Lead AI Engineer

Regeneron

Confirmed live today High trust

Quick summary

Work type
On-site
Location
Tarrytown, NYSleepy Hollow, NY
Salary
$109,900–$179,300 / yr
Employment
Full-time
Posted
64 days ago
Freshness
Confirmed live today

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $192k
This role $145k
$95k $246k
below market most similar roles pay here above market

This role pays less than 86% of similar roles. Most pay $157,800–$225,587 — the blue band above. At the midpoint, this role pays about $145k versus about $192k for comparable roles.

Based on 240 similar postings.

Employer

About Regeneron

Regeneron is a leading science-driven biotechnology company that invents, develops, and commercializes life-transforming medicines for serious diseases.

Regeneron currently has 73 open roles on FindRole.

Listed pay typically runs $134,400–$241,200 across 46 roles with salary data.

Most-posted roles

View all roles at Regeneron

At a glance

TL;DR · Lead AI Engineer

The Lead AI Engineer joins the Digital Transformation – AI Strategy & Execution team to architect and deliver enterprise-scale AI capabilities. This role involves leading a team of engineers to build intelligent agents, LLM-powered applications, and AI platform services that accelerate drug discovery and clinical research. Key responsibilities include designing production-grade systems using agentic frameworks like LangChain, LangGraph, Strands, and CrewAI, as well as developing MCP servers and managing vector databases like Milvus DB. The engineer will utilize Python, FastAPI, and AWS services including Bedrock and SageMaker to implement RAG, fine-tuning, and prompt engineering. This position solves complex technical problems by providing model routing, observability, and multi-model orchestration within a regulated biotechnology environment to improve enterprise productivity and scientific research.

What you'll do

  • Design and deploy enterprise-scale AI applications and LLM-powered systems with production-grade security and scalability.
  • Build AI agents and autonomous systems using frameworks like LangChain, LangGraph, and CrewAI.
  • Develop and operate MCP servers to integrate AI agents with enterprise data sources.
  • Implement advanced LLM techniques including prompt engineering, fine-tuning, and retrieval-augmented generation (RAG).
  • Architect and manage vector database solutions for semantic search and knowledge retrieval.
  • Administer the enterprise LLM gateway platform to manage model routing, access controls, and observability.
  • Lead, mentor, and manage a team of AI engineers while conducting code reviews and setting technical standards.
  • Partner with business units and clinical research teams to translate AI opportunities into scalable technical solutions.

What we're looking for

  • Bachelor’s, Master’s, or Ph.D. in Computer Science, Computer Engineering, Artificial Intelligence, or a related technical field.
  • 7–10 years of progressive software and AI engineering experience.
  • At least 3 years of experience in a technical lead or senior individual contributor role.
  • Expert-level Python development skills, including production REST API development with FastAPI.
  • Proven experience building AI Agents, MCP Servers, and LLM-powered applications using frameworks like LangChain, LangGraph, Strands, or CrewAI.
  • Hands-on experience with vector databases (Milvus DB preferred) for RAG and semantic search pipelines.
  • Experience administering LLM API gateway platforms, including model routing, observability, access governance, and multi-model orchestration.
  • AWS Certified Machine Learning – Specialty.

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