Summary: Seeking a Lead Data Scientist with expertise in LLMs, Python, and Conversational AI to architect advanced AI chatbot systems and lead impactful AI projects. Highlights: 1. Architect advanced AI chatbot systems for specialized domains 2. Lead impactful AI projects and drive innovation 3. Integrate AI agents with external tools and databases We are seeking a **Lead Data Scientist** with strong expertise in Large Language Models, Python, and Conversational AI to architect advanced AI chatbot systems for specialized domains. You will work on NLP, Responsible AI, and integrating AI agents with external tools and databases, alongside cross\-functional teams. Join us to drive innovation and lead impactful AI projects. **Responsibilities** * Coordinate with product, analytics, and engineering teams to architect and enhance AI\-powered shopping assistant chatbots * Design and improve prompt engineering methodologies to optimize chatbot engagement * Build LLM\-driven agents with API, database, and external tool integration through advanced function calling * Apply robust hallucination prevention methods and comprehensive model evaluation to maintain chatbot accuracy * Enforce Responsible AI practices and compliance standards to ensure ethical and legal alignment * Leverage A/B testing frameworks to measure and enhance chatbot functionality * Perform exploratory data analysis (EDA) for actionable insights and define structured requirements for data engineering teams * Advise cloud engineering teams on architecture and infrastructure strategies for AI chatbot deployments **Requirements** * Proven track record with at least 5 years in data science, NLP, or Conversational AI leadership * Expert\-level proficiency in LLMs using OpenAI APIs on Azure, Python, and function calling for AI agent integration * Deep understanding of hallucination mitigation techniques alongside Responsible AI principles and compliance frameworks * Background in connecting AI workflows to external tools and databases * Knowledge of prompt engineering, experimentation via A/B testing, and data analysis methodologies * Experience collaborating with diverse teams and directing cloud engineering requirements for AI systems * Advanced English communication abilities at B2\+ level **Nice to have** * Hands\-on experience with A/B testing and collaborative experimentation with analytics teams * Ability to establish and execute testing strategies using defined chatbot performance metrics * Proficiency in conducting in\-depth exploratory data analysis * Skill in compiling and conveying precise data requirements to data engineering * Familiarity with cloud platforms and capability to outline specifications for cloud engineering solutions