Relx Group

Senior Data Scientist II - Generative AI / RAG / Agentic AI

Relx Group$115K — $192K *
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in building Generative AI and LLM-based solutions
  • Strong expertise in RAG frameworks and retrieval-based AI architectures
  • Advanced Python skills for modular design and clean coding
  • Deep understanding of information retrieval and text search methods
  • Hands-on experience with OpenSearch, Solr, or similar platforms
  • Knowledge of embeddings, semantic retrieval, and relevance optimization
  • Experience in a monorepo environment with version control best practices

Responsibilities

  • Design, build, and optimize Generative AI and RAG systems for various use cases
  • Enhance LLM outputs through prompt design and retrieval optimization
  • Develop scalable data science and machine learning components
  • Construct and refine retrieval pipelines, focusing on query processing and ranking
  • Apply text search techniques using platforms like OpenSearch and Solr
  • Leverage embeddings and semantic search to boost answer quality
  • Write clean, maintainable Python code following strong engineering practices
  • Collaborate with cross-functional teams across data science and engineering

Benefits

  • Flexible working arrangements promote collaboration and personal well-being
  • Access to country-specific benefits tailored to location needs
  • Support for individual productivity and team cooperation in a hybrid work setup
Full Job Description
Are you excited to shape the next generation of AI-powered drafting and search experiences at scale?

Do you want to work on advanced Generative AI systems that turn complex information into clear, trusted insights?

About the Role
As a Senior Data Scientist II, you will design and improve Generative AI, Retrieval-Augmented Generation (RAG), and agentic RAG systems that power drafting, search, and reasoning use cases. You will focus on retrieval quality, evaluation, and production-grade machine learning components, working closely with cross-functional partners to deliver measurable improvements in relevance, accuracy, and user trust.

Responsibilities
  • Design, build, and optimize Generative AI, RAG, and agentic RAG systems for drafting, search, and reasoning use cases
  • Improve LLM-generated outputs through prompt design, retrieval optimization, evaluation, and experimentation
  • Develop and maintain scalable data science and machine learning components for production environments
  • Build and enhance retrieval pipelines, including query processing, document retrieval, ranking, reranking, and grounding strategies
  • Apply text search and relevance tuning techniques using platforms such as OpenSearch and Solr
  • Use embeddings, hybrid retrieval, semantic search, and reranking methods to improve answer quality and system performance
  • Write high-quality, maintainable, production-ready Python code following strong software engineering practices
  • Collaborate closely with partners across data science, engineering, product, and domain teams


Requirements
  • Proven experience building and improving Generative AI and LLM-based solutions in production or near-production settings
  • Strong experience with RAG frameworks, retrieval-based AI architectures, and agentic workflows
  • Advanced Python skills, including modular design, testing, debugging, and clean coding practices
  • Strong understanding of information retrieval, text search methods, and retrieval architectures
  • Hands-on experience with OpenSearch, Solr, or similar search platforms
  • Experience with embeddings, semantic retrieval, reranking, and relevance optimization
  • Proven ability to work effectively in a monorepo environment with disciplined version control and code review practices
  • Experience collaborating in cross-functional teams and contributing to CI/CD and deployment workflows


Work in a Way That Works for You
We promote flexible ways of working that support collaboration, focus, and personal wellbeing, while meeting the needs of our teams and customers.

Working Pattern
This role supports flexible working arrangements, balancing individual productivity with team collaboration.

#AIFluent

U.S. National Base Pay Range: $104,900 - $174,700. Geographic differentials may apply in some locations to better reflect local market rates.If performed in Maryland, the base pay range is $110,100 - $183,500.If performed in New York, the base pay range is $115,400 - $192,200.If performed in New York City, the base pay range is $125,900 - $209,700.If performed in Rochester, NY, the base pay range is $104,900 - $174,700.If performed in New Jersey, the base pay range is $123,816 - $197,784.This job is eligible for an annual incentive bonus.
We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here to access benefits specific to your location.

About Relx Group

RELX Group is a global provider of information-based analytics and decision tools for professional and business customers. The company operates in four market segments: scientific, technical and medical; risk and business analytics; legal; and exhibitions. RELX's products and services include electronic databases, online information services, workflow tools, and print and digital books. The company was founded in 1993 and is headquartered in London, England.
Learn more about Relx Group
Size
33,500 employees
Market Cap
$53.1 billion
Industry
Net Income
$1.2 billion
Founded
2018
5 Year Trend
+1%
Revenue
$7.1 billion
NASDAQ

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