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Sigma Software Group

Middle/Senior Front-End Developer, React/TypeScript

Sigma Software Group

Middle/Senior Front-End Developer specializing in React/TypeScript for pet products marketplace, focusing on user experience and backend integration.

Posted 5/23/2026full-timeRemote • 🇧🇷 BrazilSeniorWebsite

Tech Stack

Tools & technologies
ApolloERPGraphQLJavaScriptNext.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 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 and contribute to continuous improvement and knowledge sharing
  • Work independently in a fast-paced environment, supporting estimations, problem-solving, and technical discussions

Requirements

What you’ll need
  • 5+ 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, including experience with 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

Benefits

Comp & perks
  • Employees can work remotely

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
React.jsTypeScriptJavaScriptHTML5CSS3GraphQLNext.jsReduxRESTful APIsperformance optimization
Soft Skills
collaborationproblem-solvingindependencecommunicationcode reviewknowledge sharingdebuggingtestingfast-paced environmentcontinuous improvement