, and product teams.
  • Help elevate the team’s understanding of retrieval performance and measurement frameworks.

Requirements

What you’ll need
  • Master’s or PhD in Data Analytics, Statistics, Computer Science, or a related field (or equivalent practical experience)
  • ~3–5+ years of experience in data analysis, business intelligence, or analytics roles
  • Strong proficiency in SQL and Python for large-scale data analysis
  • Advanced experience with data visualization and BI tools (e.g., Tableau, Power BI, Looker, matplotlib, seaborn)
  • Experience working with Databricks or similar large-scale data platforms
  • Strong understanding of experimentation design, A/B testing, and statistical analysis
  • Experience defining and analyzing search/retrieval metrics (e.g., NDCG, recall, precision, ranking metrics)
  • Proven ability to translate complex data into actionable insights and influence decisions.

Benefits

Comp & perks
  • Dutch Share Purchase Plan
  • Annual Profit Share Bonus
  • Comprehensive Pension Plan
  • Home, office or commuting allowance
  • Generous vacation entitlement and option for sabbatical leave
  • Maternity, Paternity, Adoption and Family Care leave
  • Flexible working hours
  • Personal Choice budget
  • Variety of online training courses and career roadshows
  • Wellbeing programs and gym facility in the office
  • Internal communities and networks
  • Various employee discounts
  • Recruitment introduction reward
  • Work from anywhere
  • Employee Assistance Program (global)

ATS Keywords

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Hard Skills & Tools
data analysisbusiness intelligenceSQLPythondata visualizationA/B testingstatistical analysissearch/retrieval metricsNDCGprecision
Soft Skills
data storytellingcommunicationcollaborationinfluenceproblem-solvinganalytical thinkingattention to detailorganizational skillsleadershipadaptability
Certifications
Master’s in Data AnalyticsPhD in Data AnalyticsMaster’s in StatisticsPhD in StatisticsMaster’s in Computer SciencePhD in Computer Science