Senior Back-end Engineer – .NET + Integración AI (Migración

• 8+ years of backend development experience, with recent hands-on expertise in .NET 8+ and modern hosting models.
• C1 English level or higher.
• Proven experience leading at least two complete legacy migration cycles in regulated industries such as fintech, taxes, or healthcare.
• Deep understanding of .NET fundamentals, including .NET Standard compatibility, GC behavior, async patterns, and memory allocation minimization.
• Advanced database and ORM experience, specifically with EF Core, Dapper, SQL Server or MySQL, and high-volume bulk operations.
• Strong background in distributed systems architecture, including CQRS, event-driven messaging (SQS, Azure Service Bus, or RabbitMQ), and Redis caching.
• Experience with migration patterns such as Strangler Fig, Golden Master testing, and parallel runs.
• Daily experience using Claude Code with structured workflows, token management strategies, and Model Context Protocol (MCP) architectures.

Skills

• .NET 8
• C#
• EF Core
• Dapper
• SQL Server
• MySQL
• CQRS
• Redis
• AWS SQS
• Azure Service Bus
• Claude Code
• MCP