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# Senior Data Scientist II

- **Company:** RELX Group plc
- **Location:** Raleigh, NC, United States
- **Experience:** Expert
- **Salary:** $104,900.0 - $174,700.0
- **Contract:** Permanent contract
- **Skills:** LangGraph Framework, Artificial Intelligence, Data Analysis, Text Processing, Python (Programming Language), Machine Learning, Natural Language Processing, Lexis, LangChain, Retrieval-Augmented Generation, Large Language Models, Prompt Engineering, Model Validation, Agentic-AI, AI Platforms, Information Technology, AutoGen
- **Published:** October 30, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-data-scientist-ii-raleigh-nc--dafe7bf4-5ae1-456d-866e-1c4729705383

## About the Role

Data Science, LexisNexis, Use Cases, Legal, Artificial Intelligence (AI), Establish Priorities, Productivity Management, Data Science, Business Practices, Attorney, * Master's degree or above in a quantitative or technical field (Statistics, Computer Science, Mathematics, Data Science, etc.).

 * Strong experience in machine learning, NLP, and LLM-based modeling.
 * Strong 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.
 * Strong foundation in statistics, modeling, and large-scale text processing.

## Description

Are you looking to develop your Data Scientist career?

Would you enjoy training more junior team members?

We are seeking a Senior Data Scientist II to help lead the design and validation of AI-driven product capabilities within the legal domain. This team is global AI platform team that builds AI products and ships AI features to production. The team works on cutting edge AI technology and extensively leverages latest AI tools/Features as part of product.

Responsibilities:

 * Develop and implement NLP, LLM, and generative AI approaches (e.g., RAG, prompt strategies).
 * Define agentic workflows and reasoning strategies for multi-step legal tasks.
 * Develop 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.