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Senior Data Scientist with Python Focus

Company: LexisNexis

Location: toronto, London

Posted: June 03, 2026

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Position Details

Advance your career at LexisNexis as a Senior Data Scientist specializing in Retrieval-Augmented Generation (RAG) with Python skills. Drive the creation of cutting-edge AI solutions in a flexible, remote work environment.
You will engage in AI model implementation, optimization, and research within this crucial role. A strong background in Python and RAG is essential for deriving effective outcomes through prompt engineering. Collaborating with teams, you will integrate AI into current systems effectively.
Key Responsibilities:
• Evaluate AI models with a focus on RAG
• Engineer prompts to achieve targeted results
• Work with teams to integrate AI solutions
• Fine-tune RAG models for efficiency and scalability
• Maintain documentation for AI processes and workflows
Requirements:
• Proven experience as a Senior Data Scientist
• Deep understanding of Python programming
• Expertise in RAG models and prompt engineering
• Familiarity with other machine le...