Senior Data Scientist II

LexisNexis; Raleigh (NC); On-site; USD 105,000 - 175,000; Full time

Benefits offered by this job

Health Benefits

401(k) Match

Wellbeing Platform

Disability & Insurance

Family Benefits

Commuter Benefits

Volunteer Time Off

Job summary

LexisNexis Legal & Professional seeks a Senior Data Scientist II to lead design and validation of AI-driven product capabilities in the legal domain. You will drive ML/NLP/LLM strategies, experiments, and collaboration with engineers to scale solutions for customers.

You will work with product and legal experts to define workflows, evaluate models, and translate insights into business impact, mentoring teammates along the way.

Qualifications

• Master’s degree or higher in a quantitative field.
• Strong experience in ML, NLP, and LLM-based modeling.
• Experience designing and running experiments with evaluation.
• Strong coding skills.
• Experience with generative AI techniques (prompt engineering, RAG).
• Experience hybrid search using embeddings and vector databases.
• Experience designing agent workflows with LangChain/LangGraph/AutoGen.
• Proficiency in Python and data analysis tools.
• Strong foundation in statistics and large-scale text processing.

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, and evaluation metrics.
• 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.

Skills

Machine Learning

NLP

LLM Modeling

Python

Generative AI

Experimentation

Leadership

Education

Master’s degree or above in Statistics, CS, Mathematics, Data Science

Tools

LangChain

LangGraph

AutoGen

Vector Databases

Job description

About Our Team

LexisNexis Legal & Professional, serving customers in over 150 countries with 11,800 employees worldwide, is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers. Our company is a leader in deploying AI and advanced technologies to improve productivity and transform the legal market. We prioritize using the best models from today's top creators for each legal use case.

About Our Team

LexisNexis Legal & Professional, serving customers in over 150 countries with 11,800 employees worldwide, is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers. Our company is a leader in deploying AI and advanced technologies to improve productivity and transform the legal market. We prioritize using the best models from today's top creators for each legal use case.

About The Role

We are seeking a Senior Data Scientist II to help 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 help drive experimentation, modeling, and evaluation, partnering closely with engineers to translate validated approaches into scalable, customer-facing solutions.

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.

Requirements

• Education: 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.
• Strong coding skills.
• 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.

Work in a way that works for you

We promote a healthy work/life balance across the organization. We offer an appealing working prospect for our people. With numerous well-being initiatives, shared parental leave, study assistance, and sabbaticals, we will help you meet your immediate responsibilities and your long-term goals.

• Working flexible hours - flexing the times when you work in the day to help you fit everything in and work when you are the most productive.

Working for you

Benefits

We know that your well-being and happiness are key to a long and successful career. These are some of the benefits we are delighted to offer:

• Health Benefits: Comprehensive, multi-carrier program for medical, dental and vision benefits
• Retirement Benefits: 401(k) with match and an Employee Share Purchase Plan
• Wellbeing: Wellness platform with incentives, Headspace app subscription, Employee Assistance and Time-off Programs
• Short-and-Long Term Disability, Life and Accidental Death Insurance, Critical Illness, and Hospital Indemnity
• Family Benefits, including bonding and family care leaves, adoption, and surrogacy benefits
• Health Savings, Health Care, Dependent Care and Commuter Spending Accounts
• Up to two days of paid leave each to participate in Employee Resource Groups and to volunteer with your charity of choice

About The Business

LexisNexis Legal & Professional® provides legal, regulatory, and business information and analytics that help customers increase their productivity, improve decision-making, achieve better outcomes, and advance the rule of law around the world. As a digital pioneer, the company was the first to bring legal and business information online with its Lexis® and Nexis® services.

#AIFluency

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 Colorado, the base pay range is $104,900 - $174,700. If performed in Illinois, the base pay range is $110,100 - $183,500. If performed in Chicago, IL, the base pay range is $115,400 - $192,200. 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. If performed in Ohio, the base pay range is $99,700 - $166,000. This job is eligible for an annual incentive bonus. Application deadline is 07/31/2026.

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.