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About the Role
Seeking a Senior Data Scientist II to lead the design and validation of AI-driven product capabilities within the legal domain. This role involves working on cutting-edge AI technology and shipping AI features to production as part of a global AI platform team.
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 (semantic + lexical), and evaluation metrics (e.g., relevance, 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.
Requirements
- Master’s degree or above in a quantitative or technical field (Statistics, Computer Science, Mathematics, Data Science, etc.).
- Strong experience in machine learning, NLP, and LLM-based modeling.
- Strong experience designing and running experiments, including model evaluation and iteration.
- Experience with generative AI techniques (e.g., prompt engineering, RAG).
- Experience designing and evaluating hybrid search (semantic + lexical) using embeddings and vector databases.
- Experience designing agentic workflows and reasoning strategies, with hands-on experience applying agent frameworks (e.g., LangChain, LangGraph, AutoGen) in real-world use cases.
- Proficiency in Python and data analysis tools.
- Strong foundation in statistics, modeling, and large-scale text processing.
Experience Level
- Senior
Education Level
- Master’s degree or above
Salary/Compensations
- U.S. National Base Pay Range: $104,900 - $174,700
Benefits
- Country specific benefits
- Eligible for an annual incentive bonus
About the Company
- LexisNexis Legal & Professional serves customers in over 150 countries with 11,800 employees worldwide.
- Part of RELX, a global provider of information-based analytics and decision tools.
- A long-time leader in deploying AI and advanced technologies to the legal market.
- Employs over 2,000 technologists, data scientists, and experts.
- Develops, tests, and validates solutions in line with RELX Responsible AI Principles.
Equal Opportunity
- 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.