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EXL

Lead AI Data Engineer

EXL

Lead AI Data Engineer architecting enterprise-grade LLM-powered systems. Collaborating with cross-functional teams to drive GenAI solutions and best practices.

Posted 7/4/2026full-timeNoida • 🇮🇳 IndiaSeniorWebsite

Tech Stack

Tools & technologies
AWSAzureCloudFlaskGoogle Cloud PlatformPySparkPythonSQL

About the role

Key responsibilities & impact
  • Architect enterprise-grade agentic and LLM solutions (single-agent, multi-agent, tool-driven workflows)
  • Define scalable GenAI system design patterns (RAG, orchestration layers, evaluation frameworks)
  • Act as the technical anchor for GenAI initiatives across projects
  • Drive design reviews, architecture governance, and best practices
  • Design and build agentic systems using LLMs for use cases such as knowledge assistants, document automation & intelligence, workflow orchestration
  • Implement advanced prompt engineering strategies, prompt orchestration, and reasoning chains
  • Build tool-calling / function-calling frameworks for agent workflows
  • Lead end-to-end implementation of RAG pipelines: Data ingestion → chunking → embeddings → vector indexing → retrieval → response generation
  • Optimise retrieval quality (recall, relevance, grounding)
  • Evaluate and benchmark different architectures
  • Develop production-grade APIs/services (FastAPI, Flask, etc.)
  • Drive code quality, testing standards, and reusable architecture components
  • Ensure solutions are performance optimised (latency, cost, reliability)
  • Implement LLM guardrails (hallucination control, safety filters, policy enforcement)
  • Define evaluation frameworks (response quality metrics, RAG benchmarking, human-in-the-loop validation)
  • Drive end-to-end delivery ownership across multiple projects
  • Mentor and guide junior engineers and project teams
  • Conduct technical reviews, solution walkthroughs, and code reviews.

Requirements

What you’ll need
  • 9–12 years total experience
  • 2–4+ years hands-on in LLM / GenAI delivery (production use cases)
  • Strong hands-on experience with LLMs (Claude, OpenAI, etc.)
  • RAG pipelines and retrieval optimisation
  • GPT + Agentic AI implementation experience
  • Experience with LangChain, LangGraph, or similar frameworks
  • Agent orchestration and tool-calling architectures
  • Deep understanding of LLM limitations, evaluation, and optimisation strategies
  • Strong Python/Pyspark engineering expertise (production-grade development) with proven API integration experience
  • Deep data analysis experience and handling large volume of data
  • Fabric/Azure Databricks/Snowflake data engineering integration skills
  • Good exposure to Cloud platforms (Azure/AWS/GCP)
  • SQL
  • Containers, CI/CD, monitoring
  • Experience leading solution design or small teams
  • Ability to translate business problems into AI solutions
  • Strong stakeholder communication and influencing skills.

Benefits

Comp & perks
  • Health insurance
  • Retirement plans
  • Paid time off
  • Flexible work arrangements
  • Professional development opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
LLMGenAIRAG PipelinesPrompt EngineeringAPI DevelopmentData AnalysisSQLPythonPysparkAgent Orchestration
Soft Skills
Stakeholder CommunicationTeam LeadershipMentoring