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Data Scientist @ Optum

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 Posted 32 days ago — confirm the vacancy is still active.

 Data Scientist

Job Description

We are looking for a Senior Data Scientist with 5-8 years of experience to lead the design and development of scalable AI systems, with deep expertise in NLP, LLM architectures, and Generative AI.
Primary Responsibilities:
  • Architect and develop large-scale LLM-based systems
  • Design and implement advanced RAG pipelines and multi-agent AI systems
  • Lead development of document intelligence solutions including OCR and structured data extraction
  • Drive end-to-end ML lifecycle including problem definition, modeling, deployment, and monitoring
  • Establish and enforce best practices for MLOps and CI/CD pipelines
  • Conduct and scale proof-of-concepts into production systems
  • Collaborate with stakeholders to translate business requirements into AI solutions
  • Mentor junior data scientists and conduct technical reviews
  • Ensure performance optimization, scalability, and reliability of AI systems
Required Qualifications:
  • Programming and System Design
    • Proven experience in designing scalable AI/ML systems
    • Solid understanding of data structures, algorithms, and distributed systems
    • Solid programming expertise in Python with production-level experience
  • AI/ML and Generative AI
    • Hands-on experience with RAG architectures and agentic AI systems
    • Hands-on experience with vector databases such as Pinecone, FAISS, ChromaDB, or Azure AI Search
    • Hands-on experience with PyTorch, TensorFlow, Hugging Face, or related deep learning frameworks
    • Experience in optimizing LLM performance
    • Experience with fine-tuning, evaluation, and optimization of LLMs for enterprise use cases
    • Experience building and orchestrating autonomous AI agents capable of reasoning, planning, and tool execution
    • Experience with agent orchestration frameworks such as LangGraph, CrewAI, AutoGen, or MCP
    • Experience designing scalable multi-agent workflows and AI orchestration systems
    • Experience optimizing AI systems for latency, throughput, scalability, and cost efficiency
    • Experience deploying production-grade AI/ML solutions in cloud environments
    • Understanding of prompt engineering, guardrails, AI safety, and hallucination mitigation techniques
    • Understanding of AI application architecture patterns for enterprise-scale systems
    • Solid understanding of transformer architectures and LLM internals
    • Solid understanding of Machine Learning fundamentals including supervised and unsupervised learning, model evaluation, and feature engineering
    • Familiarity with AI observability, model monitoring, and evaluation pipelines for GenAI systems
    • Familiarity with semantic search, embeddings, reranking, and retrieval optimization techniques
    • Deep expertise in NLP and deep learning
  • Document Intelligence
    • Experience in extracting structured information from unstructured sources
    • Solid experience with OCR pipelines and document layout analysis
  • Cloud and MLOps
    • Experience deploying scalable solutions in cloud environments
    • Solid experience with Azure AI/ML services
    • Expertise in CI/CD pipelines, MLOps frameworks, and model monitoring

Job Classification

Industry: Retail
Functional Area / Department: Data Science & Analytics
Role Category: Data Science & Machine Learning
Role: Full Stack Data Scientist
Employement Type: Full time

Contact Details:

Company: Optum
Location(s): Noida, Gurugram

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Keyskills:   data scientist Tensorflow Azure Performance Optimization Architecture Use Cases Feature Engineering Ai Programming Data Extraction Llm Machine Learning Deep Learning Model Evaluation Pytorch Nlp Pharmacy Mlops Python

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