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Sigma Software Group

Senior Front-End Developer, React.js

Sigma Software Group

Senior Front-End Developer with expertise in React.js in the travel and hospitality domain. Collaborating closely with teams to develop high-performance web applications for millions of customers.

Posted 5/28/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies
ApolloGraphQLJavaScriptNext.jsReactReduxTypeScript

About the role

Key responsibilities & impact
  • Develop and maintain scalable web applications using React.js and TypeScript
  • Build responsive, user-friendly, and reusable UI components following best practices
  • Integrate frontend applications with APIs and backend services
  • Collaborate closely with product, backend, and UX teams to clarify requirements and deliver solutions
  • Write clean, maintainable, and efficient code with strong testing and debugging practices
  • Troubleshoot and resolve issues across frontend applications and user flows
  • Participate in code reviews, knowledge sharing, and continuous improvement initiatives
  • Support estimations, problem-solving, and technical discussions in a fast-paced environment

Requirements

What you’ll need
  • 7+ years of experience in front-end development with React.js
  • Strong understanding of JavaScript (ES6+), TypeScript, Next.js, HTML5, and CSS3
  • Hands-on experience with GraphQL (Apollo Client or similar)
  • Familiarity with React Hooks, Context API, and Redux (Redux-Saga optional)
  • Experience with RESTful APIs and third-party integrations
  • Understanding of component-based architecture and state management
  • Knowledge of performance optimization and debugging techniques
  • Experience in travel or hospitality domain projects

Benefits

Comp & perks
  • Remote work 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score

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Hard Skills & Tools
React.jsTypeScriptJavaScriptNext.jsHTML5CSS3GraphQLRESTful APIsReduxperformance optimization
Soft Skills
collaborationproblem-solvingcommunicationcode reviewknowledge sharingcontinuous improvementtroubleshootingdebuggingestimationadaptability