Senior Data Scientist III - Agentic AI

RELX INC • Raleigh, NC • 6d ago

About our Team:

LexisNexis Legal & Professional, which serves customers in more than 150 countries with 11,800 employees worldwide, is part of RELX (https://www.relx.com/) , a global provider of information-based analytics and decision tools for professional and business customers. Our company has been a long-time leader in deploying AI and advanced technologies to the legal market to improve productivity and transform the overall business and practice of law, deploying ethical and powerful generative AI solutions with a flexible, multi-model approach that prioritizes using the best model from today's top model creators for each individual legal use case.

About the Role:

Are you looking to develop your Data Scientist career?

Do you enjoy coaching others to achieve high standards?

We are seeking a Senior Data Scientist III to lead the design and validation of Agentic AI-driven product capabilities within the legal domain. This role focuses on defining what to build and why-leveraging machine learning, NLP, and large language models (LLMs) to solve complex legal workflows.

You will drive experimentation, modeling, and evaluation, partnering closely with engineers to translate validated approaches into scalable, customer-facing solutions.

Responsibilities:

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.

Required Qualifications

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.

AIFluent

U.S. National Base Pay Range: $115,400 - $192,300. Geographic differentials may apply in some locations to better reflect local market rates.

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 (https://www.relx.com/careers/join-us/benefits) to access benefits specific to your location.

We are committed to providing a fair and accessible hiring process. If you have a disability or other need that requires accommodation or adjustment, please let us know by completing our Applicant Request Support Form or please contact 1-855-833-5120.

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We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.

USA Job Seekers:

EEO Know Your Rights.

RELX is a global provider of information-based analytics and decision tools for professional and business customers, enabling them to make better decisions, get better results and be more productive.

Our purpose is to benefit society by developing products that help researchers advance scientific knowledge; doctors and nurses improve the lives of patients; lawyers promote the rule of law and achieve justice and fair results for their clients; businesses and governments prevent fraud; consumers access financial services and get fair prices on insurance; and customers learn about markets and complete transactions.

Our purpose guides our actions beyond the products that we develop. It defines us as a company. Every day across RELX our employees are inspired to undertake initiatives that make unique contributions to society and the communities in which we operate.

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