Lead Software Engineer at MUFG Bank, Ltd

Lead Agile development and enhance application performance and user experience. Designed and developed .NET (C#, VB.NET, Web Forms, ASP.NET Core) and front-end solutions using Angular, React, Blazor, jQuery, Bootstrap, HTML5/CSS3. Upgraded Angular applications (16 to 18), implemented deferred views and improved efficiency with Angular 18 features, and used Angular CLI for scaffolding/configuration. Built and migrated mobile applications (Xamarin to .NET MAUI) using MVVM and XAML. Developed and deployed RESTful microservices using .NET Core and Web API, using EF for back-end data solutions. Implemented reactive Angular patterns using RxJS operators for state management and async event handling. Set up CI/CD pipelines with Azure DevOps and Jenkins; built serverless workflows using Azure Functions/Logic Apps. Implemented security controls including OAuth2 token introspection/validation and RBAC. Performed unit/integration/regression testing and provided incident/on-call support and disast

Application Developer at NTT Data Global delivery services

Worked in Agile SDLC across design, development, testing, debugging, and support for web applications. Built responsive UI using Razor views in ASP.NET MVC and .NET Core and implemented front-end features with HTML5/CSS3, Bootstrap, Blazor, JavaScript, jQuery, Angular 2, AJAX, and form controls. Developed SPAs with React and built backend APIs with .NET Core. Created reusable React components and system APIs/frameworks for performance. Documented microservices (API specs, data flow diagrams, deployment guides). Built ETL workflows using SSIS for migrating data from Excel/CSV/flat files; automated daily data loads and reporting with SSIS/SSRS. Created DB objects (tables, views, stored procedures, UDFs, cursors) and used PL/SQL in SQL Server for transformations. Used Docker for containerized deployment, performed unit/integration/regression testing and troubleshooting, and used TFS/SVN for source control collaboration.