Principal Data Scientist I

LexisNexis Legal & Professional; Raleigh (NC); On-site; USD 118,000 - 220,000; Full time

Benefits offered by this job

Annual incentive bonus

Equal opportunity employer

Job summary

LexisNexis Legal & Professional seeks a Principal Data Scientist I to guide analytic projects and governance for enterprise AI in Raleigh, NC. You will mentor teams, review models, and communicate results to senior stakeholders.

The role emphasizes hands-on work with LLMs, RAG, embeddings, graph intelligence, and scalable AI systems with a focus on observability and cost optimization.

Qualifications

• Experience with large language models including prompting, fine-tuning, and adaptation.
• Experience with retrieval-augmented generation (hybrid search, ranking optimization).
• Knowledge of embedding strategies and semantic search systems.
• Experience integrating knowledge graphs and graph-enhanced intelligence.

Responsibilities

• Act as a leader for analytic projects and result sharing.
• Lead code reviews and approve models before deployment to customers.
• Evaluate and create new frameworks, define methodologies and governance.

Skills

Large language models

Retrieval-augmented generation

Embedding strategies

Semantic search

Knowledge graph

Agentic AI

Evaluation science

Cost-performance optimization

AI observability

Data governance

Job description

Principal Data Scientist I

Responsibilities

• Acting as a leader for analytic project and result sharing
• Leading code reviews, acting as a final approver of models before reaching customers
• Evaluating and creating new frameworks and defining methodologies and governance
• Managing and leading small-to-medium sized teams, directly or indirectly
• Setting a high-bar for model development

Requirements

• Large language models (prompting, fine-tuning, adaptation), LLM
• Advanced retrieval-augmented generation (hybrid search, ranking optimization), RAG
• Embedding strategies and semantic search systems
• Knowledge graph integration and graph-enhanced intelligence
• Agentic AI architecture, multi-step reasoning, autonomous agent orchestration, and long-running agent design with feedback loops, GenAI
• Evaluation science (offline metrics, human-in-the-loop systems)
• Cost-performance optimization
• AI observability and monitoring in production
• Data governance and compliance-aware system design
• Have excellent communication skills and the ability to convey information clearly to senior stakeholders
• Be a natural problem-solver and able to take a lead in collaborating to resolve issues
• Have experience in mentoring or training others , and acting as a subject matter expert to guide colleagues
• Have some management experience, including leading a team indirectly or directly
• Have significant experience in a Data Scientist role
• Have experience in leading complex projects and customer relationships

U.S. National Base Pay Range: $118,300 - $219,800. Geographic differentials may apply in some locations to better reflect local market rates.This job is eligible for an annual incentive bonus.

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.

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