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.
Job Description
- 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
- 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
Top Skills
What We Do
Sigma Software Group, an award-winning and trusted IT partner, has been serving customers for over 21 years, providing comprehensive IT solutions to various businesses, ranging from startups to established software product houses. As one of Europe's substantial IT consultancies, it brings together a dedicated workforce of over 2,100 professionals in 40 offices across 19 countries. With a diverse client base, including more than 300 enterprises, including Fortune 500 stalwarts, Sigma Software Group is a preferred choice for developing solutions that help businesses create cutting-edge products while meeting their unique needs.
Sigma Software Group operates as a dynamic ecosystem of tech companies, offering 25 ready-to-implement innovative products and 40+ value-added services. Furthermore, Sigma Software Group is committed to fostering innovation through initiatives such as the Sigma Software Labs business incubator, Sigma Software University, the SID Venture Partners VC Fund, UA Tech Network, Techosystem, the European Business Association, and other collaborative efforts.
Since 2015, Sigma Software Group has consistently earned recognition on the IAOP's prestigious World's Top 100 Outsourcing list. The company's accomplishments have also been acknowledged by prominent global media outlets such as Forbes, CNBC, The Times, and Reuters
