Senior AI/ML Engineer

Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health optimization on a global scale. Join us to start Caring. Connecting. Growing together.

Primary Responsibilities:

• Design and develop AI-driven, cloud-native applications, intelligent automation workflows, and AI agents using Python, Database (SQL and /or Postgrace or Mongo / oracle), Cloud (Azure and/or GCP or AWS), Frontend (.Net and /or react / Angular)
• Build, integrate, test, and deploy GenAI, Agentic AI, LLM, and RAG-based solutions for enterprise use cases
• Create and maintain automation frameworks, validation engines, data extraction capabilities, and autonomous remediation workflows to reduce manual effort and improve operational accuracyBuild and enhance backend services, APIs, and microservices using Java/Spring Boot, Python, Node.js, and related technologies
• Design, develop, and maintain responsive, scalable, and secure web applications using modern front-end frameworks such as React, Angular, and TypeScript
• Collaborate with product owners, architects, UX designers, and engineering teams to translate business requirements into technical solutions
• Develop and integrate RESTful APIs and cloud-based services across Azure, AWS, and GCP environments
• Implement secure coding practices, performance optimization, and scalability standards to ensure enterprise-grade application delivery
• Participate in architecture reviews, code reviews, design discussions, and technical solutioning sessions
• Support CI/CD pipelines, DevOps processes, containerization technologies, and automated deployment practices
• Troubleshoot complex technical issues and drive resolution across development, testing, and production environments
• Partner with Quality Engineering teams to ensure high-quality releases through unit testing, integration testing, and defect remediation
• Contribute to continuous improvement initiatives by adopting emerging technologies, engineering best practices, and AI-enabled development tools
• Mentor junior engineers and foster a culture of technical excellence, collaboration, and innovation
• Analyzes and investigates

• Provides explanations and interpretations within area of expertise

• Comply with all applicable Company policies, procedures, and business directives, changes including those relating to work location, team assignments, work schedules, and flexible work arrangements

Required Qualifications:

• Graduate degree or equivalent experience
• 8+ years of overall professional experience in software engineering, cloud application development, automation, or AI solution delivery
• 5+ years of hands-on experience across Java, Springbok, Kafka, Cucumber, React JS, nodes, Python, SQL, application development, and enterprise solution implementation
• 4+ years of hands-on experience delivering AI, Agentic AI, LLM-based, GenAI, or RAG-based projects in a production or enterprise environment
• Solid experience with Azure and/or GCP cloud platforms, including cloud-native design, deployment, integration, and operational support
• Experience with AI productivity and engineering tools such as GitHub Copilot, Microsoft 365 Copilot, Codex, Claude, and Visual Studio Code-based AI-assisted development
• Hands-on knowledge of LLM-based frameworks, Agentic frameworks such as LangGraph, LangChain or CrewAI, and exposure to MCP-based patterns
• Good understanding of RAG patterns, embeddings, vector databases, semantic search, Azure AI Search, Chroma
• DB, MongoDB, cognitive services, NLP, and knowledge retrieval capabilities
• Solid engineering fundamentals including APIs, microservices, scalable system design, testing, debugging, documentation, and secure development practices

At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalized groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.