[Job - 29662] Sr. Fullstack Developer (React / Java / Node)

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EngineeringFullstack Developer

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Overview

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,

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EngineeringFullstack Developer

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.

With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.

We’re looking for a Senior Full-Stack Developer (7+ years) 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.

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, and participate in on‑call rotation when needed.

7+ years of fullstack development experience.

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.

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).

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.

Our benefits:

-Health and dental insurance

-Meal and food allowance

-Childcare assistance

-Extended paternity leave

-Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;

-Profit Sharing and Results Participation (PLR);

-Life insurance

-Continuous learning platform (CI&T University);

-Discount club

-Free online platform dedicated to physical, mental, and overall well-being

-Pregnancy and responsible parenting course

-Partnerships with online learning platforms

-Language learning platform

And many more!

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.

We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.