Senior Frontend Developer, React
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Job Description
Frontend Developer specializing in React, building scalable user interfaces for strategic solutions at Zup Innovation. Focused on collaboration, user experience, and technical excellence.
Responsibilities:
- 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)
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