Consulted in development of an electronic commerce system architecture. Designed COM objects that utilizes Microsoft Transaction Server to achieve database integrity and scalability. Implemented client-side Java script for data validation and reduce network traffic between browser and server. Employed server-side VB scripting, along with custom design COM objects, stored procedures, triggers and SQL Server to ensure rapid and predictable response time. Implemented online credit card verification and debit by means of third party control and service.