SS

Senior Front-End Developer (React.js)

Posted 20 days ago

RemoteSão Paulo, SP, BrazilSE

Job Description

  • 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

Qualifications

  • 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

WILL BE A PLUS

  • Experience with CI/CD pipelines
  • Familiarity with cloud platforms (AWS, Azure, GCP)
  • Knowledge of automated testing frameworks
  • Understanding of accessibility standards in web development
  • Experience in travel or hospitality domain projects
Job details
Workplace
Remote
Location
São Paulo, SP, Brazil
Experience
SE
SS
Sigma Software
View company page

Sigma Software development company offers turnkey solutions development and software development teams. Learn how our 1800+ software experts can support a project.

Apply smarter with Jobr

Jobr aggregates jobs directly from company career portals — no middlemen. Our team applies on your behalf with AI-tailored resumes, reviewed by a human before submission.

Direct from company career pages
AI-personalised cover letters
Human review before every submit
Application tracking & follow-ups