SMS Parking (link not available) is software for public parkings. It consists of Client Application, SMS Module and Back Office. Client Application is installed on Pocket PC that each parking controller has. Parking controllers are using their copies of Client Application to check if certain vehicle has payed for parking. SMS Module is used by vehicle owners to pay for parking using SMS messages. Back Office is the place where parking administrators can control users, parking zones and sectors, SMS payments, see various stats, etc.
My task on SMS Parking was:
database design,
development of the most parts of the Back Office,
System administration - server installation and setup.
Technologies: Linux, Apache HTTP Server, PHP, Zend Framework, Ruby, Ruby on Rails, SQL, PL/SQL, MySQL, JavaScript, Ajax, HTML, DHTML, CSS.