What we offerVacanciesMiddle Frontend Developer

Middle Frontend Developer

Brazil Colombia Latin America Mexico Engineering HTML/CSS JavaScript React Software Development
Apply Now

Required skills

React.js / strong
JavaScript (ES6+) / strong
GraphQL / good
HTML5/CSS3 / good
Collaboration & Communication / strong

Do you enjoy building sleek, high-performance web applications? We are looking for a Middle Frontend Developer to join our Front-end Development Team. This is a full-time remote opportunity based in Brasília, Federal District, Brazil, with flexibility to work from anywhere.

At Sigma Software, we partner with global innovators to deliver cutting-edge solutions across industries. In this role, you will work on modern web applications using React.js and GraphQL, collaborating with talented designers, backend developers, and QA engineers to create seamless user experiences.

Why join us? You’ll benefit from remote work flexibility, professional growth opportunities, and the chance to work on international projects with a supportive, skilled team.

Customer

Our customer is a technology-driven organization delivering modern web solutions to global clients. They focus on creating scalable, high-performance applications with intuitive user interfaces, leveraging cutting-edge frameworks and tools. Their teams work across diverse industries, ensuring each product meets the highest standards of usability, performance, and security.

Project

The project involves developing and maintaining advanced web applications using React.js and GraphQL. The goal is to deliver seamless, responsive, and user-friendly experiences for end users while ensuring scalability and performance. You will collaborate closely with backend developers, designers, and QA engineers to build robust solutions.

Requirements

  • 2+ years of experience in front-end development with React.js
  • Strong understanding of JavaScript (ES6+), HTML5, and CSS3
  • Hands-on experience with GraphQL (Apollo Client or similar)
  • Familiarity with React Hooks, Context API, Redux (optional)
  • Experience with RESTful APIs and third-party integrations
  • Understanding of component-based architecture and state management
  • Knowledge of performance optimization and debugging techniques
  • Upper-Intermediate English level
  • Bachelor’s degree in Computer Science or related field

WILL BE A PLUS

  • Experience with Playwright or other automated testing frameworks
  • Familiarity with CI/CD pipelines and DevOps practices

 

Personal Profile

  • Detail-oriented developer with a passion for creating seamless user experiences
  • Strong problem-solving skills and ability to work in a collaborative environment
  • Proactive in identifying performance improvements and UI enhancements

 

Responsibilities

  • Develop and maintain web applications using React.js and GraphQL
  • Collaborate with designers and backend developers to build scalable, high-performance applications
  • Write clean, maintainable, and efficient code following best practices
  • Implement responsive and user-friendly UI components
  • Optimize applications for performance and scalability
  • Debug and troubleshoot issues across multiple browsers and devices
  • Participate in code reviews and contribute to team knowledge-sharing
  • (Optional) Write and maintain end-to-end tests using Playwright
Meet your team!

WHY US

  • Diversity of Domains & Businesses
  • Variety of technology
  • Health & Legal support
  • Active professional community
  • Continuous education and growing
  • Flexible schedule
  • Remote work
  • Outstanding offices (if you choose it)
  • Sports and community activities

REF3914E

Share this vacancy

apply now

apply now

    OR

    Drop your CV here, or

    Supports: DOC, DOCX, PDF, max size 5 Mb


    Submit application

    Take a quiz

    Take a quiz

      Was it comfortable to apply the CV?


      How did you find us?




      Did you hear about us before visiting the site?