[Job - 29262] Senior Fullstack Developer (React+Java+Node), Brazil

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

In this role, you’ll be fully integrated into the digital product teams of a household‑name automotive brand in the USA. The solutions you build will directly impact how customers discover, buy, and interact with vehicles and connected services.

We’re looking for a Senior Fullstack Developer with strong experience in React and Java (Spring Boot) , and familiarity with Node.js and GraphQL . You’ll design, build, and support enterprise-scale web applications and microservices that are performant, secure, and user‑centric.

Responsabilities:

• Design, develop, unit test, and integrate fullstack application components.
• Build scalable web apps using React on the frontend and Java 21 / Spring Boot on the backend.
• Implement RESTful APIs, microservices, and integrations with enterprise systems.
• Collaborate with UX/UI, product, architecture , and QA teams in an Agile environment.
• Create and maintain architecture , design, and system documentation.
• Ensure code quality, performance, and security (OAuth2, OIDC, JWT).
• Work with MySQL, Hibernate, Spring Data, and Spring Security.
• Support production systems using Kibana, APM tools

Requirements:

• Solid experience with fullstack development.
• Strong hands‑on with React, modern JavaScript (ES6+), DOM APIs, JSON.
• Strong backend experience with Java (preferably Java 21) and Spring Boot.
• Experience with microservices and enterprise integration patterns.
• Solid RDBMS experience (MySQL or similar) and SQL.
• Good understanding of web security standards (OAuth2, OIDC, JWT).
• Excellent problem-solving, debugging, and communication skills.
• Comfortable working near EST time zone.

Nice to have:

• Experience with Node.js and GraphQL.
• Micro‑frontend architecture and component libraries (Storybook, styled‑components).
• Event‑driven architecture and Kafka.
• Production support experience (Kibana, APM, hotfixes).

Why join us:

• Work on high‑impact, customer‑facing products for leading global brands.
• Collaborate with talented teams across strategy, design, data, and engineering.
• Be part of a digital‑first culture focused on innovation, quality, and continuous improvement."