Sr Data Scientist
LexisNexisChennai, Tamil Nadu, India • Gurgaon, Haryana, India
Posted April 9, 2026
Full Time
About the Company
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.
Job Description
The Sr. Data Scientist will work on complex projects involving AI, GenAI, RAG, and Agentic Solutions for business delivery projects. Responsibilities include designing, developing, and deploying machine learning and GenAI solutions, building and optimizing Retrieval-Augmented Generation pipelines, and collaborating with Engineering, Product, and SMEs to deliver AI-driven features.
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
- Experience with LangChain / LlamaIndex, Scikit-learn, PyTorch, HuggingFace, Vector databases, SQL, and AWS/Azure/GCP
- CI/CD for ML deployments and model tracking tools (MLflow preferred)
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
