React JS +UX Engineer

Senior React JS + UX Engineer

Location: Sunnyvale, CA Mode: Fulltime

Job Summary

We are looking for a Senior React JS Developer with strong UX sensibility to build scalable, high-performance, and user-centric web applications. The ideal candidate should combine deep React.js expertise with a solid understanding of UX principles, working closely with designers, product owners, and backend teams to deliver intuitive, accessible, and visually consistent user experiences.

Key Responsibilities

• Frontend Development (React.js)
• Design and develop modern, responsive Single Page Applications (SPAs) using React.js.
• Build reusable, maintainable components using Functional Components, Hooks, and modern ES6+ standards.
• Implement state management using Redux / Context API / Zustand as per application needs.
• Integrate frontend components with RESTful / GraphQL APIs.
• Ensure optimal performance through code splitting, lazy loading, and performance optimization techniques.
• Write clean, testable, and well-documented code following best practices.
• UX & UI Collaboration
• Work closely with UX/UI designers to translate Sketch designs into high-quality UI implementations.
• Ensure pixel-perfect UI, visual consistency, and adherence to design systems.
• Apply UX best practices related to usability, accessibility (WCAG), and responsive design.
• Actively participate in UX discussions and suggest improvements based on feasibility and user impact.
• Quality & Engineering Excellence
• Ensure cross-browser and cross-device compatibility.
• Write unit and component tests using Jest, React Testing Library.
• Participate in code reviews, architectural discussions, and sprint planning.
• Troubleshoot and resolve UI-related defects and production issues.

Required Skills & Qualifications

• Mandatory Skills
• Strong hands-on experience with React.js (7+ years preferred).
• Proficiency in JavaScript (ES6+), HTML5, CSS3.
• Solid experience with React Hooks, Component Lifecycle, and State Management.
• Strong understanding of UX principles, usability, and responsive design.
• Experience working with design systems and UI libraries (Material UI, Ant Design, Chakra, etc.).
• Hands-on experience integrating with REST APIs.
• UX-Focused Skills (Must Have)
• Ability to interpret UX designs and convert them into intuitive, scalable UI components.
• Knowledge of accessibility standards (ARIA, WCAG).
• Strong attention to visual details, spacing, typography, and interaction patterns.
• Experience collaborating directly with UX designers and product teams.
• Good to Have
• Experience with Next.js or other React frameworks.
• Exposure to Micro-Frontend architecture.
• Familiarity with Storybook for component documentation.
• Experience with CI/CD pipelines and frontend build optimization.
• Knowledge of performance profiling and monitoring tools.