Lead AI Engineer: Architect & Scale Healthcare LLMs

UnitedHealth Group; Richardson (TX); Remote; Confidential; Full time

Job summary

UnitedHealth Group is seeking a Lead Software Engineer to design, build, and scale next-generation agentic AI systems that improve healthcare delivery and operations.

In this IC leadership role you’ll drive architecture, development, and deployment of complex AI-powered solutions, including end-to-end Q&A and RAG pipelines, while ensuring responsible AI in a regulated environment (HIPAA).

Qualifications

• Bachelor's degree in Engineering, Computer Science, IT, or related fields.
• 10+ years of total technology experience.
• 8+ years hands on software development/data engineering/analytics with solid AI/ML delivery (Azure preferred) with Scala, Python, PySpark.
• 4+ years hands on with Databricks.
• 4+ years with ADF/Airflow (orchestration/scaling).
• 4+ years with big data & streaming (Hadoop, MapReduce/HDFS, Spark, Kafka); Docker/Kubernetes.
• 4+ years with MySQL and NoSQL databases.
• 4+ years with Agile/Scrum, GitHub, Jenkins CI/CD, JUnit; solid coding standards and code reviews.
• 2+ years with LLMs & GenAI (Langchain, LangGraph, RAG, Vector DB, Azure Open AI, MCP Server, Agents, LangFuse).
• 2+ years of experience with container (Docker/Kubernetes).
• 1+ years with Proficiency building services or full stack apps (e.g., FastAPI/Flask, Node.js, React/Angular, TypeScript, HTML/CSS).

Responsibilities

• Agentic AI Architecture & Delivery: Design and implement multi-agentic workflows where LLMs plan, decompose tasks, invoke tools/APIs, and synthesize answers across data sources.
• LLMs, GenAI & Model Adaptation: Leverage and adapt LLMs; perform prompt engineering, grounding, guard railing, and domain adaptation for healthcare terminology.
• Data & Platform Engineering: Build feature/retrieval stores, embeddings pipelines, and ETL/ELT jobs on Spark/Databricks; design analytics models and rules engines.
• Delivery, MLOps & Reliability: Own MLOps/LLMOps: CI/CD for models/prompts, tests, versioning, lineage; enable blue/green/canary releases.

Skills

Scala

Python

PySpark

Databricks

Airflow

Hadoop/Spark

Kafka

Docker/Kubernetes

MySQL/NoSQL

CI/CD

LLMs/GenAI

LangChain

Vector DB

Azure OpenAI

Microservices

FastAPI/Flask

Node.js

React/Angular

TypeScript

Education

Bachelor's degree in Engineering, Computer Science, IT, or related fields

Tools

Databricks

Azure

Job description

UnitedHealth Group is seeking a Lead Software Engineer to design, build, and scale next-generation agentic AI systems that improve healthcare delivery and operations.

In this IC leadership role you’ll drive architecture, development, and deployment of complex AI-powered solutions, including end-to-end Q&A and RAG pipelines, while ensuring responsible AI in a regulated environment (HIPAA).