Senior Frontend Developer, React

Extractta

Senior Frontend Developer responsible for evolving applications in React.js at Extractta. Involves architecture decisions, micro frontends, and backend integration.

Posted 6/9/2026full-timeRemote • BrasilSeniorWebsite

Tech Stack

Tools & technologies

ASP.NETGraphQLJavaScript.NETReactTypeScript

About the role

Key responsibilities & impact

Develop and maintain Frontend applications using React.js, TypeScript, and a component-based architecture
Participate in the definition, evolution, and support of the Micro Frontends (MFE) architecture
Build integrations with REST and GraphQL APIs, ensuring a smooth experience between Frontend and Backend
Work on the development and maintenance of APIs and BFFs using .NET (ASP.NET Core / C#)
Evolve and maintain component libraries and the corporate Design System
Implement continuous improvements to application performance, accessibility, observability, and security
Write and maintain technical documentation (ADRs, RFCs, diagrams, and development guides)
Collaborate with Architecture, Backend, Product, and SRE teams to define scalable solutions
Actively participate in technical discussions, refinements, and code reviews
Ensure delivery quality through automated tests, engineering best practices, and development standards
Contribute to the evolution of the architecture and the modernization of Frontend and Backend applications

Requirements

What you’ll need

Strong production experience with React.js and TypeScript
Experience developing and consuming APIs using .NET (ASP.NET Core / C#)
Experience integrating REST and/or GraphQL APIs
Experience with Micro Frontends (MFE) architectures or modular frontend applications
Familiarity with frontend development best practices, componentization, and application architecture
Experience with automated testing, code reviews, and maintaining code quality
Knowledge of AI tools applied to software development (e.g., Claude, ChatGPT, GitHub Copilot), used to support analysis, development, testing, documentation, and productivity
Understanding of best practices for using AI in the development lifecycle, including validation of generated code, security, and delivery quality
Experience with enterprise AI tools and AI-assisted development workflows
Good communication skills and ability to work in a team
Intermediate English

Benefits

Comp & perks

Meal and/or food allowance (Meal or Food Voucher)
Partnership with Sesi and Sesc, offering access to health, wellness, and leisure services
Partnerships with educational institutions, offering exclusive discounts on courses and educational programs
Opportunities for career growth within the company and participation in strategic projects
Opportunity to work at a company that is rapidly expanding in the market

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

React.jsTypeScript.NETASP.NET CoreC#REST APIsGraphQL APIsMicro Frontendsautomated testingcomponent-based architecture

Soft Skills

communication skillsteamworkcollaborationtechnical discussionscode reviewsproblem-solvingadaptabilityattention to detailcritical thinkingcreativity