[Job - 31359]Sr. Developer FullStack (.Net/React) , Brazil

Ciandt; Brasil; Presencial; BRL 150 000 - 230 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Health insurance

Meal allowance

Childcare assistance

Paternity leave

Wellness programs

Profit sharing

Resumo da oferta

CI&T is seeking a skilled Fullstack Developer in Brazil to work across a modern stack (React on the frontend, .NET8/C# on the backend). The role focuses 70% frontend development and 30% backend, collaborating with product, design, and engineering teams to deliver scalable features.

You will implement reusable UI components, RESTful services, and integrate with Azure DevOps pipelines using GitFlow and YAML configurations.

Qualificações

• Develop and maintain responsive, performant UIs with React.
• Implement reusable components for scalable frontends.
• Collaborate with UX/UI designers to translate designs into features.
• Ensure cross-browser compatibility and performance.
• Write unit and integration tests for frontend components.
• Develop RESTful APIs and services with .NET8 and C#.
• Use MediatR, AutoMapper, and clean architecture patterns.
• Work with messaging/queueing (Rebus/Azure Service Bus) and databases (PostgreSQL, MongoDB).
• Leverage Azure DevOps, GitFlow, and CI/CD pipelines.

Responsabilidades

• Build high-quality, scalable features across the full stack.
• Collaborate with product, design, and engineering teams.
• Implement asynchronous messaging and data access layers.
• Contribute to code reviews to uphold quality.
• Participate in CI/CD through YAML pipelines and Azure DevOps.

Conhecimentos

Frontend development

React

JavaScript/TypeScript

RESTful APIs

Backend development

C#

.NET8

MediatR

AutoMapper

EF Core

Azure DevOps

GitFlow

Azure Pipelines

Azure Service Bus

PostgreSQL

MongoDB

xUnit

NSubstitute

Faker/Bogus

Docker

DDD

CQRS

Mediatr

Micro-frontend

Azure cloud

Formação académica

Computer science or related field

Ferramentas

React

.NET8

C#

PostgreSQL

MongoDB

EF Core

MediatR

AutoMapper

xUnit

NSubstitute

Azure DevOps

Git

Azure Pipelines

Azure Service Bus

Docker

YAML

Descrição da oferta de emprego

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 aFullstack Developerwith a strong focus onfrontend development (70%)and solid backend skills(30%), working in a modern tech stack built on.NET8, 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 interfacesusingReact
• Implementreusable componentsfollowing best practices for scalability and maintainability
• Collaborate with UX/UI designers to translate designs into functional features
• Ensurecross-browser compatibilityand performance optimization
• Writeunit and integration testsfor frontend components
• Develop and maintainRESTful APIsand services using.NET8 and C#
• Implement business logic using theMediator pattern (MediatR)for clean and decoupled architecture
• UseAutoMapperfor efficient object-to-object mapping
• Implementasynchronous messagingwithRebusandAzure Service Bus
• Contribute to database design and queries usingPostgreSQLandMongoDB
• Writeunit testsusingxUnitand generate realistic test data withFaker (Bogus)
• Createtest doubles and mocksusingNSubstitute
• Participate incode reviewsto uphold code quality standards
• Work withAzure DevOpsfor project management, version control, and pipelines
• FollowGitFlowbranching strategy for organized and release-oriented development
• Contribute toAzure Pipelines(CI/CD) using YAML-based configurations
• Solid experience withReact(hooks, context, state management)
• Proficiency inJavaScript / TypeScript
• Experience withcomponent-driven developmentand modern frontend architecture patterns
• Experience with.NET8andC#for backend development
• Familiarity withMediatR, AutoMapper, and clean architecture principles
• Experience withmessaging/queueing systems(Rebus, Azure Service Bus, or equivalent)
• Experience withPostgreSQL— relational modeling and query optimization
• Experience withMongoDB— document-based modeling and aggregation
• Proficiency withEntity Framework Core (EF Core)
• xUnitfor unit and integration testing
• NSubstitutefor mocking and test doubles
• Faker / Bogusfor realistic test data generation
• Azure DevOps, Git, GitFlow, Azure Pipelines, Azure Service Bus

Diferenciais:

• Knowledge ofCQRScombined with MediatR
• Familiarity withDocker and containerization
• Exposure toAzure cloud services(App Services, Functions)
• Understanding ofDomain-Driven Design (DDD)principles
• Experience withmicro-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.