Senior .NET Developer

🕒 June 11

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CI&T

WebsiteLinkedInAll Job Openings

5001 - 10000 employees

Founded 1995

💼 Consulting

🏥 Healthcare

📣 Marketing

💰 $5.5M Venture Round on 2014-04

Consulting • Healthcare • Marketing

CI&T is a global tech transformation specialist focusing on helping organizations navigate their technology journey. With services spanning from application modernization and cloud solutions to AI-driven data analytics and customer experience, CI&T empowers businesses to accelerate their growth and maximize operational efficiency. The company emphasizes digital product design, strategy consulting, and immersive experiences, ensuring a robust support system for enterprises in various industries.

📋 Description

• Develop and maintain high-quality C# code across our microservices ecosystem • Implement complex business logic for a large company in the food industry • Manage personal priorities and performance to deliver high-quality, high-performance solutions • Document work and contribute to continuous integration/continuous delivery (CI/CD) processes • Develop APIs that enable communication between our microservices • Implement messaging patterns for asynchronous communication between services • Integrate with external systems and databases while preserving system integrity • Ensure proper error handling and resilience in service communications • Write comprehensive unit and integration tests for C# components • Conduct code reviews to maintain code quality and architectural integrity • Troubleshoot and resolve complex technical issues across the service ecosystem • Mentor junior developers in C# best practices and design patterns • Contribute to technical decision-making and architectural discussions

🎯 Requirements

• Professional experience with C# and .NET development • Strong knowledge of .NET Core / .NET 5+ and ASP.NET Core Web API • Experience with microservices architecture and distributed systems • Proficiency in asynchronous programming patterns in C# (Task, async/await) • Advanced C# programming skills, including LINQ, generics, and reflection • Experience with dependency injection and inversion of control patterns • Familiarity with ORM frameworks (Entity Framework Core) • Knowledge of RESTful API design and implementation • Experience with SQL Server and writing efficient queries • Understanding of data access patterns and transaction management • Knowledge of database performance optimization techniques • Experience 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 Docker • Advanced / fluent English • Nice to have: • 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/authorization frameworks (IdentityServer, 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

🏖️ Benefits

• Health and dental insurance • Meal allowance / food vouchers • Childcare assistance • Extended paternity leave • Partnerships with gyms and health & wellness providers via Wellhub (Gympass) and TotalPass • Profit sharing and results participation (PLR) • Life insurance • Continuous learning platform (CI&T University) • Employee 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!