Senior Frontend Developer – React

Jobtailor; São Paulo; Presencial; BRL 180 000 - 260 000; Tempo integral

Resumo da oferta

Jobtailor in São Paulo, Brazil, is seeking a skilled frontend engineer to design, build, and optimize React.js applications for enterprise-scale web platforms. You will translate wireframes and UX concepts into responsive interfaces, collaborate with design and backend teams, and contribute to performance improvements across devices and browsers.

The role emphasizes modern JavaScript/TypeScript, UI libraries, and CI/CD awareness, with an opportunity to leverage AI tools to accelerate

Qualificações

• Strong professional experience in frontend development, creating modern web applications with React.js
• Advanced proficiency in JavaScript (ES6+), TypeScript, HTML5, and CSS3 / SCSS
• Solid understanding of state management tools and patterns, such as Redux Toolkit, Context API, Zustand, or Recoil
• Experience handling asynchronous requests, integrating APIs, and working with JSON data using Axios or the Fetch API
• Experience with modern build pipelines and tools: Webpack, Vite, Babel, npm/pnpm/yarn
• Good command of responsive design frameworks and styling libraries, such as Tailwind CSS, Material UI, Styled Components, or Bootstrap
• Experience with Git and platforms such as GitHub, Azure DevOps, or GitLab
• Good understanding of Jest, React Testing Library, or Cypress; browser rendering behavior; DOM manipulation; and performance optimization
• Hands‑on experience with AI tools such as GitHub Copilot, Cursor, ChatGPT, Claude, or enterprise generative AI assistants
• Advanced verbal and written English communication skills
• Preferred: exposure to Next.js or SSR/SSG, CI/CD, WCAG, SEO, Azure DevOps, or Jira

Responsabilidades

• Design, build, and maintain efficient, reusable, and reliable React.js frontend components for enterprise web applications
• Work with UI/UX designers to translate wireframes, mockups, and user stories into high-quality visual interfaces
• Optimize frontend applications for speed, performance, responsiveness, and cross-browser compatibility
• Integrate frontend interfaces with RESTful APIs, GraphQL endpoints, and backend services
• Participate in code reviews, sprint planning, and daily stand-ups following Agile methodologies
• Debug and resolve frontend defects, memory leaks, and performance bottlenecks in modern browsers
• Prepare and maintain technical documentation, component libraries, and frontend coding standards
• Use AI-powered tools to accelerate development, refactoring, unit testing, and technical documentation

Conhecimentos

React.js

JavaScript ES6+

TypeScript

HTML5

CSS/SCSS

Redux Toolkit

Context API

Zustand

Recoil

Axios

Fetch API

Webpack

Vite

Babel

NPM/Yarn

Tailwind CSS

Material UI

Styled Components

Bootstrap

Git

GitHub

Azure DevOps

GitLab

Jest

React Testing Library

Cypress

AI Tools

GitHub Copilot

ChatGPT

Ferramentas

Git

GitHub

Azure DevOps

Webpack

Vite

Babel

NPM

Yarn

Descrição da oferta de emprego

• Design, build, and maintain efficient, reusable, and reliable React.js frontend components for enterprise web applications
• Work with UI/UX designers to translate wireframes, mockups, and user stories into high-quality visual interfaces
• Optimize frontend applications for speed, performance, responsiveness, and cross-browser compatibility
• Integrate frontend interfaces with RESTful APIs, GraphQL endpoints, and backend services
• Participate in code reviews, sprint planning, and daily stand-ups following Agile methodologies
• Debug and resolve frontend defects, memory leaks, and performance bottlenecks in modern browsers
• Prepare and maintain technical documentation, component libraries, and frontend coding standards
• Use AI-powered tools to accelerate development, refactoring, unit testing, and technical documentation

Requirements

• Strong professional experience in frontend development, creating modern web applications with React.js
• Advanced proficiency in JavaScript (ES6+), TypeScript, HTML5, and CSS3 / SCSS
• Solid understanding of state management tools and patterns, such as Redux Toolkit, Context API, Zustand, or Recoil
• Experience handling asynchronous requests, integrating APIs, and working with JSON data using Axios or the Fetch API
• Experience with modern build pipelines and tools: Webpack, Vite, Babel, npm/pnpm/yarn
• Good command of responsive design frameworks and styling libraries, such as Tailwind CSS, Material UI, Styled Components, or Bootstrap
• Experience with Git and platforms such as GitHub, Azure DevOps, or GitLab
• Good understanding of Jest, React Testing Library, or Cypress; browser rendering behavior; DOM manipulation; and performance optimization
• Hands‑on experience with AI tools such as GitHub Copilot, Cursor, ChatGPT, Claude, or enterprise generative AI assistants
• Advanced verbal and written English communication skills
• Preferred: exposure to Next.js or SSR/SSG, CI/CD, WCAG, SEO, Azure DevOps, or Jira

Core Competencies

Demonstrates expertise in frontend development with a strong focus on React.js, JavaScript, and modern web application design. Proficient in optimizing performance, integrating APIs, and utilizing AI tools to enhance development processes.

Highest-signal resume keywords

• React.js Frontend Development
• JavaScript (ES6+), TypeScript, HTML5, CSS3/SCSS
• State Management (Redux Toolkit, Context API, Zustand, Recoil)
• API Integration (Axios, Fetch API)
• Agile Methodologies Participation

Hard Skills

• Frontend Development
• React.js
• JavaScript (ES6+)
• TypeScript
• HTML5
• CSS3/SCSS
• State Management
• API Integration
• Performance Optimization
• Technical Documentation

Soft Skills

• Verbal Communication
• Written Communication

Industry Keywords

• Responsive Design
• Cross-Browser Compatibility
• Agile Methodologies
• CI/CD
• SEO
• WCAG

Tools & Technologies

• Git
• GitHub
• Azure DevOps
• Webpack
• Vite
• Babel
• Npm/pnpm/yarn
• Jest
• React Testing Library
• AI Tools (GitHub Copilot, ChatGPT)