Developed an Operations Management System using SpecFlow and .NET Core; provided customer support for different apps, analyzed and proposed solutions; built an SSRS-based reporting system; led a data migration project to AWS; established CI/CD pipelines; worked with ASP.NET Core, ReactJS, HTML5, CSS, JavaScript, jQuery, TypeScript and related technologies.

Senior Full Stack Developer at GICS Singapore

May 1, 2024 - October 24, 2025

Developed a generic functional test toolkit for RESTful APIs using SpecFlow and .NET Core; migrated WCF services to .NET Core REST APIs and set up a CI/CD pipeline; contributed to trading platform UI/UX development; mobile development using Power Platform for Sales Mobile App.

Senior Engineer at Samsung SDS Asia Pacific

August 1, 2023 - October 24, 2025

Developed Smart Sales Kit to schedule Samsung electronics employees’ daily client-site visits; built S-Connect app for promoters to claim promotion commissions, reducing processing time from 63 to 3 days; worked on ASP.NET Core, Angular 8, HTML, CSS, JavaScript, ReactJS, Jira, REST API, Swagger, Docker, AWS and Azure; contributed to cross-channel integration and data migration.

Senior Software Engineer at Inland Revenue Authority of Singapore (IRAS)

July 1, 2021 - October 24, 2025

Automated tax notices to generate soft copies and hard copies of letters to taxpayers; developed add-ons for Microsoft Dynamics 365 Project Operations to manage projects and resources; built a Preferences Management system to capture recipients' preferences for notices and correspondence; utilized DataStage jobs, batch jobs, ASP.NET, HTML, CSS, JavaScript, Jira, REST API, Agile, SonarQube, .NET, and Dynamics 365.

Senior Software Engineer at Cloud Solutions International

June 1, 2020 - October 24, 2025

Developed a generic functional test toolkit for RESTful APIs; migrated WCF web services to .NET Core REST APIs and set up CI/CD pipelines; client-facing UI/UX development; mobile development using Power Platform; led delivery for hospitality-related projects; employed ASP.NET Core, ReactJS, HTML/CSS/JS, Docker, AWS and Azure.

Technical Lead at Champ ITS Solutions

June 1, 2018 - October 24, 2025

Led full-stack development projects; developed Electronic Caregiver e-commerce web application for a US client; mentored team, conducted interviews, sprint planning and time estimation; utilized ReactJS, HTML, CSS, JavaScript, ASP.NET, .NET Core, Docker, REST API, Jira, Swagger, SQL Server and related tools.