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[Job-30394] Senior Fullstack Developer (React / Java / Node), Brazil

1 week ago
Brazil, United States
Full-time
Senior
Full-stack Engineer
Software Development
Agile Hibernate Java JavaScript JSON JWT Kafka Kibana Microservices MySQL OAuth OpenID Connect React REST API Spring Boot SQL Storybook
Apply Now
CI&T

CI&T

CI&T is a global digital technology agency empowering agile growth for leading companies through advanced technologies with a team of 2000 experts worldwide.

Internet Software & Services
5K-10K
Founded 1995
View All Jobs 91

Description

  • 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 within an Agile environment.
  • Create and maintain architecture, design, and system documentation.
  • Ensure code quality, performance, and security, including OAuth2, OIDC, and JWT.
  • Work with MySQL, Hibernate, Spring Data, and Spring Security.
  • Support production systems using Kibana and APM tools.
  • Participate in on-call rotation when needed.
  • Monitor and troubleshoot applications in production.

Requirements

  • Solid experience with full-stack development.
  • Strong hands-on experience with React, modern JavaScript (ES6+), DOM APIs, and JSON.
  • Proficient in backend development with Java, including older versions, and Spring Boot; recent hands-on experience is required.
  • Experience with microservices and enterprise integration patterns.
  • Solid experience with RDBMS such as MySQL and SQL.
  • Good understanding of web security standards including JWT, authentication, and related concepts.
  • Excellent problem-solving, debugging, and communication skills.
  • A structured approach to problem-solving and clear communication.
  • Comfortable working in the EST time zone.
  • Production support experience, including strong knowledge of application error handling and standard practices.
  • Familiarity with micro-frontend architecture and component libraries such as Storybook and styled-components is a plus.
  • Knowledge of event-driven architecture and Kafka is preferred.

Benefits

  • Health and dental insurance.
  • Meal and food allowance.
  • Childcare assistance.
  • Extended paternity leave.
  • Gym and wellness partnerships through Wellhub (Gympass) and TotalPass.
  • Profit sharing and results participation (PLR).
  • Life insurance.
  • Continuous learning platform through CI&T University.
  • Discount club.
  • Free online platform for physical, mental, and overall well-being.
  • Pregnancy and responsible parenting course.
  • Partnerships with online learning platforms.
  • Language learning platform.

Interested in this position?

Apply directly on the company website

Apply Now

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