Modern e-commerce web sites require an advanced administrative and management system connected with database, user interface and some internal system. We have developed different solutions for providing automated process for receiving orders from web site, storing them into database with future processing in office for creating delivery packages. Also these back office systems can be integrated with different CRM, inventorying and accounting systems. As an example of back office system we can describe a system for organizing internal cooperation for the local offices of big distributed corporation or for organizing of internal business processes in company connected with web based front end. This system has a wide list of the services such as web mail system, news, software download, web site management for local offices, the payment system for transactions between the local office and the head office, reporting system for the head office and local offices and many other features. We have good experience in development of web based and mixed systems for business workflow automation.