Asher M.

𝗡𝗲𝗲𝗱 𝗮𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝗱 .𝗡𝗘𝗧 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱, 𝗶𝗺𝗽𝗿𝗼𝘃𝗲, 𝗼𝗿 𝗺𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗲 𝗮𝗻 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻? I specialize in C#, ASP.NET Core, .NET backend development, REST APIs, microservices, and complex business applications. I help companies develop reliable new features, resolve challenging production issues, and modernize legacy systems without unnecessary rewrites. 🏆 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 𝗦𝗰𝗼𝗿𝗲 | 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 | $𝟮𝟬𝟬𝗞+ 𝗶𝗻 𝗿𝗲𝗰𝗼𝗿𝗱𝗲𝗱 𝗨𝗽𝘄𝗼𝗿𝗸 𝗰𝗼𝗻𝘁𝗿𝗮𝗰𝘁 𝗵𝗶𝘀𝘁𝗼𝗿𝘆 My Upwork experience includes long-term enterprise .NET development, complex Web API and microservices projects, ASP.NET Boilerplate (ABP) applications, SOAP-to-REST migrations, and SQL Server-to-PostgreSQL migrations. 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵 𝟭. .𝗡𝗘𝗧 𝗕𝗮𝗰𝗸𝗲𝗻𝗱, 𝗪𝗲𝗯 𝗔𝗣𝗜𝘀 & 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 • C#, ASP.NET Core, .NET Core, ASP.NET MVC, and Web API development • REST API design, development, and third-party integrations • Microservices, Clean Architecture, Entity Framework, and SQL Server • Authentication, authorization, backend business logic, and scalable applications • New features and ongoing development for production systems 𝟮. 𝗟𝗲𝗴𝗮𝗰𝘆 .𝗡𝗘𝗧 𝗠𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 & 𝗧𝗿𝗼𝘂𝗯𝗹𝗲𝘀𝗵𝗼𝗼𝘁𝗶𝗻𝗴 • Modernizing .NET Framework and existing ASP.NET applications • Migrating SOAP APIs to modern REST APIs • Refactoring legacy code and improving maintainability • Investigating difficult bugs, async issues, and application performance problems • Improving existing systems while protecting business-critical functionality 𝟯. 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲, 𝗖𝗹𝗼𝘂𝗱 & 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 • SQL Server and PostgreSQL development and migration • SQL Server-to-PostgreSQL / AWS Aurora migration • AWS and Azure application integration • Authentication SDKs, third-party APIs, and custom integrations • React and Angular frontends for .NET-powered applications 𝗥𝗲𝗹𝗲𝘃𝗮𝗻𝘁 𝗨𝗽𝘄𝗼𝗿𝗸 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 ✅ 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 .𝗡𝗘𝗧 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Long-term engagement on an existing production ASP.NET application, working with ASP.NET Boilerplate, MVC, SQL Server, application improvements, and codebase refactoring. ✅ .𝗡𝗘𝗧 𝗖𝗼𝗿𝗲 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀: Worked on complex Web APIs using C#, Clean Architecture, and repository patterns. The client highlighted both my technical expertise and contributions to the engineering team. ✅ 𝗦𝗢𝗔𝗣-𝘁𝗼-𝗥𝗘𝗦𝗧 𝗔𝗣𝗜 𝗠𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Delivered a substantial ASP.NET API migration project involving legacy web services and REST API development. ✅ 𝗖𝗼𝗺𝗽𝗹𝗲𝘅 𝗔𝗦𝗣.𝗡𝗘𝗧 𝗗𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴: Helped a client investigate a difficult production application issue. The successful initial engagement led to a larger development contract. ✅ 𝗦𝗤𝗟 𝗦𝗲𝗿𝘃𝗲𝗿-𝘁𝗼-𝗣𝗼𝘀𝘁𝗴𝗿𝗲𝗦𝗤𝗟 𝗠𝗶𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Completed a successful migration proof of concept followed by a full migration engagement involving PostgreSQL and AWS Aurora. 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 I approach existing software carefully: first understanding the architecture, business requirements, and root causes, then recommending practical changes that balance delivery speed, reliability, and maintainability. I'm comfortable working directly with founders, CTOs, technical leads, and engineering teams—whether you need someone to own a complex backend task or contribute to an established development team. 𝗖𝗼𝗿𝗲 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀: C#, .NET, ASP.NET Core, ASP.NET MVC, .NET Framework, REST APIs, Microservices, Entity Framework, SQL Server, PostgreSQL, AWS, Azure, React, Angular, JavaScript, and TypeScript. 𝗟𝗲𝘁'𝘀 𝗗𝗶𝘀𝗰𝘂𝘀𝘀 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 If you need an experienced .NET developer for backend development, API integrations, modernization, microservices, or difficult application issues, send me an invitation with a brief description of your project. I'll help assess the requirements and recommend a practical next step.