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Posted 14 June, 2026

Senior Manager, RAG/LLM Specialist

ExlService Holdings, Inc.
Gurugram, Haryana, India Full Time
Reference: 218_689623_14037

Role Overview: Lead the design and optimization of advanced RAG pipelines and model finetuning processes. Bridge the gap between prototype and enterprise-scale LLM deployment.

  • Tech Stack: Python, PyTorch/TensorFlow, LangChain, LlamaIndex, advanced embedding models.
  • GenAI Skills: Deep expertise in advanced RAG (HyDE, parent-document retrieval), prompt optimization, and parameter-efficient fine-tuning.
  • Qualifications: Bachelor's/Master's in CS/Data Science with 4-7 years in ML/AI, including 1+ years specifically working with LLMs.

Key Responsibilities

  • Pipeline Ownership: Design and manage complex, multi-stage RAG pipelines ensuring low latency and high relevance.
  • Model Optimization: Lead fine-tuning initiatives (PEFT/LoRA) for open-source models to
  • improve domain-specific task performance.
  • Advanced Evaluation: Develop automated evaluation frameworks (e.g., RAGAS) to continually measure LLM accuracy, context precision, and recall.
  • Vector Strategy: Architect metadata filtering and hybrid search strategies within vector
  • databases (e.g., Pinecone, Milvus).
  • Team Mentorship: Guide junior analysts in prompt engineering, chunking strategies, and code quality.

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