Manager, Data Science

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. About the Role A Manager Data Science is an emerging subject matter expert in their domain. They lead a team of junior members to support their development and work product. They are mindful of best practices and train their team in the execution of those best practices. They manage a team to define new best practices and innovative approaches to new business problems or use cases. Responsibilit ies Lead the design and execution of LLM training and fine-tuning projects, including model selection, training strategy, experimentation, and evaluation. Oversee the preparation of high-quality training datasets, including data collection, cleaning, deduplication, annotation, and quality validation. Develop and optimize supervised fine-tuning and parameter-efficient fine-tuning workflows; apply preference optimization methods where appropriate. Establish evaluation frameworks to assess factual accuracy, instruction following, domain relevance, safety, and performance on business-specific tasks. Diagnose training issues and improve model quality, training stability, GPU utilization, and…