Software Engineering Lead - Java Fullstack, React.js, AI

Requisition Number: 2339897
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, develop, and maintain backend microservices and REST APIs using Java/Spring Boot
• Build and support full stack features using React (frontend) and Java/Spring Boot (backend)
• Design, implement, and integrate AI agents and GenAI conversational workflows using
  • AWS Bedrock or Google Gemini models
  • Vector databases / RAG pipelines
  • MCP servers/tools or similar agent tool integrations
• Deploy and run services on AWS or GCP, including monitoring, troubleshooting, and participating in production incident/war room activities
• Collaborate with product, architecture, QA, and business stakeholders to translate requirements into scalable technical solutions
• Ensure high code quality via unit/integration tests, code reviews, and adherence to engineering best practices
• Provide technical guidance and mentoring to junior engineers; contribute to continuous improvement of architecture, tooling, and processes
• Comply with the terms and conditions of the employment contract, company policies and procedures, and any and all directives (such as, but not limited to, transfer and/or re-assignment to different work locations, change in teams and/or work shifts, policies in regard to flexibility of work benefits and/or work environment, alternative work arrangements, and other decisions that may arise due to the changing business environment). The Company may adopt, vary or rescind these policies and directives in its absolute discretion and without any limitation (implied or otherwise) on its ability to do so

Required Qualifications:

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent practical experience)
• Experience: 5+ years of professional software development experience
• Backend (Primary): Solid hands-on experience in Java, Spring Boot, and RESTful microservices (primary focus of the role)
• Full Stack: Practical experience building full stack applications with React as the frontend and Java/Spring Boot as the backend
• AI / GenAI:
  • Hands-on experience building AI agents / conversational GenAI solutions
  • Experience with vector databases and RAG (Retrieval-Augmented Generation)
  • Practical use of either AWS Bedrock models or Google Gemini models in real projects
  • Exposure to MCP servers/tools or equivalent tool/function-calling mechanisms for agents
• Cloud (Must Have): Production experience on at least one major cloud platform: AWS or GCP
• Solid understanding of microservices architecture, API design, databases (SQL/NoSQL), security, and performance
• Good communication, collaboration, and mentoring skills; ability to work independently and with cross-functional teams

Preferred Qualifications:

• Experience with Python for backend services, data pipelines, or AI/GenAI workflows
• Experience with LLM/agent frameworks such as LangChain, LlamaIndex etc.
• Experience with messaging/streaming platforms such as Kafka/MSK
• Experience with DevOps / platform topics:
  • CI/CD tools (GitHub Actions)
  • Docker and Kubernetes (EKS/GKE)

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.