- Work as main contributor to front-end and back-end with ASP.NET Core, ReactJs. - Use Azure DevOps to plan projects using Agile tools, manage code using Git, test the application, and deploy code using CI/CD system. - Build CICD Pipeline for projects using Azure DevOps, Docker, K8S. - Apply multiple design patterns to achieve loose coupling between component and independent scaling, such as Mediator, CQRS with multiple Data Source, Pipeline, Factory, Generic Repository, Unit Of Work, Backend For Frontend,.... - Apply Microservices, Clean Architecture to Project for better separation of concern, easier to maintain, develop, and test. - Implement Azure Service Bus to achieve asynchronous communication between microservices. - Implement Azure Key Vault for storing secrects. - Implement Single Sign On using Azure Active Directory. - Implement Azure Blob Storage for storing file and event handling. - Implement Azure Event Grid for event handling with Azure Function. - Implement multiple Application patterns of Durable Azure Function such as Function chaining, Fan out / fan in,... - using Bicep and Azure Resource Manager to automate and simplify the provisioning of infrastructure resources. - Write Unit Test and Integration Test using Nunit, Moq. - Implement logging machenism with DataDog. - Using Redux for ReactJs state management. - Use JSON Web Token (JWT) for authentication and authorization process.

- Work as main contributor to front-end and back-end with ReactJs, .NET Core 2.1. - Use Azure DevOps to plan projects using Agile tools, manage code using Git, test the application, and deploy code using CI/CD system. - Develop front-end components (both functional component and class component) using HTML5/CSS3, ReactJs, Bootstrap 4, styled-components. - Using Redux for ReactJs state management. - Use LinQ to retrieve data from different sources, such as Object collection, Entities, SQL. - Implement AutoMapper mapping library to map objects belonging to dissimilar types. - Create and maintain data models using Entity Framework Core Code First Approach. - Use JSON Web Token (JWT) for authentication and authorization process. - Create CRUD RESTful API. - Apply Repository Pattern to encapsulate the logic required to access data sources - Migrating web API project to .NET Core 6. - Internationalize website.

- Work as contributor to front-end and back-end with Angular, .NET Core, .NET MVC and Flutter for Mobile App. - Use Jira to plan projects using Agile tools, manage code using GitLab. - Develop front-end components using HTML5/CSS3, Angular 7/13, Bootstrap 4. - Use LinQ to retrieve data from different sources, such as Object collection, Entities, SQL. - Using NgRx for front-end state management. - Implement AutoMapper mapping library to map objects belonging to dissimilar types. - Use ViewBag, ViewData, TempData to pass data in various scenarios. - Create and maintain data models using Entity Framework Core Code First Approach. - Use JSON Web Token (JWT) for authentication and authorization process. - Create CRUD RESTful API. - Implement SingleSignOn webview in App. - Implement Azure Service Bus for sending email asynchronously. - Implement Azure Key Vault for storing and accessing secrets. - Apply Repository Pattern to encapsulate the logic required to access data sources - Implement Administrator website using .NET MVC with Razor View Engine and Jquery - Build and release TestFlight App to iOS Appstore and APK for GooglePlay. - Use RiverPod for Flutter state management - Use NLog to log error and store in Database and TxtFile.

- Work as main contributor to front-end and back-end with ASP.NET MVC and WCF for services. - Use Azure DevOps to plan projects using Agile tools, manage code using Git, test the application, and deploy code using CI/CD system. - Develop front-end components using HTML5/CSS3, Bootstrap 4, Razor view engine. - Work with JavaScript, jQuery, Ajax to send and retrieve data from a server asynchronously without interfering with the display and behavior of the existing page. - Create multiple PartialViews to achieve reusable portions of a web page. - Use ViewBag, ViewData, TempData to pass data in various scenarios. - Work with Rotativa, Excel Package to generate/print PDF and Excel files. - User Windows Communication Foundation (WCF) for services that send and receive data asynchronously. - Use LinQ to retrieve data from different sources, such as Object collection, Entities, SQL. - Implement AutoMapper mapping library to map objects belonging to dissimilar types. - Use jQuery DataTable (server-side or client-side rendering) with multiple sort and custom filter options for better user experience. - Created data models using Entity Framework 6 Code First Approach. - Provide input to Microsoft SQL Server database architecture design and HR data migration from internal data sources. - Create Triggers on update, insert, delete for multiple purposes, such as journal table for keeping track of data manipulated by users, keeping multiple SQL servers in sync.

- Work as main contributor to front-end Angular and back-end ASP.NET Framework Web API development using Microservices architecture. - Deploy all the Microservices with Docker. - Develop front-end components using HTML5/CSS3, Angular 6, Bootstrap 4. - Use Pipe to modify output data such as date, json, uppercase,... - Implement client-side Angular 6 form using Reactive Forms (or Model Driven) with validations, using various controls and filters. - Implement Angular Route Guard to restrict access to specific routes without valid JSON Web Token (JWT). - Use ngx-cookie to store JSON Web Token (JWT). - Implement a Token Interceptor to include the JWT which is in cookie as the Authorization header in any HTTP request that is sent and also another JWT interceptor to handle the 401 Authorized responses and prompt the user to log in again to renew the token when the token is expired. - Create multiple views with a routing module separated from the app module to provide clarity. - Implement lazy loading, AOT to improve performance. - Debug application, identify source of bugs in Angular code and fixes, refactor code to improve project readability and maintainability. - Created data models using Entity Framework 6 Code First approach. - Implement RESTful ASP.NET Framework Web API services that provide HTTP endpoint for logic functionality such as user register, login, filter products.... - Implement the JWT token-based authentication and custom JWT authentication action filter to restrict access to non-customer users. - Implement Hash function with salt for users' password to enhance the security. - Implement AutoMapper to do a mapping between Data Transfer Objects (DTOs) and model objects. - Implement Unit of Work and Generic Repository pattern and Dependency Injection with Unity to achieve loose coupling. - Provide input to Microsoft SQL Server database architecture design and HR data migration from internal data sources.

- Work as main contributor to front-end and back-end with Angular 13, Flutter, Java Spring Boot. - Use Trello to plan projects using Agile tools, manage code using Git, test the application, and deploy code using CI/CD pipeline on Gitlab with Docker. - Develop front-end components using HTML5/CSS3, Typescript, javaScript, Bootstrap 4. - Use MapStruct to convert objects from one representation to another. - User Querydsl library and DAO pattern, Hibernate for data persistence. - Implement batch project to help admin render excel/htm file to json file for easy maintenance and update process. - Use Angular DataTable (server-side or client-side rendering) with multiple sort and custom filter options for better user experience. - Build an administrator site for invoices, users, data management. - Implement Angular Route Guard to restrict access to specific routes without valid JSON Web Token (JWT). - Implement a Token Interceptor to include the JWT which is in cookie as the Authorization header in any HTTP request that is sent and also another JWT interceptor to handle the 401 Authorized responses and prompt the user to log in again to renew the token when the token is expired. - Develop reusable stateless and stateful widget. - Using Bloc design pattern to help separate business logic from the presentation layer. - Build and release App to iOS Appstore and Google Play Store. - Implement monthlty subsciption with In-app Purchase. - Moneitizing app with Google Admod and Google AdSense. - Internationalize website with the Transloco library and app.