The Role
Develop and maintain high-quality C# code within a complex microservices ecosystem. Build scalable APIs, asynchronous messaging integrations, database and external-system connections, and resilient distributed services. Implement business logic, automated unit and integration testing, CI/CD practices, code reviews, documentation, and performance improvements. Troubleshoot complex technical issues while ensuring architectural integrity, error handling, and system reliability.
Summary Generated by Built In
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.
Estamos em busca de um Engenheiro de Software Sênior com sólida experiência em C# e .NET para atuar no desenvolvimento e manutenção de um ecossistema de microsserviços de alta complexidade, voltado para uma grande empresa do setor alimentício. O profissional terá papel ativo na implementação de soluções técnicas robustas, escaláveis e de alta performance.
Responsabilidades:
- Desenvolver e manter código C# de alta qualidade no ecossistema de microsserviços
- Implementar lógicas de negócio complexas para o setor alimentício
- Documentar o próprio trabalho e contribuir com processos de CI/CD
- Realizar code reviews para garantir qualidade de código e integridade arquitetural
- Gerenciar suas próprias prioridades e entregas com autonomia e alto desempenho
- Desenvolver APIs para facilitar a comunicação entre microsserviços
- Implementar padrões de mensageria para comunicação assíncrona entre serviços
- Integrar com sistemas externos e bancos de dados mantendo a integridade do sistema
- Garantir tratamento adequado de erros e resiliência nas comunicações entre serviços
- Escrever testes unitários e de integração abrangentes para componentes C#
- Solucionar e resolver problemas técnicos complexos no ecossistema de serviços
Requisitos:
- Experiência profissional com C# e desenvolvimento .NET
- Conhecimento sólido de .NET Core/5+ e ASP.NET Core Web API
- Habilidades avançadas em C#: LINQ, Generics e Reflection
- Proficiência em padrões de programação assíncrona (Task, async/await)
- Experiência com arquitetura de microsserviços e sistemas distribuídos
- Experiência com Injeção de Dependência e padrões de Inversão de Controle (IoC)
- Conhecimento de design e implementação de APIs RESTful
- Experiência com SQL Server e escrita de queries eficientes
- Familiaridade com frameworks ORM (Entity Framework Core)
- Compreensão de padrões de acesso a dados e gerenciamento de transações
- Conhecimento de técnicas de otimização de performance em banco de dados
- Experiência com formatos de serialização de dados (JSON, XML)
- Proficiência em frameworks de testes unitários (xUnit, NUnit ou MSTest)
- Experiência com frameworks de mocking (Moq, NSubstitute)
- Familiaridade com conteinerização usando Docker
- Inglês Avançado/Fluente é obrigatório
Diferencial:
- Compreensão de pipelines de CI/CD para aplicações .NET
- Conhecimento de logging, monitoramento e observabilidade em sistemas distribuídos
- Experiência com GraphQL em aplicações .NET
- Conhecimento de frameworks de autenticação/autorização (Identity Server, JWT)
- Familiaridade com padrões CQRS e Mediator
- Experiência com internacionalização e localização em .NET
- Compreensão de princípios de Domain-Driven Design (DDD)
- Compreensão de princípios de Test-Driven Development (TDD)
- Conhecimento de práticas de integração contínua
#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.
Skills Required
- Professional experience with C# and .NET development
- Strong knowledge of .NET Core or .NET 5+ and ASP.NET Core Web API
- Advanced C# skills, including LINQ, Generics, and Reflection
- Proficiency with asynchronous programming patterns, including Task and async/await
- Experience with microservices architecture and distributed systems
- Experience with dependency injection and inversion of control patterns
- Knowledge of RESTful API design and implementation
- Experience with SQL Server and efficient query writing
- Familiarity with Entity Framework Core or other ORM frameworks
- Understanding of data access patterns and transaction management
- Knowledge of database performance optimization techniques
- Experience with JSON and XML data serialization formats
- Proficiency with unit testing frameworks such as xUnit, NUnit, or MSTest
- Experience with mocking frameworks such as Moq or NSubstitute
- Familiarity with Docker containerization
- Advanced or fluent English
- Understanding of CI/CD pipelines for .NET applications
- Knowledge of logging, monitoring, and observability in distributed systems
- Experience with GraphQL in .NET applications
- Knowledge of authentication and authorization frameworks, including IdentityServer and JWT
- Familiarity with CQRS and Mediator patterns
- Experience with internationalization and localization in .NET
- Understanding of Domain-Driven Design principles
- Understanding of Test-Driven Development principles
- Knowledge of continuous integration practices
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The Company
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.
