Anton Y.

Looking for a reliable backend developer to build, integrate, or improve your business software? I’m a Senior C#/.NET Backend Developer with 14+ years of commercial experience building and maintaining production systems. I help businesses build scalable backend systems, integrate third-party APIs, automate manual processes, and modernize legacy .NET applications. ### What I can help with • Backend development with C# / .NET / ASP.NET Core • REST APIs and third-party API integrations • Business process automation • Telegram / WhatsApp / messaging integrations • CRM and order management integrations • AI-powered backend features and automations • Database design and SQL performance optimization • Microservices and distributed systems • Legacy .NET modernization • Cloud migration and deployment ### Core Technologies • C#, .NET, .NET 6–8, ASP.NET Core, Web API • MS SQL Server, PostgreSQL, Entity Framework Core, Dapper • REST, gRPC, RabbitMQ, Kafka • Azure, Docker, CI/CD, Azure DevOps • Unit and integration testing ### How I work I focus on understanding the business problem first and then building the simplest reliable technical solution. Whether you need a new backend from scratch, an API integration, automation of a manual workflow, or help fixing a difficult production system, I can take the project from requirements through implementation and deployment. I’m comfortable working with existing codebases, unfamiliar systems, external APIs, databases, and production environments. If you have a process that is currently manual, slow, or difficult to maintain, describe it to me. I can help turn it into a reliable automated system.