RELX

Senior Data Scientist – Agentic AI

RELX

full-time

Posted on:

Location Type: Hybrid

Location: CaliforniaDistrict of ColumbiaUnited States

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Salary

💰 $115,400 - $192,300 per year

Job Level

Tech Stack

About the role

  • Lead experimentation and model development for AI/ML solutions in legal products
  • Design and evaluate NLP, LLM, and generative AI approaches (e.g., RAG, prompt strategies)
  • Define agentic workflows and reasoning strategies for multi-step legal tasks
  • Define retrieval strategies, including hybrid search (semantic + lexical), and evaluation metrics (e.g., relevance, ranking quality)
  • Analyze large-scale legal datasets to extract insights and improve model performance
  • Establish best practices for model evaluation, validation, and benchmarking
  • Translate experimental results into clear product recommendations and business impact
  • Collaborate with product, legal experts, and engineers to align solutions with user needs
  • Mentor team members and provide technical leadership in data science and AI.

Requirements

  • Bachelor’s or Master’s degree in a relevant field (e.g., Computer Science, Data Science, Statistics, Mathematics)
  • Strong experience in machine learning, NLP, and LLM-based modeling
  • Proven experience designing and running experiments, including model evaluation and iteration
  • Experience with generative AI techniques (e.g., prompt engineering, RAG)
  • Experience designing and evaluating hybrid search (semantic + lexical) using embeddings and vector databases
  • Experience designing agentic workflows and reasoning strategies, with hands-on experience applying agent frameworks (e.g., LangChain, LangGraph, AutoGen) in real-world use cases
  • Proficiency in Python and data analysis tools
  • Ability to define retrieval strategies, including hybrid search (semantic + lexical), and evaluation metrics (e.g., relevance, ranking quality)
  • Able to analyze large-scale legal datasets to extract insights and improve model performance.
Benefits
  • Eligible for an annual incentive bonus
  • Country specific benefits
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
machine learningnatural language processinglarge language modelsgenerative AIprompt engineeringhybrid searchdata analysismodel evaluationPythonagent frameworks
Soft Skills
technical leadershipmentoringcollaborationcommunication
Certifications
Bachelor’s degreeMaster’s degree