AI/ML Engineer — Remote with LLM & LangChain Focus

UnitedHealth Group; United States; Remote; USD 99,000 - 176,000; Full time

Benefits offered by this job

Comprehensive benefits package

Equity stock purchase

401k contribution

Job summary

Optum Tech, a global leader in health care innovation, is seeking a talented Software Engineer with experience in large language models. You will develop ML solutions using LLMs, LangChain, and retrieval-augmented generation, and write clean Python code following PEP8.

This role offers remote work across the U.S.; Minneapolis and Washington, DC applicants should be in-office at least four days a week. You’ll collaborate with teams to deploy Dockerized solutions, ensure production quality, and

Qualifications

• 3+ years of proven experience with Large Language Models (LLMs).
• 3+ years of machine learning concepts and fine-tuning methodologies.
• 3+ years of professional Python coding (PEP8).
• Experience using LangChain framework.
• Experience with Retrieval-Augmented Generation (RAG).
• Experience with Docker containerization.
• Experience ensuring production-quality code with testing and documentation.
• Experience with Git version control.
• Comfortable writing clean, maintainable code and using the terminal.
• Authorized to work in the United States without employer sponsorship.

Responsibilities

• Develop and implement machine learning solutions using LLMs.
• Utilize LangChain for closed/open-source models.
• Apply fine-tuning to optimize models for tasks/datasets.
• Write clean, maintainable code following PEP8.
• Use Docker for development and deployment.
• Ensure production-quality code with thorough testing and documentation.
• Work in the terminal for development/deployment tasks.
• Work with XGBoost and K-means for traditional ML tasks.

Skills

LLMs

ML concepts

Python (PEP8)

LangChain

RAG

Docker

Testing & documentation

Git

Terminal usage

US work authorization

Tools

LangChain

Docker

Git

Job description

Optum Tech, a global leader in health care innovation, is seeking a talented Software Engineer with experience in large language models. You will develop ML solutions using LLMs, LangChain, and retrieval-augmented generation, and write clean Python code following PEP8.

This role offers remote work across the U.S.; Minneapolis and Washington, DC applicants should be in-office at least four days a week. You’ll collaborate with teams to deploy Dockerized solutions, ensure production quality, and