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RELX3 weeks ago

Senior Data Scientist I

On-site · Gurugram, Haryana, India

Type
Full Time
Level
Senior Level
Education
Not Specified
Company size
Enterprise

Job Summary

Senior Data Scientist I responsible for designing, developing, and deploying ML and GenAI solutions in production. Focus on Retrieval-Augmented Generation (RAG) pipelines, fine-tuning LLMs, prompt engineering strategies, and scalable ML pipelines using Python. Collaborate with Engineering, Product, and SMEs to deliver AI-powered features, monitor model performance and drift, conduct experiments (A/B testing), and contribute to AI system architecture. Required expertise includes Python, NLP, LLMs, RAG, vector databases (Pinecone/FAISS), ML tools (Scikit-learn, XGBoost, LightGBM), PyTorch/TensorFlow, LangChain/LlamaIndex, and cloud ML deployments (AWS/Azure/GCP). Benefits cover health and family-oriented programs, flexible working arrangements, and location-specific offerings; the role is based in Gurgaon, India.

Required Qualifications

  • Experience: 6–8 Years
  • Core Stack Python
  • Machine Learning
  • Generative AI (LLMs, prompt engineering)
  • RAG architecture and vector search
  • Model evaluation and validation
  • LangChain / LlamaIndex
  • Scikit-learn / XGBoost / LightGBM
  • PyTorch / TensorFlow
  • HuggingFace / OpenAI / LLM APIs
  • Vector databases (Pinecone, FAISS, Weaviate, OpenSearch)
  • SQL and data querying
  • Experience with AWS / Azure / GCP
  • CI/CD for ML deployments
  • Model tracking tools (MLflow preferred)
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RELX

Senior Data Scientist I

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