Senior Data Scientist I

Senior Data Scientist position at LexisNexis Legal & Professional, working on AI, GenAI, and RAG solutions for business delivery projects, with responsibilities including designing, developing, and deploying machine learning and GenAI solutions in production environments, building and optimizing Retrieval-Augmented Generation pipelines, fine-tuning and evaluating Large Language Models, and implementing scalable ML pipelines using Python.

Requirements

• 6-8 years of experience
• Advanced proficiency in Python
• Machine Learning (supervised/unsupervised learning, NLP)
• Generative AI (LLMs, prompt engineering, embeddings)
• RAG architecture and vector search
• Model evaluation and validation frameworks
• ML & AI Tools (LangChain / LlamaIndex, Scikit-learn, PyTorch, TensorFlow, HuggingFace, Vector databases)
• Data & Infrastructure (SQL, AWS, Azure, GCP, CI/CD, Model tracking tools)
• Good to Have (Experience in legal, regulatory, or publishing domains, Model monitoring and MLOps, Fine-tuning techniques, Multi-agent frameworks)

Benefits

• Comprehensive Health Insurance
• Enhanced Health Insurance Options
• Group Life Insurance
• Group Accident Insurance
• Flexible Working Arrangement
• Employee Assistance Program
• Medical Screening
• Modern Family Benefits
• Long-Service Awards
• New Baby Gift
• Subsidized Meals in Chennai
• Various Paid Time Off
• Free Transport pick up and drop from the home-office-home in Chennai