Desenvolvedor(a) Front-end React - Sênior

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Desenvolvedor(a) Front-end React - Sênior in Brazil.

This role offers the opportunity to work on high-impact digital products used by millions of people, contributing to solutions that directly improve everyday experiences in areas such as mobility, health, food, and culture. You will join a high-performance engineering environment where autonomy, technical ownership, and collaboration are highly valued. The position involves building and evolving scalable, modular, and performant front-end architectures using modern React ecosystems. You will collaborate closely with backend, UX/UI, and product teams, influencing technical decisions and ensuring best practices across development cycles. This is a hands-on and leadership-oriented role, where mentoring, code quality, and continuous improvement are part of the daily routine. The environment is fast-paced, innovation-driven, and focused on delivering robust digital experiences at scale.

In this role, you will be responsible for designing, developing, and maintaining scalable front-end applications with a strong focus on performance, usability, and architecture quality. You will:

• Develop and maintain React-based web applications using modular and reusable architecture principles.
• Lead technical decisions related to front-end architecture, coding standards, and best practices.
• Use Claude Code to generate, review, refactor, and document code, as well as support automated testing efforts.
• Integrate and consume REST and GraphQL APIs, ensuring efficient data handling and application performance.
• Ensure high standards of performance and accessibility, including Core Web Vitals and Lighthouse metrics.
• Implement automated testing strategies, including unit and integration tests using Jest and React Testing Library.
• Participate in code reviews, promoting technical improvements and architectural consistency.
• Mentor and support mid-level and junior developers, fostering technical growth within the team.
• Collaborate closely with backend, UX/UI, and product teams to deliver cohesive solutions.
• Produce and maintain clear, up-to-date technical documentation.

Requirements

The ideal candidate has strong experience in front-end development and a solid understanding of modern React ecosystems, along with a proactive and collaborative mindset. You should have:

• Proven experience in front-end development with React in production environments.
• Strong knowledge of JavaScript (ES6+) and TypeScript.
• Experience with state management tools such as Redux, Zustand, or React Query.
• Solid understanding of HTML5, CSS3, SASS, or Styled Components.
• Practical experience using Claude Code for development tasks such as code generation, refactoring, and debugging.
• Experience with Git, CI/CD pipelines, and version control workflows.
• Understanding of front-end security best practices (XSS, CSRF, CSP).
• Experience working in agile environments (Scrum/Kanban).
• Strong analytical and problem-solving skills with a critical thinking mindset.
• Clear communication skills and ability to collaborate across multidisciplinary teams.
• Leadership mindset with mentoring capabilities and attention to detail.

Nice to have:

• Experience with Next.js.
• Familiarity with E2E testing tools such as Cypress or Playwright.
• Knowledge of performance optimization at scale.
• Exposure to cloud platforms (AWS, Azure, or GCP) and DevOps practices.

Benefits

• Competitive compensation aligned with experience
• Flexible and collaborative work environment
• Remote-friendly structure
• Health and wellness benefits (varies by contract model)
• Opportunities for technical growth and leadership development
• Access to continuous learning initiatives and knowledge-sharing culture
• Participation in impactful large-scale digital products
• Strong culture of mentorship, collaboration, and innovation
• Inclusion in a diverse and innovation-driven technology ecosystem