Senior Data Scientist II — AI & NLP Product Leader

LexisNexis Legal & Professional group; California; Hybrid; USD 105,000 - 175,000; Full time

Job summary

LexisNexis Risk Solutions is seeking a Senior Data Scientist II in Raleigh, NC to lead NLP/LLM initiatives for AI-driven legal products. You will design and validate AI features, build retrieval and hybrid search systems, and guide experiments from data to product impact.

You’ll collaborate with product teams and experts, mentor juniors, and advance responsible AI practices. The role requires a Master’s or higher, strong ML/NLP/LLM experience, and proficiency in Python with vector databases and

Qualifications

• Master’s degree or higher in a quantitative or technical field.
• Strong experience in machine learning, NLP, and LLM-based modeling.
• Experience designing and running experiments with model evaluation and iteration.
• Experience with generative AI techniques (prompt engineering, RAG).

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 like relevance and 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.

Skills

Python

NLP

LLM modeling

Machine learning

Experiment design

Generative AI

Hybrid search

LangChain

LangGraph

AutoGen

Data analysis

Statistics

Education

Master’s degree or higher

Tools

LangChain

LangGraph

AutoGen

Vector databases

Job description

LexisNexis Risk Solutions is seeking a Senior Data Scientist II in Raleigh, NC to lead NLP/LLM initiatives for AI-driven legal products. You will design and validate AI features, build retrieval and hybrid search systems, and guide experiments from data to product impact.

You’ll collaborate with product teams and experts, mentor juniors, and advance responsible AI practices. The role requires a Master’s or higher, strong ML/NLP/LLM experience, and proficiency in Python with vector databases and