- Trained and mentored junior developers, improving team performance through troubleshooting and skill-building.- Collaborated with developers and QA teams to resolve technical issues and ensure smooth project delivery.- Partnered with business analysts to develop high-quality solutions that met client requirements.- Provided expert technical support to resolve complex problems, leveraging deep knowledge of relevant technologies.- Contributed to the architecture, design, and implementation of robust back-end features using C#.- Developed highly scalable web APIs and Windows services that delivered reliable performance.

- Responsible for requirement study, design, end-to-end development, testing, training, maintain and support in production environment.- Developed and maintained a web-based ERP system covering multiple departments and functions, including HR, sales, purchasing, finance, inventory, and manufacturing.- Designed and developed a mobile app for Android and iOS platforms, including leave application, approval, resource booking, and staff/customer/supplier directory.- Partnered with each department to understand and address specific needs, leveraging end-to-end development, testing, training, and support.- Achievement :1. Developed a web-based ERP system and mobile app from scratch, streamlining business processes through cross-departmental and cross-branch automation.2. Supported over 200 employees across branches in China, Taiwan, and Thailand.3. Designed the system to cater to HR policies in China, Taiwan, and Thailand.

- Responsible for the development and enhancement of applications, ensuring they meet user requirements and are customized accordingly.- Continually improving existing application processes to optimize performance and maintain reliability.- Maintaining and ensuring all systems are in good working order, minimizing downtime and maximizing productivity.- Project involved :1. Financial Information System - Developed a custom-built solution for the core modules of a financial oversea management system, including the budget module, standard finance system, and POS. - Client : Ministry of Foreign Affairs of Singapore2. Financial System - Standard finance system - Client : Singapore Tourism Board & International Enterprise Singapore3. Real Estate Management System & Business Management System (HRMS)

- Responsible for developing and enhancing applications, customizing them based on user requirements, and continuously improving existing application processes.- Maintaining all systems to ensure they are in good working order, minimizing downtime and maximizing productivity.