Worked on the UN Web Buy Plus system, serving both general buyers (primarily national government procurement) and logistics providers, alongside a backend system for UNOPS was officers and internal order processing. o Technologies used: Backend in .NET Core 6, .NET 4.7.2, Mssql; Frontend in Svelte.

Led the development of the Cosmos EC3 project using .NET 4.x C# and Due, focusing on order, logistics, and discount modules, along with third-party API integration (e.g. Shopee and 91app)

Spearheaded the development of the Shopping Countdown online shopping website using .NET Core 6 and React. o Created an MQTT Testing website using Nodejs

o Scrum for Agile / Micro Service / AWS o Gaming platform for overseas players (.net core 3 C# and react) - 3rd Gaming API integration - 3rd Cash flow API integration o B2B backend-system for marketing (.net MVC and .net core 3 C#)

o Customer consulting and demand collecting o In charge of project management and development(4 members) • Human resource information system (.net 3.x - 4.x C#) • Employee benefits system (.net 3.x - 4.x C#) • Payroll and leave system (.net MVC C#) • E-service system(Far East Group flow engine .net MVC C#) o Company internal Android lecturer.

o Game center (android app): People can purchase games here. o File encryption/decryption tool (C# windows form). o Train junior programmer.

o Online official document system (ActionScript Flex). o, Create various online forms.