We are looking for an experienced Principal Frontend Software Engineer with strong expertise in React, TypeScript, and modern frontend architecture. The ideal candidate should have a proven track record of building scalable, high-performance web applications and driving frontend best practices. Key responsibilities include designing and developing scalable, responsive, and maintainable web applications, building reusable and efficient UI components using modern React patterns, writing comprehensive unit, integration, and end-to-end tests, optimizing application performance, accessibility, and user experience, collaborating closely with backend engineers, product managers, and stakeholders, and participating in code reviews, technical design discussions, and architectural decisions. Mandatory skills include 5+ years of hands-on experience in React and TypeScript development, with at least 2 years dedicated to TypeScript, strong expertise in React 18+ including Custom Hooks, Context API, Suspense, and Higher-Order Components, experience with Webpack/RSPack custom configurations, strong understanding of Browser APIs (Fetch API, LocalStorage, History API, Intl API), hands-on experience with CSS Modules, testing expertise using Jest and Testing Library, knowledge of Micro-Frontend Architecture and Module Federation, understanding of Content Security Policy, experience with Cypress or Playwright for end-to-end testing, experience developing and maintaining HTML emails, and experience working with Monorepo architectures. The role is based in India with a remote work option and requires 6-9 years of experience. Immediate joiners are preferred.