Zup Innovation

Senior Frontend Developer, React

Zup Innovation

full-time

Posted on:

Location Type: Remote

Location: Brazil

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Job Level

Senior

Tech Stack

AngularAWSAzureCypressDockerJavaScriptJestReactReduxTerraformTypeScript

About the role

  • Build the initial functional interface for a reseller, validating user journeys, usability and backend integration;
  • Evolve the proof of concept into a structured frontend with clear patterns, automated tests and an architecture prepared for growth;
  • Ensure the frontend is scalable, reusable and adaptable for new partners while maintaining visual and experience consistency;
  • Replicate and maintain existing SAP journeys and registration flows, ensuring familiarity for the end user;
  • Translate complex business rules into clear, intuitive and secure interfaces;
  • Collaborate closely with backend teams to ensure consistent API contracts and a smooth end-to-end experience;
  • Propose usability improvements focused on efficiency and friction reduction;
  • Ensure frontend technical quality with sustainable code, automated tests and well-defined standards;
  • Support building the MVP and preparing the solution for expansion;
  • Ensure performance, stability and integrity of the user experience at scale.

Requirements

  • Advanced experience in React.js (v18+), including hooks, Context API and advanced componentization;
  • Advanced knowledge of TypeScript, with a focus on strong typing and API integration;
  • Proficiency in HTML5 and CSS3, including responsive layouts and cross-browser compatibility;
  • Solid experience with component-based frontend architecture and design systems;
  • Experience with state management (Redux, Zustand or similar);
  • Consumption of REST APIs with proper error handling, loading states and data consistency;
  • Strong foundation in UX/UI, particularly in replicating and evolving existing user journeys;
  • Knowledge of accessibility (a11y) and web performance (Lighthouse, Web Vitals);
  • Experience with Git/GitFlow and frontend testing tools (Jest, React Testing Library, Cypress);
  • Familiarity with CI/CD (Azure DevOps or similar) and integration with Azure environments;
  • Ability to deploy frontend applications and support basic observability and monitoring.
Benefits
  • Freedom to work from anywhere
  • Flexible working hours
  • Education allowance
  • In-house career development tool
  • Internal guilds and study/interest groups
  • Health insurance
  • Dental plan
  • Discounts or partnership for medication purchases
  • 24/7 telemedicine
  • Free online therapy
  • Wellhub (wellness platform)
  • Extended maternity leave
  • Extended paternity leave
  • CAZ – Zuppers Support Center
  • Meal and grocery vouchers
  • Life insurance
  • Transportation voucher
  • Home office allowance
  • Childcare assistance
  • Phone plan allowance
  • Profit Sharing (PLR)
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
React.jsTypeScriptHTML5CSS3component-based architecturestate managementREST APIsUX/UIaccessibilityfrontend testing
Soft Skills
collaborationusability improvementproblem-solvingcommunication