[Job-32606] Senior Full Stack Developer, Brazil

CI&T; Brazil; On-site; BRL 180,000 - 260,000; Full time

Benefits offered by this job

Health insurance

Meal allowance

Childcare assistance

Paternity leave

Gym partnerships

Profit sharing (PLR)

Life insurance

Learning platform

Discount club

Well-being platform

Online learning partners

Language learning

Job summary

CI&T is seeking a Senior Full Stack + iOS Developer to strengthen our engineering team in Brazil. You will build scalable web and mobile apps, contribute to API design, and help shape architecture across backend, frontend, and iOS.

You will collaborate with cross-functional teams, apply Hexagonal Architecture and CQRS where appropriate, and ensure code quality, security, and maintainability in a fast-paced environment.

Qualifications

• Extensive experience in full-stack development with Java/Spring and modern frontend.
• Strong frontend skills with React, Node.js and TypeScript/JavaScript.
• iOS development experience using Swift and Xcode is required.

Responsibilities

• Design and implement scalable backend services and REST APIs.
• Develop responsive frontend interfaces and iOS features.
• Collaborate on architecture decisions and engineering best practices.

Skills

Full-stack development

Java

Spring Boot

React

Node.js

TypeScript/JavaScript

Swift

REST APIs

Hexagonal Architecture

CQRS

Docker/Kubernetes

Git workflows

Tools

MariaDB

PostgreSQL

Spring Data JPA

JUnit 5

Mockito

Cypress/Playwright

GitHub Actions

SonarCloud

Kafka

Job description

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.

We are looking for a Senior Full Stack + iOS Developer to join our engineering team and contribute to the development and evolution of modern web and mobile applications.

In this role, you will work across backend, frontend, and iOS development, building scalable services, responsive user interfaces, and mobile experiences. You will contribute to architectural decisions, API design, and engineering best practices while collaborating with cross-functional teams to deliver high-quality, secure, and maintainable solutions.

Requirements

• Strong professional experience in full-stack software development.
• Solid proficiency in Java, Spring Boot, and Java microservices.
• Hands‑on experience with React, Node.js, and TypeScript/JavaScript.
• Professional experience developing iOS applications using Swift and Xcode.
• Experience designing and developing REST APIs and backend integration patterns.
• Good understanding of software architecture principles, particularly Hexagonal Architecture and CQRS.
• Experience with React Microfrontends and modern frontend development practices.
• Knowledge of relational databases, particularly MariaDB and PostgreSQL, and experience with Spring Data JPA.
• Experience implementing automated testing strategies, including unit, integration, and E2E testing.
• Familiarity with testing tools such as JUnit 5, Mockito, AssertJ, Jest, React Testing Library, Cypress, Playwright, or Karate.
• Understanding of Docker and Kubernetes fundamentals.
• Experience with Git and collaborative development workflows, including Git Flow or Trunk-Based Development.
• Familiarity with CI/CD pipelines using GitHub Actions and code quality tools such as SonarCloud.
• Knowledge of application monitoring and observability practices.
• Strong problem‑solving skills, attention to code quality, and ability to collaborate with distributed teams.

Nice to Have

• Experience with event‑driven architectures and messaging platforms such as Kafka.
• Knowledge of mutation testing tools such as PIT or StrykerJS.
• Experience with service virtualization tools such as TrafficParrot.
• Familiarity with Microsoft Azure cloud services.
• Experience with Azure Application Insights and other monitoring solutions.
• Knowledge of the Sewing Design System.
• Experience implementing internationalization and localization across multiple languages, including Spanish, English, and Portuguese.
• Experience with data visualization libraries and charting solutions.
• Familiarity with advanced distributed system patterns and microservices architecture.

#LI-GP1

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.