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 Fullstack Developer with a strong focus on frontend development (70%) and solid backend skills (30%), working in a modern tech stack built on .NET 8, C#, and React. You will build high-quality, scalable, and maintainable features across the full stack, collaborating closely with product, design, and engineering teams.
Requisitos:
- Develop and maintain responsive, performant, and accessible user interfaces using React
- Implement reusable components following best practices for scalability and maintainability
- Collaborate with UX/UI designers to translate designs into functional features
- Ensure cross-browser compatibility and performance optimization
- Write unit and integration tests for frontend components
- Develop and maintain RESTful APIs and services using .NET 8 and C#
- Implement business logic using the Mediator pattern (MediatR) for clean and decoupled architecture
- Use AutoMapper for efficient object-to-object mapping
- Implement asynchronous messaging with Rebus and Azure Service Bus
- Contribute to database design and queries using PostgreSQL and MongoDB
- Write unit tests using xUnit and generate realistic test data with Faker (Bogus)
- Create test doubles and mocks using NSubstitute
- Participate in code reviews to uphold code quality standards
- Work with Azure DevOps for project management, version control, and pipelines
- Follow GitFlow branching strategy for organized and release-oriented development
- Contribute to Azure Pipelines (CI/CD) using YAML-based configurations
- Solid experience with React (hooks, context, state management)
- Proficiency in JavaScript / TypeScript
- Experience with component-driven development and modern frontend architecture patterns
- Experience with .NET 8 and C# for backend development
- Familiarity with MediatR, AutoMapper, and clean architecture principles
- Experience with messaging/queueing systems (Rebus, Azure Service Bus, or equivalent)
- Experience with PostgreSQL — relational modeling and query optimization
- Experience with MongoDB — document-based modeling and aggregation
- Proficiency with Entity Framework Core (EF Core)
- xUnit for unit and integration testing
- NSubstitute for mocking and test doubles
- Faker / Bogus for realistic test data generation
- Azure DevOps, Git, GitFlow, Azure Pipelines, Azure Service Bus
Diferenciais:
- Knowledge of CQRS combined with MediatR
- Familiarity with Docker and containerization
- Exposure to Azure cloud services (App Services, Functions)
- Understanding of Domain-Driven Design (DDD) principles
- Experience with micro-frontend architecture
#LI-AM2
Skills Required
- Strong experience developing responsive, performant, and accessible user interfaces with React, including hooks, context, state management, reusable components, and modern frontend architecture
- Proficiency with JavaScript and TypeScript
- Experience with component-driven development
- Experience developing backend applications with .NET 8 and C#
- Familiarity with MediatR, AutoMapper, and clean architecture principles
- Experience with messaging and queueing systems such as Rebus and Azure Service Bus, or equivalent
- Experience with PostgreSQL, including relational modeling and query optimization
- Experience with MongoDB, including document-based modeling and aggregation
- Proficiency with Entity Framework Core
- Experience writing unit and integration tests with xUnit
- Experience using NSubstitute for mocking and test doubles
- Experience using Faker or Bogus for test data generation
- Experience with Azure DevOps, Git, GitFlow, Azure Pipelines, and Azure Service Bus
- Knowledge of CQRS combined with MediatR
- Familiarity with Docker and containerization
- Exposure to Azure cloud services, including App Services and Functions
- Understanding of Domain-Driven Design principles
- Experience with micro-frontend architecture
What We Do
CI&T is your end-to-end digital transformation partner. As a digital native, we bring a 27-year track record of accelerating business impact through complete and scalable digital solutions. With a global presence of 6,000+ professionals in strategy, research, data science, design and engineering, we unlock top-line growth, improve customer experience and drive operational efficiency.
