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RELX

Global information analytics and decision tools

Senior Data Scientist - AI for Science, Research Intelligence & Knowledge Discovery

Full-TimeUpdated on 10/23/2026
$95.3k - $190.5k+ Annual incentive bonus
Senior
Pennsylvania, USA+6 moreMore locations: Delaware, USA | Philadelphia, PA, USA | New York, NY, USA | Maryland, USA | Massachusetts, USA | New Jersey, USA
In Person
AI & Machine LearningNatural Language Processing & LLMs
Company Historically Provides H1B Sponsorship

About the job

Requirements
  • Significant hands-on experience in Data Science, Machine Learning, Artificial Intelligence, Natural Language Processing, Information Retrieval, Statistics, Computer Science, or a related quantitative discipline.
  • Advanced expertise in developing and deploying machine learning, natural language processing, retrieval, and generative artificial intelligence solutions in production environments.
  • Experience working with modern large language models, prompt engineering, model evaluation, retrieval systems, and artificial intelligence-powered workflows.
  • Extensive Python programming skills and a track record of building maintainable, production-quality software.
  • Experience designing and implementing retrieval-augmented generation systems, semantic search, vector retrieval, embeddings, ranking, or recommendation solutions.
  • Deep understanding of machine learning fundamentals, experimentation, model evaluation, statistical analysis, and performance measurement.
  • Experience with modern artificial intelligence and machine learning frameworks such as PyTorch, TensorFlow, Hugging Face, LangChain, LangGraph, or equivalent technologies.
  • Experience working with large-scale structured, semi-structured, and unstructured datasets, particularly text-rich or content-heavy data.
Responsibilities
  • Design, develop, and deploy advanced machine learning, natural language processing, retrieval, and generative artificial intelligence solutions that support scientific discovery and knowledge exploration.
  • Build and optimize large language model-powered applications, including question answering, literature summarization, semantic search, research insight generation, and evidence-grounded artificial intelligence experiences.
  • Develop retrieval-augmented generation systems that connect artificial intelligence models with trusted scientific and scholarly content.
  • Create intelligent capabilities for search, ranking, recommendation, entity extraction, classification, enrichment, and decision support.
  • Design evaluation frameworks that measure quality, relevance, reliability, grounding, trustworthiness, and user impact.
  • Integrate knowledge graphs, ontologies, taxonomies, citations, metadata, and scientific domain knowledge into artificial intelligence workflows.
  • Partner with engineering teams to produce, monitor, optimize, and continuously improve artificial intelligence systems at scale.
  • Lead technical discovery, influence solution architecture, and guide methodological decisions across initiatives.
  • Mentor fellow data scientists and contribute to a culture of technical excellence, experimentation, and responsible artificial intelligence.
  • Collaborate closely with Product, Engineering, Research, Editorial, UX, and domain experts to solve complex scientific and business challenges.

About the company

RELX is a global provider of information-based analytics and decision tools for professionals across scientific, technical, medical, legal, risk, business, and exhibitions industries. It operates in four segments: Scientific, Technical & Medical; Risk & Business Analytics; Legal; and Exhibitions. Its products combine large datasets, analytics, and decision-support tools to help researchers, healthcare professionals, lawyers, and business leaders make informed choices, improve productivity, and achieve better outcomes. Revenue mainly comes from subscriptions, with additional income from transactional sales and advertising. RELX differentiates itself through its deep data assets, specialized industry knowledge, and multi-segment offerings that span content, analytics, and decision-support services. The company pursues a goal of delivering trusted information and insights while supporting corporate responsibility and alignment with the UN SDGs through its products and partnerships.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

London, United Kingdom

Founded

1894

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Simplify's Take

What believers are saying

  • H1 2026 revenue grew 7%; Legal grew 10%; Risk grew 8%.
  • February 24, 2026 Lexis+ with Protégé launched globally, expanding AI workflow adoption.
  • September 3, 2026 Doctrine closes, targeting one million European legal professionals.

