At PaymentEvolution, I lead key modernization initiatives to enhance security, performance, and user experience across our applications. Currently supervising the migration of an outdated authentication system to a robust .NET 6 IdentityServer solution, integrating ASP.NET Identity with OAuth2.0/OpenID Connect protocols. This overhaul has reduced login-related support tickets by 40% and boosted user satisfaction to 95%, demonstrating our commitment to secure and user-friendly authentication.In an effort to modernize legacy applications, I migrated our payroll module from ASP.NET WebForms to MVC 5, employing Razor Views for a responsive frontend and a REST API-driven backend. This transition reduced page load times by 50% and improved scalability, supporting a 30% increase in concurrent users.I also developed a custom CSV import algorithm to automate employee payroll data imports, reducing manual data entry time by 60% and minimizing errors by 30%. This enabled HR teams to efficiently process over 500 records in a single batch without downtime, significantly enhancing productivity.In addition, I integrated a 3rd-party accounting system with our payroll database through custom middleware services, automating real-time data synchronization and eliminating manual data entry. This solution improved user satisfaction by simplifying processes and reducing data discrepancies.Lastly, I designed and implemented a scalable GeoLocation Service API in C# to manage real-time location data for over 1,000 devices. By optimizing concurrent updates and integrating with an external service for initial data loads, I improved data retrieval times by 40%, enhancing real-time data access.

In my role as a Full Stack Web Developer at POWERSOFT, I collaborated in the development of a full-featured ERP solution using .NET Framework, which included designing SQL Server data models, crafting an intuitive frontend UI, and implementing a Sales module to streamline invoice generation and order management. This module reduced manual entry errors by 30% and enhanced overall business efficiency.Additionally, I developed and deployed a web-based inventory control application, providing real-time tracking and automated reorder alerts, which improved inventory accuracy by 50% and reduced stock-out incidents by 20%. As part of my responsibilities, I administered Windows Server and SQL Server databases, optimizing configurations and setting up reliable backup and recovery strategies that achieved 99.9% database availability and cut server downtime by 40%.I also led the integration of our internal SQL Server database with a WordPress e-commerce website through custom SQL scripts, enabling seamless real-time data synchronization with the MySQL database. This integration reduced manual synchronization errors by 80% and significantly improved order processing efficiency.

As a Freelance Web Developer, I specialized in creating intuitive, high-performing websites and applications tailored to client needs. Successfully developed and maintained e-commerce websites using WordPress and Prestashop, leveraging MySQL and PhpMyAdmin for efficient database management. In this role, I streamlined processes for website maintenance, optimizing load times and enhancing security measures, which resulted in improved user engagement and customer satisfaction for client businesses.Additionally, I designed custom satisfaction forms using ASP.NET Web Forms, allowing clients to gain valuable feedback and improve service quality. My freelance work has honed my ability to manage multiple projects independently, adapt to diverse client requirements, and apply innovative solutions in a fast-paced environment.