We are seeking a highly experienced Senior Frontend Developer to lead the frontend development for a digital transformation project. You will play a crucial role in building modern, responsive user interfaces for a portal. As a Senior Frontend Developer, you will be responsible for architecting frontend solutions, mentoring junior developers, and ensuring exceptional user experience across web platform.

- Lead frontend architecture decisions and establish coding standards for React/TypeScript applications

- Develop responsive, accessible web applications using Next.Js, TypeScript, and modern UI libraries

- Build Progressive Web App (PWA) capabilities for user experience

- Implement multi-language support (Portuguese-BR, Spanish-LATAM, English) using internationalization libraries

- Design and develop reusable component libraries following design system principles

- Integrate frontend applications with RESTful APIs and GraphQL endpoints

- Implement complex state management using Redux Toolkit and React Query

- Build advanced forms with dynamic field validation and conditional logic for insurance workflows

- Develop data visualization components for dashboards, reports, and analytics (charts, loss triangles)

- Implement role-based UI rendering and field-level permission controls

- Optimize application performance including code splitting, lazy loading, and bundle optimization

- Establish and maintain automated testing strategies (unit, integration, e2e testing)

- Lead code reviews and mentor mid-level and junior frontend developers

- Collaborate with UX/UI designers to implement pixel-perfect, user-friendly interfaces

- Ensure cross-browser compatibility and mobile responsiveness across all supported devices

- Implement security best practices including XSS prevention and secure authentication flows

- Experience with Next.js

- Experience React, Next.Js and TypeScript expertise

- Advanced knowledge of modern React features (hooks, context, suspense, concurrent features)

- Proficient in state management solutions (Redux Toolkit, Zustand, or similar)

- Strong experience with CSS-in-JS solutions, Styled Components, or CSS modules

- Experience building responsive, mobile-first applications with modern CSS frameworks

- Knowledge of frontend build tools (Webpack, Vite, Rollup) and package managers

- Proficient in automated testing (Jest, React Testing Library, Cypress, Playwright)

- Experience with internationalization (i18n) and localization (l10n) for multi-language applications

- Strong understanding of web accessibility (WCAG guidelines) and semantic HTML

- Experience with performance optimization techniques and Core Web Vitals

- Knowledge of Progressive Web App development and service workers

- Familiarity with design systems and component library development

- Experience with Git workflows, code reviews, and collaborative development

- Leadership experience mentoring junior developers and leading technical discussions

- Strong problem-solving skills and attention to detail

- Excellent communication skills for cross-functional collaboration

- Knowledge of GraphQL and Apollo Client

- Experience with micro-frontend architecture

- Familiarity with insurance or financial services applications

- Experience with data visualization libraries (D3.js, Chart.js, Recharts)

- Knowledge of React Native for mobile development

- Experience with Storybook for component documentation

- Understanding of CI/CD pipelines and frontend deployment strategies

- Experience with A/B testing and feature flag implementations

- Knowledge of Web Components and custom elements

- Experience with monorepo tools (Nx, Lerna, Rush)

- Familiarity with backend technologies for better full-stack collaboration

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