CI&T

Senior Fullstack Developer, React, Java, Node

CI&T

full-time

Posted on:

Location Type: Hybrid

Location: Brazil

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Job Level

Senior

Tech Stack

GraphQLHibernateJavaJavaScriptKafkaMicroservicesMySQLNode.jsRDBMSReactSpringSpring BootSpringBootSQL

About the role

  • Design, develop, unit test, and integrate full-stack application components.
  • Build scalable web applications 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 and APM tools.

Requirements

  • Solid experience with full-stack development.
  • Strong hands-on experience with React, modern JavaScript (ES6+), DOM APIs, and 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 the EST time zone.
  • Nice to have:
  • Experience with Node.js and GraphQL.
  • Experience with micro-frontend architectures and component libraries (Storybook, styled-components).
  • Experience with event-driven architectures and Kafka.
  • Production support experience (Kibana, APM, hotfixes).
Benefits
  • Health and dental insurance
  • Meal and food allowance
  • Childcare assistance
  • Extended paternity leave
  • Partnerships with gyms and health & wellness providers 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!
Applicant Tracking System Keywords

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

Hard Skills & Tools
full-stack developmentReactJava 21Spring BootRESTful APIsmicroservicesMySQLHibernateSpring DataSpring Security
Soft Skills
problem-solvingdebuggingcommunication