Empresa: CI&T
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 • 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. Sobre a empresa: 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.