Senior Backend Engineer with 13+ years of experience designing, developing, and delivering scalable enterprise applications using ASP.NET Core, C#, SQL Server, REST APIs, and Microservices. Extensive experience in building high-performance backend systems, designing secure APIs, modernizing legacy applications, and implementing scalable architectures following Clean Architecture, Domain-Driven Design (DDD), SOLID principles, and industry best practices. Proven expertise in application architecture, distributed systems, database optimization, cloud deployments, DevOps, and performance tuning, with a track record of improving application performance by 88%, maintaining 99.99% system availability, and delivering reliable, secure, and scalable enterprise solutions. Strong background in API design, authentication and authorization, asynchronous programming, multithreading, and backend integrations. Experienced in leading technical initiatives, mentoring developers, conducting code reviews, and leveraging AI-assisted development tools to accelerate code generation, testing, debugging, refactoring, and technical documentation within Agile development environments.