Senior Full Stack Engineer

UnitedHealth Group•Eden Prairie, MN

8d•$91,700 - $163,700•Remote

About The Position

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. You will enjoy the flexibility to telecommute from anywhere within the U.S. as you take on some tough challenges. Design, develop, and own complex, scalable user interfaces using React and modern frontend technologies Lead the implementation of UI features with a strong focus on performance, reliability, and maintainability Build reusable, modular UI components and frontend architectures that support long‑term scalability Integrate AI‑assisted development practices to improve code quality, development efficiency, and delivery speed Apply AI‑based tools for code generation, refactoring, debugging, testing, and UI optimization where appropriate Ensure high standards of code quality through clean design, unit and integration testing, documentation, and code reviews Integrate frontend applications with backend services and APIs to deliver seamless end‑to‑end functionality Troubleshoot, debug, and resolve complex UI issues across development, testing, and production environments Optimize application performance, rendering behavior, and state management in large‑scale React applications Contribute to frontend modernization initiatives, including improving UI architecture, tooling, and engineering practices Provide onshore support during US business hours to triage and resolve UI‑related production and deployment issues Design, develop, and deploy AI-powered solutions to address complex business challenges with emphasis on responsible use of AI. You’ll be rewarded and recognized for your performance in an environment that will challenge you and give you clear directions on what it takes to succeed in your role as well as provide development for other roles you may be interested in.

Requirements

Bachelor's degree in Computer Science, Engineering, or equivalent practical experience
5+ years of professional experience in building full‑stack applications
5+ years of backend development experience using Java
3+ years of experience with React, modern frontend technologies
3+ years of experience designing and consuming RESTful or GraphQL APIs

Nice To Haves

Backend development experience, Node.js, Python, or similar server‑side technologies
Strong hands‑on experience with AWS cloud services, including application deployment and troubleshooting
Proficiency in writing clean, testable, and maintainable code across frontend and backend layers
Experience using AI‑assisted development tools for coding, testing, or developer productivity
Familiarity with CI/CD pipelines, version control systems, and agile development practices
Strong debugging and problem‑solving skills, including production issue resolution
Knowledge of security best practices for web applications and cloud environments

Responsibilities

Design, develop, and own complex, scalable user interfaces using React and modern frontend technologies
Lead the implementation of UI features with a strong focus on performance, reliability, and maintainability
Build reusable, modular UI components and frontend architectures that support long‑term scalability
Integrate AI‑assisted development practices to improve code quality, development efficiency, and delivery speed
Apply AI‑based tools for code generation, refactoring, debugging, testing, and UI optimization where appropriate
Ensure high standards of code quality through clean design, unit and integration testing, documentation, and code reviews
Integrate frontend applications with backend services and APIs to deliver seamless end‑to‑end functionality
Troubleshoot, debug, and resolve complex UI issues across development, testing, and production environments
Optimize application performance, rendering behavior, and state management in large‑scale React applications
Contribute to frontend modernization initiatives, including improving UI architecture, tooling, and engineering practices
Provide onshore support during US business hours to triage and resolve UI‑related production and deployment issues
Design, develop, and deploy AI-powered solutions to address complex business challenges with emphasis on responsible use of AI.