AI/ML Developer

Primary Responsibilities

• Take ownership of designing, developing, testing, deploying, and maintaining AI/ML models and large language model-based agent applications for consumer-facing pharmacy and benefits management experiences.
• Build and improve multi-tool agent workflows that integrate large language models with APIs, serverless backend services, and enterprise pharmacy and benefits systems.
• Design and implement conversation state, memory and context handling, and response personalization for multi-turn user interactions.
• Contribute significantly to the architecture, implementation, and management of cloud infrastructure for AI solutions, utilizing Infrastructure as Code principles for reliable deployments.
• Improve model and agent quality through evaluation loops, error analysis, prompt and tool tuning, and continuous experimentation.
• Design and build reusable AI/ML platforms, components, and frameworks to accelerate innovation across the engineering team.
• Exhibit technical best practices for AI systems in regulated environments.
• Stay current with advancements in generative AI, large language model tooling, and agentic frameworks; propose innovative ways to tackle healthcare challenges.

What skills/attributes are a must have

• 4+ years of software engineering experience, including 2+ years building AI/ML or LLM-enabled applications.
• Strong Python engineering skills and experience building production backend services and APIs.
• Hands-on experience with cloud-native development on a major cloud platform.
• Experience building and integrating LLM-based applications (prompting, tool/function calling, retrieval, evaluation).
• Experience with CI/CD pipelines, code quality controls, and production incident support.
• Experience with observability and debugging in distributed systems.
• Strong ability to work collaboratively across diverse groups of business and technical stakeholders.
• Exceptional ability to communicate with both technical and non-technical people.

Nice to Have / Preferred Skills and Tools

• Experience with managed large language model platforms such as AWS Bedrock or Azure OpenAI, and cloud-hosted agent runtime services.
• Experience with agent orchestration frameworks such as Strands, LangGraph, or comparable tooling.
• Experience with retrieval-augmented generation (RAG) patterns, vector stores, and semantic search systems such as OpenSearch or Pinecone.
• Experience with conversational AI for chat channels, including multi-intent flow handling and session memory management.
• Experience with inter-agent communication patterns and tool orchestration protocols.
• Familiarity with async Python API frameworks such as FastAPI for serving AI applications.
• Experience with healthcare, pharmacy, or pharmacy benefits management domain workflows.
• Familiarity with secure handling of protected health and personally identifiable information, and delivery standards for regulated healthcare environments.
• Experience with AI experimentation, model quality dashboards, and governance review processes for production AI releases.

WHAT WE OFFER

• Hybrid
• Laptop/Computer Provided by the Company
• Market Total Rewards Package
• Retirement Plan
• Medical Plan (HMO) from Day 1 of employment
• Dental, Medical, and Optical Reimbursements
• Life and Disability Insurance
• Paid Time-Off Benefits
• Sick Leave Conversion
• Tuition Fee Reimbursement
• Employee Assistance Program (EAP)
• Annual Performance Based Merit Increases
• Employee Recognition
• Training and Staff Development
• Employee Referral Program
• Employee Volunteerism Opportunity
• All Mandatory Statutory Benefits

WHO WE ARE

• Optum is the health care technology and innovation company of the UnitedHealth Group enterprise along with UnitedHealthcare.
• UnitedHealth Group is a health care and well-being company with a mission to help people live healthier lives and help make the health system work better for everyone.
• We're a leading health solution and care delivery organization. Our work is complex, but our mission is simple: create a healthier world, with you at the center.
• As part of a Fortune 5 enterprise, we are improving the health care experience of over 125 million people around the world.
• Elevate your career with a leading health care company while improving lives