Frontend React Developer – Specialist

Extractta

Frontend Developer specializing in React.js, participating in architectural decisions and contributing to scalable products at Extractta. Engaging in technical discussions and code reviews.

Posted 5/15/2026full-timeSão Paulo • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

AWSGraphQLJavaScriptNode.jsReactTypeScript

About the role

Key responsibilities & impact

Develop and maintain frontend applications using React.js and TypeScript
Participate in defining and evolving Micro Frontends (MFE) architecture
Develop or consume BFFs in Node.js (NestJS, Express or Fastify)
Integrate applications with REST and GraphQL APIs
Evolve and maintain component libraries and Design System
Work on continuous improvement of performance, accessibility and security
Write and maintain technical documentation (ADRs, RFCs, technical guides)
Collaborate with Architecture, Backend and SRE teams
Participate in technical discussions and code reviews
Ensure quality through automated tests and engineering best practices

Requirements

What you’ll need

Solid production experience with React.js and TypeScript
Experience with BFFs in Node.js
Experience integrating with REST or GraphQL APIs
Experience with Micro Frontends (MFE) architectures or modular frontend applications
Familiarity with frontend development best practices
Experience with testing and performing code reviews
Good communication skills and ability to work in a team
Desired:
Experience with AWS
Experience with observability
Experience with accessibility (WCAG)
Experience with i18n / internationalization

Benefits

Comp & perks

Meal and/or food vouchers
Access to Sesi and Sesc programs offering health, wellness and leisure services
Partnerships with educational institutions offering exclusive discounts on courses and programs
Opportunities for career growth and participation in strategic projects
Opportunity to work at a fast-growing company in the market

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

React.jsTypeScriptNode.jsNestJSExpressFastifyREST APIsGraphQL APIsMicro Frontendsautomated testing

Soft Skills

communicationteamworkcollaborationtechnical discussionscode reviews