Full-Time Middle ReactJS Developer

Sigma Software is hiring a remote Full-Time Middle ReactJS Developer. The career level for this job opening is Experienced and is accepting São Paulo, Brazil based applicants remotely. Read complete job description before applying.

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Sigma Software

Job Title

Middle ReactJS Developer

Posted

Career Level

Full-Time

Career Level

Experienced

Locations Accepted

São Paulo, Brazil

Job Details

  • Develop and maintain user interface components using React, TypeScript, and the ConnectWise Asio Front-end framework
  • Collaborate with PHP Back-end developers to integrate APIs
  • Implement responsive, accessible, and high-performing UI layouts
  • Participate in migrating legacy interfaces to a modern React architecture
  • Write clean, maintainable, and testable code using modern React patterns (hooks, context, functional components)
  • Contribute to shared UI libraries and ensure component consistency across the platform
  • Debug, test, and optimize Front-end performance and browser compatibility
  • Work with QA and DevOps teams to ensure smooth releases via CI/CD pipelines
  • Participate in code reviews, sprint planning, and daily stand-ups within an Agile team
  • Learn from and adopt new technologies and practices of Senior engineers

Requirements:

  • 3–5 years of professional experience in Front-end development, with at least 2 years of experience using React in production
  • Solid understanding of JavaScript (ES6+), HTML5, and CSS3
  • Experience building and consuming RESTful APIs, preferably with PHP Back-ends
  • Knowledge of state management (Redux, Zustand, Recoil, or similar)
  • Familiarity with component-based design, reusability, and responsive layouts
  • Experience with Front-end tooling (Webpack, Vite, ESLint, Prettier, npm/yarn)
  • Understanding of Git-based workflows and Agile development practices
  • Basic knowledge of performance optimization and browser debugging tools
  • Good communication skills and the ability to collaborate effectively within cross-functional teams
  • A proactive, detail-oriented approach and a willingness to learn new technologies and frameworks

FAQs

What is the last date for applying to the job?

The deadline to apply for Full-Time Middle ReactJS Developer at Sigma Software is 27th of November 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ São Paulo, Brazil ] applicants. .

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