[Job 27825] Developer Back-end Senior -.NET, Brazil

We are

tech transformation

specialists, uniting human expertise with AI to create scalable tech solutions.With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.We are looking for a Senior Developer to be part of our team! You will play a crucial role in designing and developing scalable cloud-native software solutions. Collaborating with cross-functional teams, you will ensure the delivery of high-quality applications that meet complex project requirements while embracing our values of collaboration, innovation, and transformation.Responsibilities:Develop and maintain high-quality code across the service ecosystemImplement complex business logics and solutionsManage own priorities and performance to deliver high quality, highly performant solutionsDocumenting your work and contribute to continuous integration/continuous delivery (CI/CD) processesDevelop APIs that facilitate communication between systemsImplement messaging patterns for asynchronous communication between servicesIntegrate with external systems and databases while maintaining system integrityEnsure proper error handling and resilience in service communicationsWrite comprehensive unit and integration testsConduct code reviews to maintain code quality and architectural integrityTroubleshoot and resolve complex technical issues across the service ecosystemMentor junior developers in C# best practices and design patternsContribute to technical decision-making and architectural discussionsRequirements:Experience with C# and .NET developmentKnowledge of RESTful API design and implementationExperience with microservices architecture and distributed systemsProficiency in asynchronous programming patternsExperience with SQL Server and writing efficient queriesUnderstanding of data access patterns and transaction managementKnowledge of database performance optimization techniquesExperience with data serialization formats (JSON, XML)Proficiency in unit testing frameworks (xUnit, NUnit, or MSTest)Experience with mocking frameworks (Moq, NSubstitute)Familiarity with containerization using DockerAdvanced/fluent EnglishNice to Have:Experience with Java and Kotlin developmentUnderstanding of CI/CD pipelinesKnowledge of logging, monitoring, and observability in distributed systemsKnowledge of continuous integration practices 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 platformAnd many more!More details about our benefits here: 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 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.