Developed an order, invoice, and check management system for clients using VB 6.0 and MS Access database. In addition to general data management functions, multiple printing formats for various documents were also preset. This was the first management system I developed, and the client was a deceased elder who taught me a lot about business operations; he was my mentor.

Developed a song and audiovisual media royalty fee calculation system for clients using PHP. The system can import monthly playback and sales data from different merchants and distributors, and then calculate the monthly receivable royalty fees using pre-set royalty fee calculation settings.

Developing a poisoning information management system for clients using ASP.NET and MS SQL database, the system includes various poisoning symptoms, patient information, and treatment process records. This forms a database to help doctors respond to various poisoning situations and provide patients with the fastest and most effective treatment.

Developed a manufacturing process evaluation system for clients using ASP.NET and MS SQL database. The system collects various production data from enterprises for analysis and scoring based on Lean Six Sigma methodology, providing visual professional reports to help businesses regularly identify imperfections in their production lines and implement continuous improvements.

Using VB.NET, Crystal Report, and MS SQL database to develop a business management system for artificial leather for clients, which includes not only basic inventory and financial management functions but also complex requirements such as multiple internal company transactions and multi-level analytical reports, capable of tracking all changes of each batch of goods from the initial stage to the final stage.

Develop a digital content sales and management system using ColdFusion, WAP, and IVRS technologies. The system can send content to customers via SMS, WAP, and audio. For example, ringtones, games, wallpapers, and voicemail, etc.

Develop an email broadcasting system using ColdFusion technology. The system allows users to create email content step by step and manage mailing lists, while also providing features such as sending data and email reading status analysis.

Develop a lottery application using VB.NET and SQL Lite that includes animations and sound effects. The system can pre-set gift information (including photos) and the range of ticket numbers, and then conduct real-time draws during the event and display the winning results.

Develop an academic article management system for the school, which can scrape academic articles from Google and extract useful content from the obtained HTML to store in a database for users to edit and organize later.

Developed a course registration and student attendance signing tool for a church using VB.NET and SQL Lite. This tool allows the church to effectively manage the attendance of students in each course, thereby assessing their ability to graduate and receive certificates.

Build a cross-regional server and network high availability (HA) environment, utilizing virtualization technology to promote the operation of various servers such as AD, file, email, ERP, OA, and VPN. Provide comprehensive protection for server security and stability. At the same time, assist in establishing an IT governance system, enabling clients to meet the standards of the financial industry from system infrastructure to operational management.

Build a cross-regional server and network high availability (HA) environment, utilizing virtualization technology to support the operation of various servers such as AD, file, email, ERP, OA, and VPN. Ensure comprehensive security and stability of the servers, reasonably allocate computing power, and minimize the investment, management, and maintenance costs of the system. At the same time, meet the industry requirements of financial institutions.

Use a hybrid cloud to build the operational platform for the customer's ERP system and provide secure backups for the system. This allows the ERP to operate efficiently and securely, handling the load of completing hundreds of orders simultaneously at a designated time each day.