[Job - 28699] Master Backend (C# / .NET) Developer, Brazil

Job Description

For this challenge, we are looking for a senior backend engineering professional to help evolve scalable solutions, support business growth, enable multi-brand operations, and ensure the sustainable evolution of the platform.

This person will also play an important role in strengthening internal ownership through technical excellence, architectural vision, and knowledge sharing.

Requirements for this challenge:

• Strong experience with C# and .NET, ideally .NET 8/9 and ASP.NET Core, in production environments
• Solid experience designing and operating distributed systems and microservices architectures
• Strong knowledge of event-driven architecture and asynchronous processing
• Advanced experience with Azure SQL and Entity Framework Core, including performance tuning and data modeling
• Hands-on experience with Clean Architecture, CQRS, and DDD
• Strong understanding of concurrency, threading, memory management, and performance optimization in .NET
• Experience with Docker, cloud-native deployments, and modern DevOps practices
• Hands-on experience with CI/CD pipelines using Azure DevOps
• Experience with Application Insights, OpenTelemetry, and production diagnostics
• Proven ability to debug and resolve issues in complex distributed systems
• Advanced English communication skills.

Nice to have:

• Experience working with both modern microservices and legacy .NET systems
• Familiarity with advanced messaging patterns such as idempotency, retries, and eventual consistency
• Experience contributing to modernization and platform evolution initiatives
• Hands-on experience with Azure Entra ID, OAuth 2.0, and identity/security integrations
• Exposure to observability-driven development and SLO/SLA practices