What critics are saying

  • Anthropic and Thomson Reuters compressed legal AI pricing after February 2026 market shock.
  • Harvey and Legora court law schools in 2026, training future buyer cohorts elsewhere.
  • Exhibitions face Middle East event uncertainty through 2026, threatening margins and calendar-dependent cash flows.

What makes RELX unique

  • LexisNexis’ 200 billion-document corpus still beats generic legal AI models.
  • September 3, 2026 Doctrine acquisition deepens RELX’s European legal AI workflow moat.
  • H1 2026 subscriptions supplied 62% of revenue, stabilizing cash generation.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Life Insurance
  • Disability Insurance
  • 401(k) Retirement Plan
  • 401(k) Company Match
  • Wellness Program
  • Mental Health Support
  • Family Planning Benefits
  • Health Savings Account/Flexible Spending Account
  • Flexible Work Hours

Company News

Yahoo Finance
Oct 23rd, 2026
RELX reports 7% underlying revenue growth as AI demand backs full-year outlook

RELX reported 7% underlying revenue growth for the first nine months of 2026, with its Legal, Risk, and STM divisions all contributing. Management reiterated its expectation of strong full year growth in revenue, adjusted operating profit, and constant currency adjusted earnings per share (EPS). AI-powered analytics tools, such as Lexis+ Protégé and LeapSpace, are becoming central to RELX's subscription model. The main risk is that competing or open source AI options could pressure its ability to charge a premium while it keeps investing heavily in new products. Analysts forecast revenue of £12.0bn and earnings of £2.9bn by 2029, implying 7.3% yearly revenue growth. Earnings are currently £2.3bn.

Yahoo Finance
Oct 22nd, 2026
RELX reaffirms 2026 outlook as nine-month underlying revenue grows 7%, led by Legal at 10%

RELX, the global provider of information-based analytics and decision tools, reported underlying revenue growth of 7% for the first nine months of 2026. It reaffirmed its full year outlook. Legal grew 10%, Risk 8%, and Scientific, Technical & Medical 6%. Exhibitions rose 4%, held back by disruption in the Middle East. Growth came from AI-enabled analytics and decision tools. RELX's research-grade AI workspace, LeapSpace, is seeing rapid usage growth. RELX expects another year of strong underlying growth in revenue and adjusted operating profit, as well as strong growth in adjusted earnings per share at constant currency.

Citybiz
Apr 28th, 2026
RELX to Acquire Legaltech Platform Doctrine in European AI Push

RELX Group has entered into an agreement to acquire French legal technology company Doctrine, a move that would expand its... Read More

Business Insider
Mar 1st, 2026
LexisNexis CEO dismisses AI threat as company reports 7% revenue growth

LexisNexis CEO Sean Fitzpatrick has dismissed investor concerns that AI threatens the legal software giant, saying proprietary data gives it a competitive advantage. Shares of parent company Relx fell 14% on 3 February following Anthropic's launch of an AI agent that drafts legal briefs, and are down 17% year-to-date. Fitzpatrick said LexisNexis's database of 200 billion legal documents, including content from Shepard's Citations dating to 1873, cannot be replicated by AI model makers. The company doesn't license its proprietary data to general-purpose AI providers. Relx reported 7% revenue growth for 2025 and 9% increase in adjusted operating profit, driven by customers adopting AI tools. LexisNexis is hiring and hasn't conducted AI-related redundancies.

Yahoo Finance
Feb 22nd, 2026
RELX's LexisNexis launches AI-powered identity management platform for healthcare

LexisNexis Risk Solutions, a wholly owned subsidiary of RELX, has launched a new identity management platform for the healthcare sector. Announced on 19 February, the tool combines identity verification, matching and enrichment capabilities with AI-powered authentication to enhance security throughout patients' healthcare journeys. The platform integrates LexisNexis IDVerse and offers enhanced identity verification, resolution and fraud protection. For healthcare professionals, it accelerates onboarding processes, automates processing and provides digital checks to prevent fraud. RELX is a global information and analytics company serving professional and business customers across scientific, technical, medical, legal and risk management markets.