UI Engineer, React/Typescript - Optum Tech Consumer Engineering

• Build accessible, reusable UI components in React 19 with TypeScript 5, following industry best practices
• Translate dynamic mockups into production-ready components and pages, ensuring WCAG AA compliance, keyboard accessibility, and semantic HTML
• Implement application flows using React Router 7 and state management with Redux Toolkit and React Redux
• Maintain and evolve our SCSS-based design system; document and showcase components in Storybook 8
• Optimize rendering, bundle size, and runtime performance using memoization, hooks, and Nx workspace tooling
• Write and maintain unit and integration tests using Jest 29 and Testing Library; contribute to E2E coverage with Playwright
• Collaborate with shared libraries, strict typing, and CI pipelines; follow code review and git workflows
• Contribute to internationalization and runtime translation patterns and ensure robust error handling and analytics instrumentation where needed
• Participate in Agile ceremonies; partner with design and product to plan features, refine requirements, and evaluate technical trade-offs
• Write high-quality, accessible UI shipped with strong test coverage and documented in Storybook
• Create reusable components and hooks that reduce duplication and accelerate feature delivery
• Wrote maintainable code that fits industry standards: typed, readable, and well-tested
• Contribute measurable improvements in performance, reliability, and developer experience across our codebase

You'll be rewarded and recognized for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role as well as provide development for other roles you may be interested in.

• Undergraduate degree or equivalent experience
• Proven front-end experience building scalable React applications and component libraries
• Solid proficiency in TypeScript 5 (typing props, generics, utility types, type guards) and modern React patterns (hooks, memoization, context when appropriate)
• Hands-on experience with Redux Toolkit and React Redux; comfortable designing slices/selectors and handling async flows
• Proficiency with React Router (v7) for routing, guarded flows, and navigation patterns
• Solid understanding of web accessibility (WCAG AA), semantic HTML, and keyboard navigation
• Comfort with build tools, CI/CD, and version control (Git), plus Agile collaboration
• Excellent communication skills, attention to detail, and a collaborative mindset

Preferred Qualifications:

• Experience with analytics instrumentation, internationalization, and performance profiling
• Experience maintaining a living design system and documenting components in Storybook 8
• Solid testing discipline: Jest 29 and Testing Library for unit/integration tests; Playwright for E2E; familiarity with mock strategies and test isolation
• Familiarity with Nx monorepos, modular libraries, and performance optimization within large codebases
• Expertise in SCSS for styling (variables, mixins, responsive layouts), with a focus on maintainable, mobile-first design

*All employees working remotely will be required to adhere to UnitedHealth Group's Telecommuter Policy.

Pay is based on several factors including but not limited to local labor markets, education, work experience, certifications, etc. In addition to your salary, we offer benefits such as, a comprehensive benefits package, incentive and recognition programs, equity stock purchase and 401k contribution (all benefits are subject to eligibility requirements). No matter where or when you begin a career with us, you'll find a far-reaching choice of benefits and incentives. The salary for this role will range from $91,700 to $163,700 annually based on full-time employment. We comply with all minimum wage laws as applicable.

Optum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health care's most complex challenges. Your contributions here have the potential to change lives. Ready to build the next breakthrough? Join us to start Caring. Connecting. Growing together. You'll enjoy the flexibility to work remotely * from anywhere within the U.S. as you take on some tough challenges.For all hires in the Minneapolis or Washington, D.C. area, you will be required to work in the office a minimum of four days per week., 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. UnitedHealth Group is an Equal Employment Opportunity employer under applicable law and qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status, or any other characteristic protected by local, state, or federal laws, rules, or regulations. UnitedHealth Group is a drug - free workplace. Candidates are required to pass a drug test before beginning employment.