Senior AI Architect & Platform Lead

Regeneron Pharmaceuticals, Inc.; Village of Tarrytown (NY); On-site; USD 110,000 - 179,000; Full time

Job summary

Regeneron Pharmaceuticals in Sleepy Hollow, NY, seeks a Lead AI Engineer to architect and deliver enterprise-scale AI capabilities, including intelligent agents, LLM-powered apps, and AI platform services. You will lead engineers, drive cross-functional collaboration, and maintain a strong hands-on Python presence.

You will guide design, adoption of cutting-edge AI techniques, and collaboration with senior stakeholders to accelerate drug discovery and clinical research while ensuring security

Qualifications

• Bachelor’s, Master’s or Ph.D. in Computer Science, Computer Engineering, AI or related field.
• 7–10 years of software and AI engineering experience with at least 3 years in a tech lead role.
• Expert-level Python development and production REST API experience (FastAPI).
• Hands-on with AI agents, MCP servers, and LLM-powered apps using LangChain, LangGraph, Strands, CrewAI.

Responsibilities

• Lead end-to-end design, development, and deployment of enterprise AI apps and LLM systems.
• Design and build AI Agents and autonomous systems with agentic frameworks.
• Develop MCP servers for secure integration between AI agents and data sources.
• Apply advanced LLM techniques (prompting, fine-tuning, RAG) for context-aware apps.
• Architect vector databases and RAG pipelines for semantic search.
• Create RESTful APIs to expose AI capabilities to internal platforms.

Skills

Python development

REST API design

AI engineering

Team leadership

Communication

Education

Bachelor’s/Master’s/Ph.D. in CS/CE/AI

Tools

LangChain

LangGraph

Strands

CrewAI

Milvus DB

OpenAI

Anthropic

AWS Bedrock

SageMaker

Kubernetes

Terraform

CI/CD

FastAPI

EKS

Lambda

S3

Docker

CI/CD pipelines

Job description

Regeneron Pharmaceuticals in Sleepy Hollow, NY, seeks a Lead AI Engineer to architect and deliver enterprise-scale AI capabilities, including intelligent agents, LLM-powered apps, and AI platform services. You will lead engineers, drive cross-functional collaboration, and maintain a strong hands-on Python presence.

You will guide design, adoption of cutting-edge AI techniques, and collaboration with senior stakeholders to accelerate drug discovery and clinical research while ensuring security