Senior Frontend Developer React (Hybrid in SP)

Description

Job Summary: We are seeking a Senior Frontend Developer specialized in React.js to evolve modern applications, participate in architectural decisions, and build micro frontends, integrating with BFFs in Node.js. Key Highlights: 1. Evolution of modern applications in React.js 2. Participation in architectural decisions and construction of micro frontends 3. Collaborative environment focused on scalable products We are looking for a **Senior Frontend Developer** to drive the evolution of modern applications in **React.js**, participate in architectural decisions, build micro frontends, and integrate with backend services via **Node.js BFF**. The candidate will work in a collaborative environment, engaging in technical discussions, evolving architectural standards, and contributing to building scalable, high-performance products. **Responsibilities and Duties** * Develop and maintain **Frontend applications in React.js and TypeScript** * Participate in defining and evolving the **Micro Frontend (MFE) architecture** * Develop or consume **Node.js BFFs** (NestJS, Express, or Fastify) * Integrate applications with **REST and GraphQL APIs** * Evolve and maintain **component libraries and Design Systems** * 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 testing and engineering best practices** **Requirements and Qualifications** * Solid production experience with **React.js and TypeScript** * Experience with **Node.js BFF** * Experience integrating **REST or GraphQL APIs** * Experience with **Micro Frontend (MFE) architectures**, or modular frontend applications * Experience with **frontend development best practices** * Experience with **testing and code review** * Strong communication skills and ability to work effectively in a team **Desirable:** * Experience with **AWS**. * Experience with **observability** * Experience with **accessibility (WCAG)** * Experience with **i18n / internationalization** **Additional Information** * Meal Allowance and/or Food Voucher; * SESI and SESC health plan, offering access to healthcare, wellness, and leisure services; * Partnerships with Educational Institutions, providing exclusive discounts on courses and educational programs; * Opportunities for career growth within the company and participation in strategic projects; * Opportunity to work at a rapidly expanding company in the market. Extractta was founded with the purpose of transforming technology into tangible results for companies across diverse industries. Throughout our journey, we have established ourselves as an innovation and technology consulting firm that unites strategy, people, and digital solutions to support organizations in their growth and transformation challenges. We operate across multiple domains — from digital innovation and transformation to project and operations management — helping companies achieve exceptional outcomes through efficiency, process intelligence, and continuous adaptation. We also stand out for our specialized consulting that helps our partners mature in digital culture, communication, data, and emerging technologies, while global partnerships enable us to deliver top-tier solutions to our customers’ ecosystems — all backed by a highly skilled team! At Extractta, we believe our competitive edge lies in our people. That’s why we invest in a collaborative, innovative, and open environment where every talent has space to learn, grow, and contribute to challenging projects that truly transform businesses. If you seek a company in constant evolution, passionate about technology, and committed to its employees’ development, this could be your place. Join Extractta and help build the future with us.