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RELX INC

Senior Data Scientist I

RELX INC

Published 13 May 2026
Amsterdam, Netherlands
Remote
Full Time

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Role Highlights

Languages used

Key skills

Prompt Engineering
Information Retrieval
Machine Learning
ML Ops
Data Science
Semantic Search
Computer Science
Integrations
Financial Services
Data Visualization
Technical Leadership
Statistical Analysis
LLMs
Generative AI
RAG
Optimization
Embeddings
DataSets
Testing
Statistics
NLP
Graph
Research
Chemistry
Deployment
PhD

Tools, Libraries and Frameworks

HuggingFace
Power BI
DataBricks
Tableau
PyTorch
Haystack
Langchain
Matplotlib
Seaborn

Description

The role involves leading the development and evaluation of advanced search and generative AI systems. The individual will own complex problem areas end-to-end and contribute to the technical direction of retrieval and retrieval-augmented generation pipelines. Responsibilities include designing and optimizing lexical, vector, and hybrid retrieval systems at scale. The role also requires defining evaluation strategies for search and generative AI, including the development of datasets and annotation workflows. Additionally, the position involves collaborating with domain experts to integrate scientific taxonomies and structured data into discovery pipelines.

Required Qualifications and Skills

Candidates must possess a Master’s or PhD in Computer Science, Data Science, Machine Learning, or a related field, though equivalent practical experience is accepted. The role requires extensive experience in data science, machine learning, or applied natural language processing. Applicants need strong hands-on proficiency in search and retrieval systems, RAG pipelines, and evaluation methodologies. Additionally, advanced programming skills in Python and experience with modern machine learning frameworks and distributed data platforms are necessary.

Disclaimer

Disclaimer: Job and company description information and some of the data fields may have been generated via GPT-4 summarisation and could contain inaccuracies. The full external job listing link should always be relied on for authoritative information.

About the company

RELX INC

Size

2565

HQ

London, GB

Description

RELX is a global provider of information-based analytics for professional and business customers across industries. We help scientists make new discoveries, doctors and nurses improve the lives of patients and lawyers win cases. We prevent online fraud and money laundering, and help insurance companies evaluate and predict risk. Our events enable customers to learn about markets, source products and complete transactions. In short, we enable our customers to make better decisions, get better results and be more productive. We do this by leveraging a deep understanding of our customers to create innovative solutions which combine content and data with analytics and technology in global platforms. RELX serves customers in more than 180 countries and has offices in about 40 countries. It employs approximately 30,000 people of whom almost half are in North America. We operate in four major market segments: Scientific, Technical & Medical; Risk & Business Analytics; Legal; and Exhibitions. \_\_\_\_ Please note that RELX does not contact people through social media to extend job or contract offers, nor do we request money, credit card details or bank account information as part of any project or job application process. Any such request is fraudulent. Please contact your local law enforcement agency if you have been victimized by a scammer. For careers, access https://www.relx.com/careers/why-relx

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