Senior Software Engineering Lead - React js

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.

As a Senior Software Engineering Lead at Optum Technology, you will play a pivotal role across two high-impact initiatives that empower employees and enhance corporate operations. You will drive front-end architecture and user experience for Eva, an enterprise virtual agent designed to help employees quickly access information and perform administrative tasks, while also designing and delivering custom SharePoint solutions. Working across React-based user interfaces, streaming APIs, and intelligent employee tools, you will design, develop, and deploy scalable solutions that streamline enterprise workflows and elevate digital employee experience.

Primary Responsibilities

• Design, develop, and deliver modern React-based user interfaces and custom SharePoint solutions tailored for enterprise employee engagement and administrative workflows
• Lead the front-end engineering for Eva, our employee virtual agent, implementing intuitive UI/UX design concepts, streaming API responses, and performance optimization techniques
• Design, develop, and deploy AI-powered solutions to address complex business challenges with an emphasis on responsible use of AI
• Leverage enterprise-approved AI tools to streamline workflows, automate administrative tasks, and drive continuous product improvement
• Collaborate with cross-functional product managers, system architects, and UX design teams to translate complex requirements into clean, maintainable, and modular software components
• Evaluate emerging trends in AI technologies, web frameworks, and solution design to inform engineering decisions and strategic innovation
• Perform rigorous code reviews, ensure robust component packaging, and enforce high standards for code quality, scalability, and enterprise security
• 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

• Bachelor's degree or 5+ years of software engineering / application development experience
• 5+ years of hands-on software development experience with web technologies (HTML, CSS, JavaScript)
• 5+ years of strong proficiency in modern web development with React, including UI/UX design concepts, streaming API responses, performance optimization techniques, and component packaging
• 3+ years of experience designing, integrating, and consuming RESTful APIs and web services
• 2+ years of experience with version control systems (Git), CI/CD pipelines, and automated testing frameworks

Preferred Qualifications

Experience developing, customizing, and deploying custom SharePoint solutions

Experience designing, developing, and optimizing APIs using Python and FastAPI

Experience with relational database design, data access strategies, and query optimization

Experience working in an Agile/Scrum development environment

Understanding of AI application concepts, including effective prompting, token optimization, Agent-to-Agent (A2A) workflows, Agent-to-UI (A2UI) integration, and building AI agents

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.