Senior React Frontend Developer

Senior React Frontend Developer (10+ Years Experience)

The Opportunity

We are seeking an exceptionally seasoned Senior React Frontend Developer to lead the development of complex, high-performance, and scalable user interfaces. This role requires a proven track record of at least 10 years of professional experience in modern frontend development, with deep expertise in the React ecosystem. The ideal candidate is a hands-on technical leader, committed to writing clean, maintainable code, and driving architectural decisions.

Key Responsibilities

• Design, develop, and deploy robust, high-performance, and accessible user interfaces using React.js (ideally v18+) and its core principles.
• Lead technical discussions and contribute to the overall frontend architecture and strategy, including micro-frontend adoption if necessary.
• Mentor junior and mid-level developers, conducting rigorous code reviews, and ensuring adherence to best practices, coding standards, and design patterns.
• Collaborate closely with product managers, UX/UI designers, and backend engineers to translate complex business requirements into functional features.
• Optimize application performance, focusing on metrics like Core Web Vitals, maximum speed, and scalability across various devices.
• Write comprehensive unit, integration, and end-to-end tests to ensure code quality and stability.

Minimum Qualifications (Strictly Required)

• Experience: A minimum of 10+ years of verifiable professional experience as a Frontend Developer, with extensive, dedicated experience in React.js and the surrounding ecosystem.
• Location/Relocation: Must be open and willing to relocate anywhere across the continental United States (USA). This is a mandatory requirement.
• Work Authorization (Non-Negotiable): Due to legal and operational constraints, we are only considering candidates who possess and can provide documentation for one of the following valid work authorizations:
• US Citizen (USC)
• Green Card Holder (GC)
• L2 Spouse EAD (L2S)
• H4 Spouse EAD (H4 EAD)
• Resume Policy: We maintain a strict policy against accepting consultancy/vendor resumes and marketing profiles. Your resume must directly reflect your personal, dedicated, and continuous employment history.

Technical Expertise

Required Core Skills

• React: Deep expertise in React (v18 or later), including Hooks, Context API, and Concurrent Features.
• State Management: Expertise in modern state management libraries such as Redux, Redux Toolkit, Zustand, or Recoil.
• Language: Master proficiency in modern JavaScript (ES6+) and TypeScript.
• Styling: Expert knowledge of HTML5, CSS3, CSS-in-JS (e.g., Styled Components, Emotion), CSS Modules, and pre-processors (SASS/LESS).
• Testing: Strong proficiency with testing frameworks like Jest, React Testing Library, and end-to-end testing tools (Cypress or Playwright).
• Performance: Proven ability to diagnose and resolve complex performance issues, including bundle size optimization, lazy loading, and rendering performance.
• Tooling: Proficiency with module bundlers (e.g., Webpack, Vite, Rollup) and version control (Git/GitHub/GitLab).

Desirable / Good-to-Have Skills

• Full-Stack Exposure: 30% or more experience with backend technologies, demonstrating familiarity with server-side logic and API integration. Experience with Node.js, Python, or Java is a plus.
• Frameworks: Experience with server-side rendering (SSR) frameworks like Next.js or Remix.
• Data Fetching: Familiarity with modern data fetching libraries like React Query (TanStack Query) or Apollo/Relay for GraphQL.
• Accessibility: Solid understanding of Web Accessibility standards (WCAG) and implementation best practices.
• Cloud/DevOps: Exposure to CI/CD pipelines and cloud platforms like AWS, Azure, or GCP.