Lead AI Scientist & Model Governance Architect

RELX Inc. Company; North Carolina; On-site; USD 118,000 - 220,000; Full time

Job summary

LexisNexis Legal & Professional is seeking a Principal Data Scientist I to lead analytic projects, finalize models for customers, and drive governance across AI initiatives. The role emphasizes mentoring, cross-team collaboration, and shaping innovative data solutions.

Ideal candidates will have extensive experience with LLMs, RAG, embeddings, and graph-based intelligence, and possess strong communication skills for senior stakeholders. Base pay reflects U.S.

Qualifications

• Experience with large language models and prompting/fine-tuning.
• Experience building retrieval-augmented generation and semantic search systems.
• Experience mentoring or leading teams and guiding colleagues.

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.

Skills

LLMs

RAG

Knowledge graphs

Graph AI

Embeddings

Agentic AI

Agent design

Cost optimization

AI observability

Data governance

Stakeholder comms

Mentoring

Leadership

Project leadership

Job description

LexisNexis Legal & Professional is seeking a Principal Data Scientist I to lead analytic projects, finalize models for customers, and drive governance across AI initiatives. The role emphasizes mentoring, cross-team collaboration, and shaping innovative data solutions.

Ideal candidates will have extensive experience with LLMs, RAG, embeddings, and graph-based intelligence, and possess strong communication skills for senior stakeholders. Base pay reflects U.S.