Optum Tech, part of UnitedHealth Group, is seeking a Senior Software Engineer to provide technical leadership in designing and developing modern, scalable, and high-performance applications. This role owns front-end delivery end-to-end and includes developing Node.js-based backend services to support the full product experience.
What You'll Do
- Provide technical leadership in designing and developing modern, scalable, and high-performance front-end applications using ReactJS, JavaScript/TypeScript, and component-driven architectures
- Own front-end delivery end-to-end, including UI architecture, development, testing, performance optimization, deployment, and monitoring
- Develop and maintain Node.js-based backend services to support UI integration, API consumption, server-side logic, and build/deployment workflows
- Build intuitive, responsive, accessible, and user-centric UI experiences using React, HTML5, CSS3, and modern UI frameworks
- Collaborate with Product Managers, UX Designers, and backend engineering teams to translate business requirements into efficient, scalable, maintainable UI solutions
- Identify and resolve front-end performance bottlenecks, rendering issues, and scalability challenges, ensuring a smooth user experience
- Lead and mentor front-end engineers, promoting best practices in coding, testing, documentation, and architectural patterns
- Ensure high-quality integration with backend APIs and data services by working closely with Node.js and backend engineering teams
- Drive Agile delivery practices to include sprint planning, backlog refinement, code reviews, CI/CD, and DevOps collaboration
- Create and maintain front-end technical documentation, including architecture designs, reusable component libraries, and coding standards
- Stay updated on emerging Java and Spring Boot technologies, frameworks, and ecosystem trends to continuously enhance product quality and engineering efficiency
What We're Looking For
- Bachelor’s Degree in Engineering, Information Systems, or a related technical field
- 9+ years of professional software development experience including full-stack engineering
- 8+ years of expertise with JavaScript/TypeScript, React Hooks, Redux or other state management frameworks, HTML5, CSS3, responsive design, and micro frontend architecture
- 6+ years of hands-on experience with Node.js
Technical Stack
- ReactJS, JavaScript, TypeScript, HTML5, CSS3, Node.js, Java, Spring Boot
Work Mode
This position is hybrid and located in the United States.
Our culture is guided by diversity and inclusion, and we offer comprehensive benefits and career development opportunities.
UnitedHealth Group is an equal opportunity employer.




